Bulk Cement Trailer Structure & Working Principle

Cement tanker trailers are specialized vehicles. They are designed to safely and efficiently transport various powdery materials. These materials often include cement, fly ash, talcum powder, and other similar substances. They are prone to spillage, dampness, and pollution. Using these trailers significantly improves transport efficiency, reduces transport costs, and minimizes product wastage.

Next, we’ll explore the Bulk Cement Trailer Structure & Working Principle in more detail in this article.

Detailed cement tanker trailer structure diagram

Table of Contents

Detailed Structure of Cement Tanker Trailers

Multiple critical components compose a cement tanker trailer, with each component playing a vital role in its operation.

  • Semi-Trailer Chassis: Provides the fundamental support and mobility for the tanker.

  • Tanker Assembly: A robust container that securely holds the powdery materials.

  • Pick-Up Drive System & Unloading System: These systems work together to load and unload the materials efficiently and safely.

  • Driving Device: Powers the movement and operation of the trailer.

  • Air Circuit and Control System: Essential for regulating the flow and discharge of powdery substances.

  • Accessory Devices: Various additional tools and devices enhance the functionality and safety of the tanker.

Bulk Cement Trailer -Bulk Cement Trailer Structure & Working Principle

How Bulk Cement Tanker Trailers Work

Bulk cement tanker trailers use compressed air to transport powdery materials out of the tank. This happens through the pressure difference inside and outside the tank. When working, power is drawn from the automobile gearbox. The transmission device drives the air compressor to generate compressed air. The compressed air enters the air chamber through the control pipeline. It then enters the powder layer through the fluidized bed to fluidize the powder. After fluidization, the powder’s angle of repose decreases. The fluidity increases. A liquid-like flow appears on the fluidized bed. It flows to the discharge port, achieving rapid discharge.

Exploring the Types of Bulk Cement Trailers

Bulk cement trailers are available in various designs to suit different transportation needs:

  • Flatbed Cement Trailer: Ideal for transporting cement bags, featuring an open loading platform without moisture-proof capabilities.
  • V-Shape Cement Tanker Trailer: Perfect for transporting powdery substances, thanks to its V-shaped closed tank with excellent moisture-proof features.
Bulk Cement Trailer -Bulk Cement Trailer Structure & Working Principle

Benefits of Using Bulk Cement Tanker Trailers

  • The tank has good sealing, moisture-proof, and water-proof ability
  • Fast unloading speed and sufficient conveying distance and conveying height.
  • Clean unloading, with the residual rate not exceeding 0.3 percent of the total vehicle mass.
  • The structure of the tank material can meet the requirements of use, very suitable for long-distance transport.

Maintenance Practices for Cement Tanker Trailers

Air compressor: Carry out maintenance in strict accordance with the specifications in the manual, and unauthorized operation is strictly prohibited.

Power take-off: Regularly check the lubrication and operating conditions, and deal with any abnormal noise as soon as possible; gear bite and wear should also be checked and maintained regularly.

Airpath: The sealing condition should be checked frequently, and if there is air leakage, it should be eliminated in time; the working condition of each valve should be checked frequently, and if it fails, it should be repaired or replaced; the safety valve should be opened when the pressure is 0.2Mpa, and the pressure in the tank should not exceed 0.2Mpa. MPa.

Tank: Regularly check whether there is air leakage in the welds of the tank. If this phenomenon is found, repair welding should be carried out in time. During the rainy season, pay close attention to the status of the tank lid and sealing rubber ring to avoid gaps in the tank lid causing rainwater to flow into the tank, which will cause the cement to agglomerate and affect the dusting efficiency.

Detailed panoramic view of cement tanker trailer

Ensuring Operational Safety

  1. Before opening the feed port each time, you must open the pressure relief valve and the air inlet pipe ball valve to remove the remaining air in the tank to avoid injury accidents.
  2. Always pay attention to whether the pressure gauge is working properly to prevent the pressure gauge from malfunctioning and causing overpressure in the tank.
  3. Check the safety valve frequently to ensure that the pressure relief begins at 0.2Mpa, and the pressure in the tank must not exceed 0.2Mpa.
  4. Always check whether the operating meter is working properly to avoid overshooting and damaging the air compressor and power take-off box.
  5. Always listen to the sound of the power take-off box and the air compressor rotating. If there is any abnormal sound, stop the machine immediately to troubleshoot.


Bulk cement tanker trailer plays an important role in the engineering and construction fields with its fast unloading method and protection of dry cement. In addition the use of cement tanker trailer can reduce the pollution of the environment, which is good for people’s health. It can also protect the ecological balance and save resources and energy.

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