Understand the operation norms of rear dump semi- trailers
Operating Guide for rear dump semi- trailers
2025-07-23
In the construction and transportation industries, Rear-Dump Semi-Trailers have gained widespread acceptance. They play a crucial role in the efficient transportation of aggregates such as sand, rocks, and gravel. Their design optimizes the loading and unloading processes, thereby enhancing the overall operational efficiency. This guide provides a comprehensive overview of Rear-Dump Semi-Trailers, covering their functions, advantages, and application scenarios in the industry.
1. What is semi tipper trailer?
The semi-trailer dump truck (also known as the dump semi-trailer) is a specialized engineering transportation vehicle equipped with a hydraulic system. This system is powered by the tractor and is used to lift the trailer body and unload the cargo. We commonly use such trailers in the construction and transportation industries. They are used to transport large quantities of loose materials, such as sand, gravel, asphalt, construction waste, coal, etc. The semi-trailer dump truck itself does not have driving power and needs to be connected to the tractor to move.
The key component of the dump semi-trailer is the hydraulic cylinder. When loading large items, the lifting arm will rise and tilt the hopper at a 45-degree angle, allowing the goods to slide down to achieve the purpose of unloading. Usually, the load capacity of this type of dump semi-trailer ranges from 30 to 100 tons. In terms of efficiency, it can save over 90% of the unloading time, reduce labor and handling costs, and be suitable for working in harsh environments.
2.1 Type of semi tipper trailer--Rear Tipper
As you see,The rear-dump semi-trailer is a professional engineering transportation equipment. It achieves efficient material unloading through the tail unloading door. This unloading method has a narrower export but is equipped with a material splash guard to prevent material splashing. Usually, the rear-mounted tilting trailer is used for transporting various construction materials, such as rocks, sand, stones, and even coal.
During operation, the hydraulic cylinder provides force to lift the front end of the dump truck, and the goods will slide down by gravity. Because the dump truck is made of high-strength steel, it is wear-resistant and scratch-resistant. This unloading method is more convenient and can significantly save your labor costs (you don't need to hire people to unload).
It is worth mentioning that the rear dump truck is a semi-trailer that is very suitable for transporting goods with a large dumping angle. The maximum length of the rear dump truck is 12 meters, which is suitable for goods with a large dumping angle.
2.2 Type of semi tipper trailer--Side Tipper
The side-discharge dump semi-trailer is a type of transportation vehicle specifically designed for efficient loading and unloading of bulk materials. It is widely used in industries such as construction, mining, coal, and sand and gravel. Its core feature is the side-tilting discharge design. Compared to rear-discharge dump trucks, it can operate flexibly in restricted spaces and improve loading and unloading efficiency.
The core design of the side-discharge semi-trailer is centered around the hydraulic lifting system and the lateral tilting and flipping structure, ensuring safe and efficient unloading of bulk materials.
The reason for adopting this design is that sometimes the construction materials may be too large to pass through the rear door, and the unloading area may be too small. Moreover, the inclination angle of the side dump truck is smaller. The side dump truck trailer can help us load more goods.
Compared with traditional rear-discharging dump trucks, side-discharging semi-trailers demonstrate superior performance in terms of flexibility, efficiency and adaptability. The side-discharge dump semi-trailer achieves this through hydraulic side-reversal and a high-strength structural design. It overcomes the problem of traditional rear-discharge vehicles' reliance on space, and is particularly suitable for restricted environments, precise loading and transportation of heavy and loose materials. It is an efficient solution for modern engineering transportation.
3.1 Types of Tilting Systems--Direct-Push Type
The direct push-type side-pulling unloading mechanism offers a simple solution for unloading. The operation process is straightforward: raise the trailer, and the goods can slide out easily. The integrated traction device in the bed plate can quickly and easily retract the unloading device after unloading is completed.
This system is equipped with a guide rod for stabilizing the traction. This guide rod is connected to the sliding device below the trailer base. This guide rod is connected to the connecting rod and the wheels, thereby enhancing the overall stability during operation.
When the sliding hinge moves backward, the interconnected frame bed structure will dynamically adjust while maintaining the tilted movement state of the trailer. This intelligent design can achieve reliable locking at the predetermined position, and the unloading device can return to a raised position higher than its standard driving state.
The direct push configuration provides multiple installation methods - it can be installed at the front, rear, or middle of the trailer. The front-mounted installation type has unique advantages, with a simpler structure and a longer operation stroke.
3.2 Types of Tilting Systems--Link Rods Type
The articulated rear-reversing semi-trailer is a heavy-duty transportation vehicle that uses a hydraulic connecting rod lifting mechanism to achieve backward tilting for unloading. It is mainly used for transporting bulk materials such as sand, gravel, coal, and slag. Its core feature is the adoption of an optimized connecting rod lifting system, which, compared to the traditional direct push-type hydraulic cylinder design, offers better stability and a larger lifting angle.
4.1 Classification of Van Body Type--The Box Type
The articulated rear-reversing semi-trailer is a heavy-duty transportation vehicle that uses a hydraulic connecting rod lifting mechanism to achieve backward tilting for unloading. It is mainly used for transporting bulk materials such as sand, gravel, coal, and slag. Its core feature is the adoption of an optimized connecting rod lifting system, which, compared to the traditional direct push-type hydraulic cylinder design, offers better stability and a larger lifting angle.
4.2 Classification of Van Body Type--The U Type
The rear-mounted semi-trailer U-shaped structure is a dedicated cargo box with a U-shaped cross-section design. It adopts an integral U-shaped cross-section design, with a rounded bottom and a smooth transition between the side panels and the bottom plate, without any right-angle structures. It is formed by the overall rolling of high-strength wear-resistant steel plates, without any reinforcement ribs inside. It relies on the inherent strength of the U-shaped structure.
The U-shaped structure has good material fluidity, allowing for more thorough unloading, and is lighter in weight, reducing the overall weight by approximately 15% compared to the box-type structure. It has excellent fatigue resistance and requires a high manufacturing process.
Its advantages include a residual amount of less than 1% after unloading, better driving stability, better fuel economy, and is particularly suitable for transporting powdery and granular materials.
It is often used in coal transportation, grain and cereal transportation, cement, fly ash and other powder material transportation fields.
5. How to operation semi tipper trailer?
Operating a semi-trailer truck is a very simple task. Drive the semi-trailer to the designated location, then use a bulldozer or other machinery to load the goods into the semi-trailer. After loading, transport it to the destination. Then start unloading. Through the control system, lift the cylinder to unload the goods.
6. Semi tipper trailer specification
The semi-dump trailer offers a variety of capacities and sizes, enabling it to meet the diverse transportation needs of different industries. These sturdy transportation solutions have been meticulously designed to handle a wide range of goods, from construction materials to ores, with optimal efficiency.
The advanced semi-dump transport vehicles of LUYI Company have outstanding load-bearing capacity, with a maximum load capacity of up to 100 tons - making them highly suitable for heavy mining and large-scale infrastructure projects.
7. Why Choose LUYI Tipper semi Trailers?
When purchasing dump truck trailers, you need to carefully consider the following four aspects: specifications, the quality of spare parts and materials, safety, and design.The rear dump semi-trailers produced by LUYI can meet your requirements for these types of vehicles and help you complete your work efficiently.
As is known to all, the trailers for dump trucks are usually used for transporting materials such as aggregates, sand, and asphalt, which are rough and prone to wear. Strong steel plates are needed to prevent squeezing and twisting. Therefore, we use high-strength steel plates, and this design not only prevents scratches on the inner wall but also ensures operational safety.The flat bottom beneath the cylindrical oil tank helps to lower the center of gravity, which also significantly improves wear resistance and driving safety.
The load capacity of LUYI semi-trailer dump trucks usually ranges from 30 tons to 100 tons. Its overall structure has been carefully designed to be able to bear heavy loads and remain stable, so as to be able to drive in harsh road conditions.
8. Tipper semi Trailer Options to Consider in Different Applications
Now that you have understood all the key points to consider when making a purchase, you will be able to choose the type that best suits you more easily to complete the transportation task. Now you can select the rear-discharge type, side-discharge type, or bottom-discharge type based on your own needs for efficient cargo transportation.
In the product catalogue of LUYI, you can find loading capacities ranging from the lightweight 30 tons to the heavy 100 tons. Additionally, you can customize the size or components of the self-unloading semi-trailer according to your needs, and choose different dumping materials such as carbon steel, aluminum, and stainless steel depending on the different transportation materials.
However, please note that each model has its own applicable range. We will provide you with comprehensive services to help you choose the most suitable configuration and ensure its compatibility.
8. Make the choice based on your own needs
Before placing the order, there are two points that you need to understand as clearly as possible. One of them is the size of your unloading space. This size determines which model you will choose. As we mentioned earlier, side dump trucks are suitable for unloading in smaller spaces, while rear dump trucks are better suited for use in wider spaces. So before choosing the model, please clearly understand the size of the unloading space and the size of the unloading site. Additionally, if you are unsure which model is more suitable, please feel free to contact us.
Another factor to consider is the size of the goods. Although these are waste materials, some are smaller in size. In this case, dump trucks with a U-shaped rear end are more suitable for you. They can achieve quick and thorough unloading. However, if the waste materials are large in volume and heavy, choosing a side dump truck will never be wrong.
In the market, there are various types of steel with varying qualities. Under such circumstances, choosing high-quality steel becomes particularly important.
LUYI Company has nearly 20 years of production and manufacturing experience. When it comes to the selection of product raw materials, we are extremely meticulous. We choose high-strength steel, which can be used for over 7 years. With the addition of polyurethane coating, the entire dump-type semi-trailer will not experience cracking or twisting, nor will it suffer from corrosion or rusting.
FAQ
1. The semi-tilt trailer cannot be raised.
If the semi-tilt unloading trailer cannot be raised, we should check the following components:
Check the power harvester: First, check if the transmission shaft connected to the oil pump is rotating. If it is not rotating, it indicates that there is a fault in this part of the power harvester.
Check the pump: Check if the pump is turned correctly and if the pump is damaged.
Check the distribution valve: Check if the gas pipeline on the distribution valve is damaged.
2. Press the lifting control switch, and the semi-trapezoidal trailer will lower.
Check if the electromagnetic valve controlling the lifting mechanism is installed in the wrong direction.
Check method:
1. Adjust the cable of the dashboard lifting switch.
2. Replace the electromagnetic valve circuit controlling the lifting action.
3. Replace the two pipes of the distribution valve.
3. Can semi-trailer dump trucks be used for transporting liquids?
Semi-trailer dump trucks cannot be used for transporting liquids. They are usually used for transporting sand, stones, and other items. If you need to transport liquids, it is recommended that you use tanker truck-style vehicles.
4. What is the maximum load capacity of the semi-trailer dump truck?
The maximum load capacity varies among different manufacturers of semi-trailer dump trucks. LUYI can offer a semi-trailer dump truck with a maximum load capacity of 150 tons. The load capacity depends on factors such as design and size.
5. Can semi-trailer dump trucks be used for long-distance transportation?
Yes, semi-trailer dump trucks are highly suitable for long-distance transportation.
6. How often should I inspect and maintain the semi-discharging trailer?
Every time we use the semi-discharging trailer, we should check the tires, braking system, hydraulic cylinders and other components. To extend the service life of the semi-discharging trailer, we will clean or maintain it after each use. It is also a good choice to perform maintenance on the trailer once every 15 to 30 days.
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