Have you ever seen a trailer with a load capacity of 150 tons or more? How do you transport large equipment such as excavators or cranes from one place to another?
Would you like to learn more about the trailers that can carry these heavy loads? Have you heard of lowbed(lowboy) trailers that can carry up to 150 tons?
Lowbed trailers are available in different sizes with load capacities of 20 tons, 30 tons, 50 tons, 70 tons, 80 tons, 100 tons, 120 tons, and 150 tons. Different types of low bed trailers have different numbers of axles, ranging from 2 to 8 axles.
Low bed trailers are used by many different types of businesses, such as trucking, heavy hauling, and so on. In some places, these trucks are referred to as “lowboy trucks”. Some people consider modular trailers with hydraulic wheels to be lowbed trailers.
This post-Low Bed Trailer Ultimate Guide will tell you everything you need to know about lowbed trailers. We’ll go in-depth on how low bed trailers are assembled, what parts are available, and how quality control works.
We’ll go over the pros and cons of each trailer and show you how to pick the best low bed trailer for your business. By following this description, you can buy a lowboy trailer or low bed trailer from China at a low price.
Table of Contents
Chapter 1: What Is a Low Bed Trailer?
1.1 History of Low Bed Trailers
The first lowbed trailers were introduced in the 1920s. The first trailers had a fixed gooseneck tube that could be used to attach the front of the trailer to a truck.
The rear of the trailer was fitted with thick rubber tires. The only way to load it was from the back. Due to the way the trailer is designed, it is difficult to load heavy cargo. Equipment that needed to be transported would be delivered to the deck of the trailer via the rubber rear tires.
In the 1950s, a better low bed truck appeared. The improved model could transport more and it was easy to keep heavy loads on the deck.
In 1958, trailers with removable goosenecks were first introduced. This design made loading the deck much easier. Since the first lowbed trailers had riveted gooseneck tubes, they could only be loaded from the rear.
In the 1950s, a new type of low bed truck was introduced. The gooseneck tubes on this trailer could be loaded from the front.
The old detachable gooseneck trailers worked the same way as the new RGN trailers. This design eliminates the need for a loading ramp in the trailer. The new lowbed trailer now being produced has air interrupters, which the older trailers did not have.
As technology advances, so do low bed trailers. The low bed trailer now has added hydraulic systems. These hydraulic systems improve the performance of the lowbed trailer and make it better for transporting heavy loads.
1.2 Applications and Advantages of Low Bed Trailer
Application Areas of Low Bed Trailers
Different types of businesses use lowbed trailers to transport heavy loads. These are the most common uses of lowbed trailers below.
Heavy-Duty Vehicles
Automobile manufacturers use low bed trailers to transport heavy vehicles from one showroom to another. Transporters move cars from ports to customers’ homes and sometimes to showrooms.
Heavy vehicles such as buses, trucks, and specialty vehicles can be transported on lowbed trailers. Lowbed trailers can haul a large number of smaller vehicles at the same time.
Rail Vehicles
There are various types of rail vehicles such as wagons, locomotives, road rail vehicles and rail coaches.
All of these vehicles have one thing in common: they are big and heavy. One of the best ways to move rail vehicles is to use a low bed truck.
Mining Machinery
Drilling and transporting materials such as crude oil and minerals requires large machinery. This equipment is assembled away from the mine site and then transported to the mining area on low bed truck.
Due to the construction of mining machinery, the use of lowbed trailers is an appropriate method of transportation. Mining equipment is probably the heaviest equipment transported over the road by machine builders.
Forestry Machinery
Heavy machinery and equipment are also commonly used in the timber business. Heavy machinery is needed to cut down trees and move logs. Logs are sometimes processed into lumber and other products on-site before being transported.
Before being transported to the forest, these machines are built in assembly plants or shipped from other countries. Low-bed trailers are used to transport forestry machinery from the place of assembly to the place of use.
The trailer’s wheels can withstand the rough ground in the forest. Low bed trailers are also used to transport forestry equipment from one forest to another or back to the assembly plant at the end of the project.
Agricultural Machinery
Agriculture is also an area where heavy machinery is often used. These heavy equipment are mainly used for large-scale farming. These large farms are located far from towns and cities.
The most common types of farm machinery transported on lowbed trailers are loaders, excavators, bulldozers, cranes and pavers. Low bed trailers can travel through muddy fields to transport equipment from one farm to another.
Construction Machinery
Low bed trailers are also commonly used in the construction industry. Many different types of heavy machinery are often used when building roads and bridges or houses.
Standard semi-trailers are not always able to transport certain types of construction machinery and materials. Low bed trailer can transport these heavy machines to the construction site. In addition, these trailers are often used to transport large bulk materials such as piers and bridges.
Windmill Components
Windmill components are typically assembled in a factory and then transported to the construction site. These components are wide and heavy, just like any other heavy cargo.
Because of the way they are manufactured and designed, these components cannot fit on a narrow trailer. Lowboy are an efficient way to transport these components to the job site.
Low bed trailers can be used to transport a variety of heavy cargo, not just vehicles and machinery. For example, finished products from these areas are loaded into containers and stacked on a Lowboy.
The containers can be stacked without falling over. Because of this, many manufacturers prefer to use lowbed trailers to deliver finished goods to retailers.
Advantages of Lowbed Trailers
lowbed trailers are used in many applications because they perform better than other heavy-duty haulers. Here are some of its main benefits.
Stability
Lowboy trailers have a very large deck compared to other large haulers. A lower deck means that the vehicle has a lower center of gravity. Because of this, lowbed trailers are more stable than trucks when moving heavy loads.
Widening the support base is one way to improve stability. Because the width of the cargo plane can be widened, lowbed trailer can do this. Despite the height and weight of the cargo, low bed trailer remains stable on the road.
Safety
Low bed trailers were originally designed to carry heavy loads. The trailer is made of sturdy materials that can withstand pressures of up to 700mpa.
Not only that, but the height of the main beam can be up to 550 millimeters. This means that manufacturers can ensure the safety of goods and equipment during transportation.
Compliance with Height Regulations
In some countries, the height at which goods can be transported on the road is limited by law.
Companies can use low-flatbed trailers to transport over-height equipment safely, as they do not violate any regulations.
For other transportation companies, it can be difficult to load tall tools onto the trailer. The rear of some types of lowbed trailers can be lowered, which makes loading large items easier and safer.
Versatility
Low bed trailers are useful for many commercial purposes, which is one of the reasons why many people buy them. Cargo that is too wide or too large for the trailer can be transported. In most cases, heavy machinery falls under the category of machines that are too wide or too heavy.
Low bed trailers are manufactured in a way that allows companies to move large loads with ease. Let’s not forget that trailers can also carry extra tall cargo.
Businesses that transport different types of goods do not need to purchase separate trucks for each type of cargo. Any type of cargo can be transported in a low bed truck as long as it is packaged properly. When a hauler purchases a low bed trailer, the only thing they need to worry about is keeping it in good condition.
1.3 Types of Low Bed Trailers
Regular Low Bed trailer
Most lowbed trailers are flatbed, which means the load board is a flatbed. The only drop on the trailer is behind the gooseneck tube, as shown below.
Other types of trailers are used for transporting normal heavy loads and at the same time, they are not able to transport very tall heavy loads. Since lowbed trailers use a lower flatbed, the working area of a lowbed trailer is higher than other types of trailers.
The average low bed truck with two axles can transport up to 20 tons of heavy loads. Of course, you can increase the trailer’s weight capacity by increasing the number of axles.
In addition, the load capacity of a low bed trailer also depends on its model. Depending on the customer’s needs, some factories produce regular lowbed trailers with additional axles. Depending on the type of cargo, you can ask for a standard trailer that is customized just for you.
Advantages
One of the benefits of using a regular low bed truck is that you can save money. The price of this heavy-duty trailer is lower than other similar products.
The cargo platform is longer, which is another advantage of a regular low bed trailer. Most low bed trailers have a second section that can be used as a cargo platform, and this second section can make the cargo platform longer.
Low Loader Trailer
This trailer has another name: the double-deck trailer. What sets this trailer apart is that it has a lower cargo space.
The deck for loading cargo is lower than the back half of the trailer. The cargo deck consists of a staircase structure or a recessed beam.
Advantages
The best feature of a low load trailer is that it is very stable. The staircase structure makes the center of the cargo shorter, thus making it more stable during transportation.
Heavy machinery and tall cargoes are often transported on these trailers. Countries with strict height restrictions are best suited for this type of trailer.
Removable Gooseneck Trailers (RGN trailers) and Folding Gooseneck Trailers
RGN trailers and low bed trailers have stairs on the actual part of the trailer. The main difference between these trailers is that the gooseneck can be removed.
Heavy tools and equipment can be moved with RGN trailers. With a regular lowbed trailer, large items are loaded from the back of it. The RGN trailer loads from the front.
Because the gooseneck can be removed, large items can be loaded from the front. Loading from the front of a folding gooseneck trailer is also easy.
The difference between a folding gooseneck trailer and an RGN trailer is how the gooseneck is moved. An RGN or folding gooseneck trailer does not have a rear ladder like other trailers.
There are two main types of removable goosenecks. The first type is the RGN trailer with hydraulics. This trailer is the easiest and quickest to remove compared to other types of removable gooseneck trailers.
Hydraulic gooseneck trailers are the most popular type of low profile trailer and can be used for a variety of purposes. The gooseneck can be removed from the trailer by means of a hydraulic piston. When loading, the cylinder can lower or raise the trailer as needed.
The hydraulic RGN trailer has a small tank that connects the gooseneck to the truck. If the hitch is removed, heavy loads can be driven from the front of the trailer to the deck.
The hydraulic RGN trailer can be operated from the truck’s auxiliary unit. You can also drive it with a pony engine mounted on the RGN trailer gooseneck hose. The problem with hydraulic trailers is that they are heavy and don’t have long decks.
The mechanically detachable gooseneck trailer is the second type of RGN trailer. This trailer is more difficult to raise and lower and takes longer to do so than a hydraulic trailer.
The biggest advantage of mechanical RGN trailers is that they cost less and weigh less. They also have longer decks, which means they can carry long, large loads.
Many collapsible gooseneck trailers are mechanical. When the gooseneck trailer is folded up, the deck folds down to the ground. Maintaining a hydraulic collapsible gooseneck trailer requires more maintenance than maintaining a mechanical collapsible gooseneck trailer.
This is because the cost and maintenance of the hydraulic system is higher. The ease and speed of loading items comes at the cost of the extra cost of maintaining the hydraulic system.
Advantages
One of the advantages of a removable or collapsible gooseneck trailer is that it is safer to load large items from the front than from the back or sides. When moving large loads, loading from the back can be a safety hazard.
There are building structures behind the trailer. Therefore, to load large items, you will need a long ladder. Heavy items may fall off the ladder or from the back onto the cargo platform. Such a fall can cause damage to the cargo or equipment before it is transported.
1.4 Lowbed Trailers of Different Configurations
As you can see, there are different types of lowbed trailers. However, lowbed trailers also vary in their construction. As a result, you may find different constructions of the same type of lowbed trailer. There are four main types of construction of low bed trailers.
First, the number of main beams is the main difference between this type of construction. Depending on the weight that can be carried, the trailer may have two or three beams. Three cross members allow for a more secure cargo.
Second, the iron plates on most low-bed trailers are strong, durable, and long-lasting. However, some countries prefer to use wooden planks rather than iron. The main reason for using wooden planks is to make the trailer lighter.
Thirdly, the size of a low bed trailer sometimes needs to be changed depending on the cargo that needs to be transported. The cargo may be very long or very large.
This type of construction is unique in that it differs in that the deck on the trailer can be widened to carry wider cargo. As shown in the picture below, a trailer with this design has a device on the side that can be widened.
Fourth, the tires on a low bed truck can be either exposed or hidden. The main reason for exposing the tires is to reduce the height of the trailer.
This is common where there are strict height restrictions. Where there are no height restrictions, it is common to hide the tires. In the picture below is a low bed trailer with hidden tires.
An example of a low bed trailer with exposed tires is shown in the figure below.
1.5 Calculating Load Capacity
Talking to an engineer is the best way to buy a lowbed trailer. With the help of a professional, you can calculate how much weight the trailer can carry.
The first thing to consider when shopping for a lowbed trailer is how much weight you want to transport. The right trailer can meet your transportation needs.
However, you may not always get an expert answer right away. To calculate the maximum load capacity without an engineer, follow these steps:
Maximum load capacity = number of axles x each axle’s load capacity + the load capacity of the towing truck
This method gives you a rough idea of how much weight the trailer can carry. In order to calculate the correct axle carrying capacity, you need to use a different method.
Each axle can carry a different amount of weight. Most axles are 13t, 26t, or 30t, which means they can carry a lot of weight. Here’s how to calculate which wheels to use.
Total weight = empty weight (vehicle weight) + cargo weight = 2 x number of axles x each axle’s load capacity
This formula is based on the fact that the load capacity of the total axles is approximately the same as the load capacity of the trailer. Your math skills are sufficient to select the correct type of gear without the help of an engineer.
Chapter 2: Factors to Consider When Purchasing a Low Bed Trailer
2.1 How to Pick the Right Model
Regular low-bed trucks, RGN trailers, and low loaders have their advantages and disadvantages. You can choose the model that best suits your business based on the cargo you need to transport.
Choosing the right low-bed trailer is important to ensure the safety of your cargo. Always make sure that your cargo arrives at its destination in perfect condition. Any collision or damage during transportation can result in significant losses.
Any damage to a lowbed trailer can have a major impact on the profitability of your business because they transport heavy and expensive cargo. When you run a freight transportation company, accidents and damages will tarnish your company’s image.
Downtime is another problem that can occur if you choose the wrong type of low bed trailer. If you choose a trailer with lower-quality components, then you will disappoint your customers with sporadic downtime.
To choose the right type, you should consider some of the following important things.
Price
You should always have a budget before you start shopping. The price of low-bed trucks depends on how well they work and how much weight they can carry.
When it comes to hauling heavy loads, regular low bed trailers are more cost-effective than trailers. Your budget should allow you to buy the best model.
If you want to transport heavy cargo at the lowest possible cost, then a regular lowbed trailer can meet your needs. For most businesses, a low bed truck is the best way to spend the least amount of money moving large items.
Cargo Size
When picking a trailer type, you should think about how big your cargo is. Consider the width and height, especially if your country has regulations on the height of cars.
If the cargo is too tall, you can opt for a low loader, RGN trailer, or folding gooseneck trailer. You can lower the rear of the model, which reduces the overall height of the cargo.
Cargo Weight
The right type depends on the maximum weight of the cargo. If you need to move more than 70 tons of cargo, you may need to use a low loader, an RGN trailer, and a folding gooseneck trailer.
All three types of trailers have plenty of room for heavy loads. In addition, the bottom deck allows for stability when handling heavy loads.
When lowering the rear load, the center of gravity or the middle of the load moves down. When you lower the center of gravity of a heavy load, it becomes more stable.
Loading Methods
Many businesses have trouble loading heavy cargo on trailers. However, if you choose the right type of trailer, the loading process may be faster. If the trailer doesn’t have a deck, then they will have a difficult time loading large, bulky cargo.
Your trailer will need a stair structure, which not only reduces the height of your cargo but also makes it easier to load. Different types of trailers have different loading options.
RGNs and low loaders are suitable for loading heavy cargo. However, if you have lifting equipment, it may be better to use a regular trailer. You can load heavy loads on top of a low bed truck from the front or the back.
However, there are some types of trailers on the market that allow you to place the trailer underneath the load and lift it. This method is easy to use and less likely to be damaged when loading cargo.
Maintenance Costs
The purchase price of a lowbed trailer is not the only cost. In order to keep your trailer running at its best, you will need to maintain it on a regular basis. Some companies use expensive parts to make the best trailers.
You will need to learn how to maintain the different parts. However, you should consider how much it costs to keep the trailer running all the time. If you buy a cheap trailer, it may cost more to repair broken parts.
Sometimes, quality parts in expensive trailers mean that they don’t require as much maintenance. You can find out about maintenance needs by reading the manufacturer’s instructions.
In the end, you should buy a trailer that can carry the type of cargo you need but is not too expensive. Compare the price of the trailer to its workability and carrying capacity.
Future Business Needs
You may purchase a trailer based on the types of cargo your company has transported in the past. However, you should still consider that the type of cargo may change in the future.
If you are new to running a freight business, your first load may be within the normal range of weight, width, and height. As your business grows, the cargo may get bigger, heavier, and wider.
The best thing you can do is to purchase a trailer that will meet the needs of your current business as well as the needs of your future business. For example, you can use a regular trailer to move cargo now, but in the future, you will need a low loader or RGN trailer.
It’s better and more convenient to buy an RGN trailer that will last a long time. When your business grows, you won’t have to buy a new low-bed trailer.
2.2 How to Pick Parts
Once you have picked the right model for your shipment, you need to consider each part of the trailer. Remember, you don’t always have an engineer around to help you check the load-carrying capacity of the parts. In this chapter, you will learn how to select different parts, such as
- Material
- Main beam
- Landing leg
- Kingpin
- Tires
- Axles and brake
- Suspension
- Ramp
- ABS
Material
When moving heavy loads, you need a low-bed trailer. For this reason, the most suitable material is high-strength steel. Q355, Q550, and Q690 steel sections are commonly used for the basic structure of low bed trailers.
In some places, aluminum is also used as the main structure. The different material types are discussed here.
Q355 (ASMT Grade 50), Manganese Steel
The flexural strength of a material is denoted by Q. Therefore, the stress strength of this material is 355 MPa.
The specifications for low alloy steel are C ≤ 0.20, Mn ≤ 1.7, Si ≤ 0.55, P ≤ 0.035, S ≤ 0.035, and V 0.02 to 0.15. One of the benefits of choosing this material is that it saves money.
Good cutting and welding performance is another advantage of Q355 steel. Many buildings, pressure vessels, automobiles, bridges and ships are made of this material.
Q550 and Q690
Q550 (ASTM Type8 Grade 80) and Q690 (ASTM 100 [690] Type Q) are two types of steel. They are both hardened and tempered high tensile strength steel plates with yield strengths of 550 MPa and 690 MPa respectively.
These materials are used in various applications such as harbor cranes, hydraulic supports, shipyard tractors, and coal mining machinery.
Aluminum
In some places, the main frame of a lowbed trailer is made of aluminum instead of steel. Aluminum is more expensive than steel and has a lower yield strength, but it cuts well.
Since aluminum is lighter than steel, aluminum trailers are also very light. Because of their lightweight, they are not suitable for transporting very heavy loads. Aluminum low bed trailers are best suited for transporting cargo weighing up to 50 tons.
One of the advantages of aluminum is that it does not rust or corrode. But on the other hand, it is not very strong and has poor resistance to wear and tear.
Main Beam
The main beam of most low bed trailers is an I-beam. I-beams have a top plate, a vertical plate, and a bottom plate. Typically, the vertical plates require a punching operation.
Most low bed trailers have two main beams. However, for heavier loads, three main beams are used to make the load more secure. Vertical plates can make the trailer lighter and at the same time make the main beams stronger.
Therefore, you need to pick the right number of beams for your cargo. Trailers with three beams are safer, but they are also heavier and cost more.
To support the trailer, the main beams need to have a high yield strength. This means that Q355, Q550 and Q690 steel are the best choices for main beams, while Q235 steel can be used for other beams.
Landing Gear
The landing gear supports the trailer when it is not secured to the truck. The weight of the trailer is the most important consideration when selecting a landing gear.
Landing legs can support up to half the weight of the trailer. There are two main types of landing gear, one is independently operated and the other is linked.
The landing gear has a gear box that changes the speed at which the trailer descends or ascends. Keep this in mind when using a landing gear.
Do not use the fast mode when the trailer is loaded with a heavy load. Also, make sure the landing is always level.
Kingpin
There are two types of Kingpin: one is 50 mm (2 inches) long and the other is 90 mm (3.4 inches) long. The kingpin is usually made of chrome metal and it is the most durable part of the trailer. It is the most durable part of the trailer because it can withstand maximum weight or pressure.
There are two ways to secure the kingpin: welding or bolting. Welding is the safest way to assemble it.
Because it is difficult to remove the master pin after welding, it stays in place during movement. A disadvantage of welding is that it is difficult to replace the joint with a new one.
Tires
There are two main types of tires used on low bed trailers. These are tires with tubes and tires without tubes. Which tire should you choose for your trailer? To help you make your choice, let’s look at their advantages and disadvantages.
Advantages of Tubeless Tires
- Tubeless tires are better than tubed tires as far as road safety is concerned. Tubeless tires, once punctured, slowly leak out the air they are filled with. Tubeless tires, on the other hand, once punctured, may blow out immediately.
- Tubeless tires have good heat dissipation properties. Therefore, the service life of tires is longer than that of tubeless tires.
- Tubeless tires make the trailer lighter, which means it uses less gasoline. Therefore, choosing a trailer with tubeless tires can help you save on fuel costs.
- These tires don’t wear out as quickly, making them more suitable for long hauls.
Disadvantages of tubeless tires
- Tubeless tires cannot withstand large loads because there is no air in them. Since the tires don’t have enough pressure, they can’t hold a trailer that is too heavy.
- Tubeless tires are difficult and costly to repair.
- tires are less stable when the road is rough.
Axles and Brakes
Axles
Different axles can bear different weights, such as 9T, 12T, 13T, 16T and so on. You can choose the most suitable wheels for your lowbed trailer according to the weight.
In the previous article, we told you everything you need to know to calculate the weight an axle can handle and pick the right one.
There is a type of axle that can steer itself using hydraulic and air systems. Trailers with more than one axle usually use automatic steering to prevent tire wear.
It is important to note that the tires on the back of a multi-axle trailer wear out quickly. Most trailers do not have tires that are capable of steering.
Brakes
There are brakes on the wheels. They usually use either drum brakes or disc brakes. We’ll cover each type in more detail below:
Drum Brakes
Drum brakes get their name from the shape of the brake, which is a drum with brake shoes inside. To slow the wheels down, the brake pads are pressed into the drum.
Drum brakes are inexpensive but do not dissipate heat well. Drum brakes are also inexpensive to repair and maintain. Heavy-duty and low-speed trailers usually use these brakes.
At high speeds or on steep grades, drum brakes decay faster than disc brakes. They do not work as efficiently as disk brakes. Therefore, drum brakes are mainly used on trailers and automobiles traveling at low speeds.
Disc Brake
This type of brake has a disk-shaped metal rotor that rotates inside the wheel. When the driver presses the brake pedal, the caliper presses the brake pads against the disk.
If the pressure is kept applied, the wheel slows down and the car comes to a stop. Disc brakes are more costly than drum brakes.
Since disc brakes are located on the outside of the wheels, it is easy to check for technical problems. Brake pads need to be replaced frequently, which increases maintenance costs. On the other hand, disc brakes dissipate heat well and stop quickly.
Suspension
Low bed trailers usually have four different suspensions to choose from. Here are the advantages and disadvantages of each type of suspension and its features:
Mechanical Suspension
Multi-leaf suspension is another name for this type of suspension. Mechanical suspensions have a set of reaction arms that ensure that the wheels remain flat at all times.
Even if there is a lot of movement, the wheels remain in the correct position. As a result, the mount is very stable and prevents the load from tipping over when moving.
Low-bed trailers with electric suspension maintain the same load distribution when braking. Heavy-duty trailers can use mechanical suspension.
These suspensions perform well and do not cost much. They can also hold a lot of weight and are easy to maintain. Mechanical suspensions work well even when the ground is rough.
A spring mechanism is part of most mechanical suspensions. As the trailer moves, the mechanism reduces the vibrations that hit different parts of the trailer. Reducing the vibration of the parts extends the life of the parts because they don’t wear out as quickly.
Therefore, if you don’t have a lot of money to spend on buying and maintaining a trailer, mechanical suspension is a good option. Compared to other types of suspensions, mechanical suspensions are not very expensive to maintain. Most models of mechanical suspensions do not require much lubrication.
Air Suspension
The main reason why air suspensions are superior to other types of suspensions is that they are lightweight. In addition to this, air suspensions are very stable. When carrying large loads, drivers like air suspensions because they are flexible.
The stiffness of the springs changes depending on the weight of the trailer. As a result, air suspensions make driving easier and better for the driver.
Tires equipped with air suspension last longer and consume less fuel. Thanks to the shock absorbers, the different components are not subjected to vibrations, so they last longer.
There are several types of air suspension that can raise the wheels when the trailer is not in use. The driver can change the height of the suspension depending on the ground conditions and the weight of the cargo.
The driver can also change the height when the trailer is empty. Keeping the height lower helps the driver keep the trailer stable when it is fully loaded.
The lower height also makes the vehicle easier to steer and maneuver. Air suspensions can handle different types of ground.
The biggest problem is that air suspensions are costly. All of this means that trailers with air suspensions cost more than other trailers.
Rigid Suspension
Due to their construction, rigid suspensions are sometimes referred to as dual-vibration bogies. This type of suspension is one of the oldest and simplest types of suspension used in trailers.
Heavy-duty low-bed trailers typically use this type of suspension. Rigid suspensions are also used for low-speed transportation. With rigid suspensions, the movement of one wheel depends on the movement of the other wheels.
Although most new lowbed trailers have wheels that move independently of each other, some manufacturers still build trailers with rigid suspensions.
For some manufacturers, reverting to rigid suspensions is the best option because they are inexpensive and easy to maintain. Rigid suspensions are easy to install and don’t require much maintenance.
Rigid suspensions are strong and can hold a lot of weight. Therefore, heavy-duty low bed trucks can use them. The shock absorbers of rigid suspensions are strong enough to withstand large axle movements.
Rigid suspensions are associated with better wheel alignment and stability. Since the wheels always stick straight out of the road, the driver always has control of the trailer. Tires last longer because the wheels have a good grip on the road.
The biggest problem with these suspensions is the poor damping. The driver is also unable to change the ride height when the trailer is empty or fully loaded.
Single Point Suspension
Heavy-duty step beam suspension is another name for this type of suspension. Single-point suspensions can hold up to 100 tons of weight.
Because of this, these suspensions are a good choice if your company needs to transport large amounts of bulky cargo. Trailers that are used to carry large loads usually have this type of suspension. Single-point suspensions can handle a lot of weight and are also very good at dampening vibrations.
Single-point suspension keeps the trailer’s components from vibrating too much. This prevents the parts from wearing out quickly and makes it more comfortable to drive on rough ground or roads with more bumps. The main problem with them is that they are expensive.
The type of suspension used in low bed trailers depends on how much weight they can carry. For example, most regular low bed trailers use mechanical suspensions. Heavy-duty trailers, on the other hand, require a suspension that can handle the weight of the cargo.
Ramps
Ramps are devices that move items on a low bed truck. How long the ramp is depends on how much stuff is on it. To move heavy cargo on a trailer, a longer ramp is needed.
When using a longer ramp, there is less of a slope, which makes it easier to move heavy loads. When picking a ramp, you should consider how heavy the cargo can be at most.
Mechanical ramps and hydraulic ramps are two common types of ramps.
Mechanical Ramps
Mechanical ramps are lifted to the proper height through the use of a manual mechanism or spring. These ramps are inexpensive, simple to operate, and easy to maintain.
However, they are difficult to use, especially when handling heavy loads.
Hydraulic Ramps
This type of ramp uses hydraulic cylinders instead of springs to lift. Using a hydraulic ramp is quick and easy.
Hydraulic ramps facilitate quick handling of heavy loads. Of course, hydraulic ramps are more expensive than mechanical ramps.
ABS
For safety reasons, close attention should be paid to the anti-lock braking system when purchasing and maintaining a trailer. lowbed trailers are primarily used for moving heavy loads.
Heavy trailers are more likely to cause car accidents than other vehicles on the road. Fatal accidents can occur if the wrong anti-lock braking system (ABS) is selected.
The most recognizable brand of ABS in the world remains Wabco, and the brand is successful because it is very safe. With ABS models, trailers can still move when the emergency brake is set.
ABS also shortens and improves stopping distances, making cars safer in emergencies.
When the car is traveling fast, the ABS sensor watches the wheels turn. On the other hand, when the wheels are not turning, the sensors tell the driver to lower the brake pressure. In this way, the wheels will stay in motion.
The controller will also keep the wheels suspended in a horizontal plane so that they don’t slide to one side. As a result, the driver can take control of the car and make sure that it is traveling in the right way.
2.3 The Manufacturing Process
We don’t manufacture low bed trailers, so why do we need to know about the manufacturing process? Should you base your decision on the trailer’s component parts and inspect the final product?
Understanding the manufacturing process is very important because it can help you determine whether the trailer you buy is of good quality or not. Some small workshops cut corners and skip some important steps in the making process to save time. If you are familiar with the manufacturing process of a lowbed trailer, you will be able to confirm whether you can purchase it or not.
The main steps in the fabrication process are described below.
Cutting and Punching
A CNC cutting machine is used to cut steel plates such as webs, reinforcement plates, and the parts that go with them. This means that this machine can cut all the steel plates needed to make a complete low bed trailer.
Punching is important because it makes the trailer lighter and less stressed. On top of that, punching adds strength to the cross member, making it stronger.
Bending and Straightening
After cutting the steel plates, the next step is to bend them according to the drawings. Every step in the fabrication process starts with the finished drawing.
Therefore, it is important for fabricators to follow the dimensions and shapes determined on the drawings when bending the steering gear. The parts are held in place with jigs to ensure that they are straight and upright.
During this step, the accuracy of the plates is checked by measuring them to make sure they are the right size, straight and plumb.
Jointing and Welding
The main beams, cross members, spring supports, and floor are all parts of the trailer that need to be welded. Welding is a very important step in the fabrication process.
Welding must be done correctly so that the finished structure is strong enough to carry heavy loads. The main beam is called the I-beam and the welding begins with it, then the welding of the side beams begins.
When welding, the fabricator must make sure that the two or three main beams are straight across. The two points on the side of the plate must be completely welded so that the plate and the beams are strong enough.
A submerged arc welder is typically used to join the main beams. The welder also has to weld the beams, steel plates, attachments, and other parts together. Therefore, high-quality welding requires skilled welders.
The use of bolting is another method of putting the beams together. Since it is divided into modules, some countries prefer this method.
In addition, it is easier to replace beams with bolting than welding. Because bolting does not require welding, manufacturers do not have to worry about heat distortion. Compared to forging, bolting is a faster and easier way to join beams.
Repair Welding and Reinforcement
When beams and plates are all welded together, manufacturers must check that critical areas are secure. When heavy components are joined together, some of the joints may come loose.
Therefore, a thorough inspection is required before the trailer leaves the factory. Repairs, welding, and reinforcement are then carried out based on the results of the inspection.
Cleaning and Sandblasting
Cleaning and sandblasting is the final step in the process of making a low bed trailer. The purpose of this step is to ensure that all surfaces are smooth before painting.
This step is also necessary to spread out the stress concentrations in different parts of the trailer, as well as to allow the paint to adhere better.
Paint Spraying
After cleaning and sandblasting, the next step is painting. Only smooth surfaces look good when painted.
So if you see chunks of paint on the surface of your trailer, you know that the company that built it skipped or rushed through the smoothing process.
To prevent paint chipping, you should use quality paint. Low bed trailers are meant to carry heavy loads, so cheap paint is at risk of peeling off when the trailer is loaded with cargo.
Installing Other Components
Assembling all the other components of the trailer is the final step in the fabrication process. During the fabrication process, the larger components are made first, followed by the smaller ones.
At this point, the tires, electrical system, suspension, lights, anti-lock braking system, and wheels are put in place. The quality of these parts is very important because they affect the strength and utility of the low bed trailer.
If low-quality parts are used, you will have to pay high repair and maintenance costs. Keep in mind that some trailer parts are welded into place and are difficult to replace. To minimize maintenance costs, a good manufacturer will use quality parts.
After learning about the entire process of making a lowbed trailer, you can look at the individual parts of the trailer to see if the manufacturer skipped any steps.
You can also use what you have learned to find out what problems the trailer may be creating without the help of a mechanic. You can also figure out how much it will cost and how long it will take to repair the trailer. For example, if welded parts have worn out, you determine the cost and time to repair the trailer based on the information you learn.
2.4 How to Select a Quality Supplier
Picking a quality supplier is important because the quality of the low bed trailer will depend on the manufacturer. Thoughtful suppliers will take the time to inspect all parts of the trailer before selling it.
It is important to be careful when picking a supplier because some suppliers buy trucks from manufacturers and then sell them as their own.
You may buy a bad product without checking it because of the way the seller markets it. This article will help you pick the best company to buy low bed trailers from.
Consider the Cost
Price is one of the most important factors to consider when buying a low bed trailer. Make sure that you set a budget before buying. You now know the pros and cons of the different types of parts and how much they cost to maintain.
Parts that are of higher quality and last longer cost more compared to common parts. However, some sellers ask for exorbitant prices even for common parts.
Check prices for the same trailer at several different vendors before deciding to buy. Most suppliers now have online stores where you can check prices.
It is sometimes cheaper to buy from a manufacturer that makes heavy duty vehicles. By comparing prices, you can tell if the seller’s product is reasonably priced.
Stick to High-quality
We’ve already said that price is a big deal when buying a low bed truck. But you should consider more than just the price of the trailer.
Understanding the different components and how they are manufactured will help you determine if the company makes a high-quality product. Some companies do a perfunctory job in the manufacturing process and then sell them for a lower price.
If you want to save money, don’t skimp on the quality of your trailer. You may be able to get a simple, inexpensive trailer now, but you’ll soon have to get a new one.
Plus, even if it’s inexpensive at first, repairs and maintenance can be expensive. Therefore, be sure to find a good balance between price and quality. For your business, you need a trailer that won’t break down often and will last for years.
Check the Certification of the Supplier
An important thing to do to determine if a supplier is trustworthy is to check their certifications. Before a supplier is given a certificate, certification boards and officials check the quality of the goods they sell.
Most vendors will advertise that they are certified. The next thing you need to do is to make sure that the seller has a good-quality certificate.
Many of the large certification organizations include ISO, ADR, DOT, CCC, BV, SGS, and others. They sell lowbed trailers and have licenses from these boards. Check to see if the certification is still valid. You can find out about a supplier’s certification online.
Awards and Recognition
In most countries, top companies are recognized each year at an “annual event” for the quality of their goods or services. Sometimes only the best companies receive awards.
In some places, the organizing committee makes a list of the best companies. When looking for suppliers, look most closely at companies that have been recognized as the best in their country and globally.
Check the committee that gives the company the award. If a company has won awards for making or supplying the best heavy-duty vehicles, you can be sure that the trailer you buy will last.
Take a Field Trip
In order to get you to buy their goods, vendors will talk to you in a very convincing manner. In fact, the salespeople they hire most of the time lie about video details.
Even if they know the quality of their product is not good, they will tell you that their product will work better or carry more weight. Don’t believe everything you read or hear. Test the trailer or watch how the vendor’s trailer works before you buy.
Anyone who works in construction or transportation and uses low bed trailers is welcome to show you around. Find out how they have used the trailer before.
People who have already purchased and used the product are a better source of information than the vendor. Make sure you also read the seller’s reviews online. Some customers prefer to talk about their experiences online.
Comply with Industry Standards
There are rules and standards in every field to ensure that businesses provide quality products to their customers.
There are additional rules and standards that a business must follow before placing its goods on the market. These rules and standards are set by national and global organizations.
If a supplier follows industry standards, it means that they are following the quality standards of that business. In this case, the guidelines specify the maximum dimensions of the trailer.
Weight, height, and width should be allowed and the supplier should follow these standards. If the trailer has a lower bed, one should find out if there are any quality guidelines in the country where it is manufactured.
The right supplier should be prepared to comply with all rules, laws and regulations when manufacturing and distributing trailers.
Customized Trailers
Sometimes the type of low bed trailer will not meet your needs. You may not be able to transport the cargo you need because the deck is too short or too wide. You need a customized plan just for your business.
The best trailer manufacturers don’t just make one type of low bed trailer. They will also modify the trailer to fit the needs of the customer. Nonetheless, customized trucks must not exceed the size allowed by state law.
Therefore, when checking out the trailers offered by the seller, ask about the possibility of getting a trailer customized just for you. The price of the customized model can help you decide which one to buy from the many models available in the market. The same high-quality standards should be applied by the company manufacturing the customized trailer.
We have told you the most important things to consider when picking a seller. You should learn as much as you can about the vendor before you buy something from them.
Before ordering a trailer, make sure you see someone who is using a similar trailer. Allowing enough time to find the best video is the best option. You need time to study the site and look at the parts.
You may not always have an engineer on your side to help you make your choice, but this guide provides all the information you need.
For a detailed guide on where to buy a low-bed semi-trailer? Get professional buying advice
Chapter 3: Quality Control for Low-Bed Trailers
What we learned in the last chapter is that you need to buy a quality lowbed trailer for your business. Purchasing this type of trailer will make everything run smoother and save you money on repairs. However, it’s also important to make sure that the trailer is always running at its best.
However, this can only be done if you know how to drive a low bed trailer. As part of quality control, the performance of different components is checked. This chapter will talk about the most important components that need to be checked. Below we describe how to perform quality control.
Checking That the Surface Is Non-slip
The appearance of a trailer surface depends on how it is polished and sandblasted. To avoid trailer surface rust, always check the surface of your trailer before you buy it and when you keep it in good condition.
Make sure the trailer surface is rough to slow down the rusting process. If the surface is slippery, it will likely wear down and rust. The effectiveness of the sandblasting process depends on whether the surface is rough or smooth.
You can tell if the manufacturer is following the process as it should be by looking closely at the surface of the lowbed trailer.
Check the Fasteners
The main purpose of checking the screws is to make sure that all of them are tight. If the fasteners on the structure of the trailer are loose, it could be because they were not installed correctly or because the measurements are off.
Therefore, you need to figure out if the fasteners need to be tightened or replaced with the right size fasteners. The bolts must be tightened in order for the trailer to be strong and stable, especially when fully loaded.
Check the Welding
It is very difficult to weld all the cross members and steel plates together. Many experts skip this step. Therefore, you need to be careful when looking at the welded joints and parts.
The parts being welded together should all be smooth and identical. Because heat changes shapes, welding may leave some rough spots. Make sure that all parts are free of rough edges.
When inspecting welded parts, also look for cracks and holes leading into neighboring beams. If you are not careful during the welding process, the person who made something could damage the steel plate or crack it. These changes can reduce the strength of the beams.
You should also look for joints or parts that are not welded. The manufacturer may have skipped some seams during the fabrication process, which will limit the trailer’s weight capacity.
The most important part of the fabrication process is the welding. The WPS (Welding Process Specification) is a strict regulation that ensures that trailers remain high quality. It describes each step of the welding process in-depth and documents the parts that are welded by different welders.
Checking the Cross Member
It’s not enough to connect the cross members correctly. You need to make sure that all cross members are straight. Check that the top, center, and bottom plates of all main cross members are straight and plumb.
You may ask why it is important to check that the crossbeams are straight. If the cross members are not straight and in the right position, the stresses will be uneven.
If the plates aren’t straight and the cross members aren’t straight, they can easily crack or break. You may need some measuring tools when checking the crossmembers.
Inspecting the Axles
Inspecting the wheels is another important part of quality control. When inspecting the joints, you will need to see how parallel and perpendicular each joint is.
All axles should be aligned and have the same centerline. When checking the wheels, make sure the tires are in the correct position. Once the axles are in place, you can easily mount the tires and keep the trailer stable.
Testing the Load
The manufacturer of every trailer will tell you how much weight it can carry, but you can’t rely on that alone. You need to inspect the trailer to see if it can carry the maximum weight the manufacturer says it can.
Check the process of putting the load on the trailer and make sure the ramps are working properly. If the trailer can carry the weight that the manufacturer says it can, then it should be easy to load and move large items with it.
Chapter 4: Low Bed Trailer Drawings
In the previous article, we learned about the different components of a low bed trailer and how to inspect them. Next, you will see how all the parts of a low bed trailer fit together.
This section has pictures of different types of low bed trailers, such as regular low bed trailers, low-loaders, and RGN trailers. This section will also show some photos of trailer sizes and sketches of different parts.
Low Bed Trailers
Standard low bed trailers are used in many countries because they are cheap and can hold a lot of weight. The picture below shows a regular lowbed trailer with four axles. The picture also shows how large some of the components are.
RGN Trailer
Below is a schematic drawing of an RGN trailer:
Size of Low Bed Trailer
What size low bed truck you need depends on the type you choose. Manufacturers can build trailers of any length and width to suit the customer’s needs.
However, there is a limit to the size that the manufacturer cannot exceed. Keep in mind that legal restrictions depend on state regulations. However, most manufacturers use the above-mentioned dimensions.
The right supplier of low bed trailers should comply with government regulations, which we have already talked about. When it comes to assembly, the manufacturer cannot exceed the legal width, height, and weight limits.
If you are ordering a customized low bed trailer, the company that manufactured it must adhere to the legally required dimensions.
Chapter 5: Low Bed Trailers from China
Many people think that everything from China is of bad quality. Therefore, they are reluctant to buy heavy vehicles or their parts from China.
Many transportation companies do not trust Chinese companies, even if they promise good quality. What makes people think that China only makes and sells bad-quality goods?
When you buy a lowbed trailer from China, should you be concerned about its quality?
5.1 Are Trailers Made in China Low Quality?
The truth is that China does not have very strict rules about the quality of its goods. This is because the market is the way it is now. Manufacturers produce products for certain sectors.
The low end of the market is the target market for most stores that produce vehicles, even heavy-duty ones like low bed trailers. Many people know they can buy cheap from China, so there is a high demand for low-end products.
As a result, companies focus on this market to make money by producing less high-end goods.
Although there are no strict quality standards in China, this does not mean that all manufacturers produce poor-quality products. Some manufacturers even produce products for both the high-end and low-end markets.
Buyers pick the quality of goods based on how much money they have. Many people don’t realize that Chinese companies produce OEM (original equipment manufacturer) products for large companies in developed countries.
Companies in South Korea, Australia, and Japan buy such equipment from Chinese companies.
5.2 The Future of China's Development
Starting in the near future, unique Chinese transportation equipment will be able to reach more people. Low bed trailers and modular trailers are some of them.
Chinese manufacturers are shifting from producing cheap goods to producing parts and machines for large global companies. Because of this, the world market will soon be flooded with good products from China.
China will no longer be known as a source of cheap goods; instead, it will be known as a top source of high-quality heavy-duty vehicles. Here are some of the factors that will lead to this change.
- In China, the transportation industry is growing very rapidly. This means that the quality of vehicles in China will get better and better. Heavy-duty trailers and semi-trailers are two examples. To meet the expected growth in demand for heavy vehicles in China, more companies will enter this transportation sector.
- Currently, some manufacturers are already producing heavy vehicles with good technical capabilities. China is also the birthplace of CIMC, one of the most famous types of straight trailers.
- Over the years, automobile manufacturers in China have been trying to improve their final products. Currently, most factories are working on developing new technologies.
- China has a huge market for heavy trucks, including markets in other countries. This market makes a lot of money for the manufacturers. The money earned is enough to increase production and make China a world leader in providing high-quality vehicles and components.
- More and more Chinese OEMs are starting to work with companies outside of China. As a result, industrial technology is changing rapidly. In order to keep up with world standards, factories are adopting the latest technology in their production methods.
As China develops and new technologies emerge, the transportation business will continue to grow. Because of this, you shouldn’t rule out Chinese suppliers if you’re looking to buy a low bed trailer or other heavy-duty vehicle.
Soon, China will surpass some of the countries that have been making the best heavy-duty trucks. As mentioned earlier, some Chinese companies, already make and sell powerful and quality trailers.
Chapter 6: Considerations for Use
In the previous article we learned how to pick the best low bed trailer and seller. Before you buy, you can look at all the parts to see if the correct manufacturing steps were taken.
After purchasing a trailer, the next step is to learn how to use the trailer and keep it in good condition. All of the parts of the trailer and its longevity depend on how you use it.
Many companies will instruct you on how to maintain the components. Because of this, they only provide information on how to repair damaged parts. Next, let’s learn how to properly use a low bed trailer.
6.1 How to Back a Low Bed Trailer
If you know how to drive a heavy-duty vehicle, then driving a trailer probably isn’t that hard. If you want a low bed trailer, you probably already know how to drive a long vehicle.
If you haven’t driven a trailer yet, you should take a driving course before trying to drive one. Trailers are different from regular cars when it comes to balance, control, and agility.
However, one of the hardest things to do when you’re driving a low-bed trailer is to back into a certain position at a certain angle.
It’s easy to back up in a yard or open space. However, sometimes you need to back up between cars without hitting them. Here are some safe ways to back up a low bed trailer:
Prepare to Back
The first thing you need to do is prepare to move the trailer into place. The windows should be rolled down so that you can see where the other vehicles are.
It is important to adjust the mirrors so that you can see the entire position. Use each mirror to check the position of the trailer and make a plan for how to back it up. If you still don’t know how to back up properly, keep reading.
Get a Helper
Side and rearview mirrors may not allow you to see everything behind the trailer. Have someone else look at the trailer for you when you park to make sure it doesn’t move.
The only difficulty with this plan is that the spotter will have to yell at you for instructions. Remember, low bed trailers are long.
Turning the Trailer
If you want the trailer to go left, turn the wheels to the right. If you want the trailer to go right, turn the wheels to the left.
Adjust yourself so that you can catch the spinning wheel and turn the wheel to see the front and back of the trailer. As you turn the wheel, look at the position of the vehicle in front of you.
Remember that the trailer is moving with the help of the bottom of the steering wheel. If necessary, turn the steering wheel to the corner you need to go around.
Backing Up to the Driver's Side
The driver’s side is the best position for backing up a trailer. The controls on the passenger side are difficult to master. Pull the trailer into the designated position and turn right in the middle of the road.
Remember, right angles are the most common way to back a trailer. Turn the trailer sharply to the left until your left side is facing less than 180 degrees.
Backing Up
Hold the bottom of the steering wheel with both hands and turn the trailer around. Make sure you keep your eyes on the mirrors and adjust the steering wheel so that the trailer is facing in the right direction.
Back up slowly, no matter how much pressure someone puts on you. Slowly backing up makes it easier to control the trailer and avoid damage.
If Needed, Pull Forward and then Back Up Again
You won’t be able to master the first few turns. It’s hard for a novice to back up. If necessary, leave the trailer and check your progress.
You can keep moving the trailer back and forth until it stops in the right place. If there is a spotter on the scene, pay attention and follow his directions. If you listen to a lot of people, you will get lost.
Starting with a blank space is the best way to learn how to back a trailer. Do the long one first, then the small one. When you make a mistake, a long trailer is easier to remedy than a short one.
Once you know how to back up in the open, you’ll be able to back up between other vehicles without damaging them.
6.2 How to Prevent Rapid Tire Wear
All parts of a trailer can cost a lot of money to fix if not used properly. Most trailer users report that tires wear out quickly.
Trucks with more than one axle are more problematic because their tires wear out faster than those of other trucks. As stated earlier, if you want to drive a multi-axle trailer, you must have an axle lift.
The rear tires on a multi-axle trailer wear out faster than the front tires. Rear tires are used more and wear out faster. Therefore, you will need to purchase the lift feature when you purchase the trailer.
If you get new tires every other week, then you should check the alignment of the trailer wheels for proper alignment.
Unaligned wheels are one of the main reasons why tires wear out fast. You can use a straightedge, tape measure, or anything else that is straight to make sure the wheels are aligned.
Place a straightedge on each tire to see if there are any bulges. When using a straightedge or something else that is straight, check the gap between the bumps. If there is a large gap, these tires can cause the trailer to slide on the road.
As a result of slipping, the trailer generates heat as it travels. When the tires slip, the friction increases, which causes the tires to wear out quickly. For this reason, axle balancing should always be checked before loading a trailer for a long trip.
As we’ll talk about later, this should be part of regular maintenance. However, you will also need to lift the tires and make sure the axle is straight before the next maintenance date.
6.3 Never Overweight
Low bed trailers are used to carry heavy tools and machinery. The beams have the potential to hold the weight of such loads. However, each type of trailer has its maximum load weight.
Before you buy it, the trailer manufacturer will tell you the weight it can handle. Do not exceed this limit or you may break the crossmember. Once a crossmember breaks, it will cost a lot of money to replace it.
Remember that welding is part of manufacturing the item, as we learned earlier. Once a cross member is welded in place, it can be difficult to remove it.
If a worker is not careful, he or she may damage the cross member next to it. To avoid damage and hard work, don’t load more than the trailer’s recommended carrying capacity.
If you follow the manufacturer’s recommendations for the trailer’s load capacity, the trailer will last longer and work better.
Chapter 7: How to Maintain the Different Parts of Your Trailer
Many people who own trailers pay drivers and mechanics to maintain their trailers. If you don’t know how to do it yourself, you can hire a professional to maintain your trailer. However, this is not a good idea for a low bed trailer. You don’t always have an expert on hand to check on the trailer when it starts to break down. You may have to drive the trailer when it is parked in the middle of the road.
Without knowing how to keep the different parts in good condition, you won’t be able to figure out why the trailer broke down. Mechanics may also cut corners when the trailer is regularly serviced. They may not repair worn-out parts or replace them with cheaper parts. You should not only call an engineer or experienced mechanic, but you should also inspect the trailer yourself.
In Chapter 2, we learned how to inspect the parts of a low-bed trailer before you buy it. Because the parts wear out as you use the trailer, the parts won’t stay in perfect condition. However, you can minimize wear and tear by maintaining each part according to the manufacturer’s requirements. In this chapter, you will learn how to maintain some of the most important parts.
Maintaining Tires
When maintaining your tires, inflation is the most important thing to check. Carefully and regularly check the tires on your low bed trailer. Purchase a pressure gauge that you can trust to give you an accurate reading of the inflation level.
Check the inflation after the tires have cooled down. At the heaviest load a low bed trailer can carry, the tires can be inflated to the maximum atmospheric pressure limit. However, this limit should not be exceeded no matter how heavy the load is.
Use valve stem caps to maintain air tightness at all times. Valve caps also help keep dust and moisture out. Even if a tire is properly inflated, its sides may bulge.
Bulging is caused by low tire pressure, which is the worst-case scenario for trailer tires. After checking and inflating your tires, check the pressure again within 48 hours. To avoid crashes, don’t forget to inflate your tires in a safe cage.
Due to the increased temperature, the tire pressure will rise when using the tires. It is possible for the pressure to rise as high as 10 or 15 psi. such a high pressure means that the tire is underinflated, overinflated, or the wrong size.
High pressure also indicates that you are driving too fast. When several of these conditions occur at the same time, it can cause inflation to exceed healthy levels.
Always make sure that all drive lines have the right size tires and that the load remains within the specified limits. Don’t drive too fast, especially if the trailer is fully loaded.
Make sure the axles are aligned in place. If the wheels are not properly aligned, it can make the road rougher. Because of this, tires wear out faster and more severely.
You know the reasons why tires are under or over-inflated. Make sure you fix the problem before you travel. Don’t rely on past inflation records.
Air pressure should be checked with a good gauge before each transport or at least once a week. When checking your tires, don’t forget to look for cracked, warped, and rusted rims.
In other words, if the rims are bent or cracked, don’t weld them. Instead, repair the rims the way the manufacturer tells you to. If you weld a broken rim, you may cause more damage to the tire and wheel.
Screws and bolts
The nuts and bolts on your wheels were tight when you purchased them. However, after a few heavy-duty trips, the bolts and nuts loosen. An expert may have chosen the wrong size of fasteners, causing them to look loose.
Therefore, when replacing nuts or bolts, make sure each part is the correct size. Check the bolts often, especially after a long haul. A fully loaded trailer is not as solid and sturdy if the fasteners are loose.
If any screws are broken or missing, they should be replaced and the recommended torque values for each should be maintained. The correct torque values for each type of bolt and nut can be found in the manufacturer’s manual.
Before tightening any loose pivot bolts, make sure the bearings are properly aligned and also check the bolts.
Landing Legs
The landing legs support the trailer when it is not attached to the truck. Usually, the legs are welded in place when the trailer is assembled.
Check the legs for cracks or breaks, paying particular attention to the parts that are welded together. If there are cracks, they will need to be repaired by welding and reinforcement. If any of the welds on the landing gear are bent, it won’t be able to support the weight.
Brakes
Checking the braking system is very important because it can save your life. If the trailer is heavy and the braking system is not good, then driving the trailer can be very dangerous. Air pressure is the most important part of the braking system to check.
Check the brakes to make sure there are no air leaks and also look for worn or misaligned pivot pins. Since the holes in the pivot pins on the brake shoes wear out quickly, they need to be checked frequently.
The shoe reset springs should be replaced during general maintenance of the braking system. If the trailer has drum brakes, the drums should be inspected for cracks or damage.
Brake pads are another important component to check. Check that the brake bags are filled with oil or grease and are not torn. Make sure the nuts on the pads are not loose.
If the brake pads are full of lubricant, they should be replaced with new ones. You cannot fix the problem by cleaning the lubricant. You should check your brakes as often as possible for safe driving.
If there is a problem with the braking system while the trailer is being driven, the system needs to be checked immediately. Then fix the problem for it. You should not drive a lowbed trailer until the braking problem is fixed.
Conclusion
Low bed trailers are used to carry the biggest and heaviest things. Low bed trailers are most commonly used to transport heavy vehicles, rail cars, construction beams, windmill parts, and other heavy equipment. The great thing about lowbed trailers is that they are very stable, safe, flexible, and can carry tall items.
Different types of trailers come in different sizes, numbers of beams, and axles. Before purchasing a low bed trailer, you should consider the weight and volume of your cargo, as well as the price, maintenance costs, future needs of your business, and how you will load the trailer. The most important parts to check when buying a trailer are the ramps, materials, tires, landing feet, wheels, roof, braking system, and anti-lock braking system.
Low bed trailers come with different kinds of suspension systems such as mechanical, air, single point and rigid. Different suspension systems can handle different loads and work in different ways. To choose the right type of low bed trailer, buyers should understand how they are manufactured. Steel plates are cut and punched, bent and straightened, welded, repaired, and reinforced. These are the main steps in the fabrication process. Cleaning, polishing, sanding, painting, and assembling all the necessary parts are the final steps.
The best place to buy a low bed trailer should be fairly priced, of high quality, and comply with all state regulations. Also consider the supplier’s licenses, awards, and ability to manufacture unique lowbed trailers. Cross members, axles, fasteners, and surface and weld inspections are the most important parts of the quality control process. When China is mentioned, most people think of cheap goods. However, if you follow this guide, you should be able to find trustworthy sellers and buy good lowbed trailers from China.
