| Customization: | Available |
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| Colour: | Black |
| Loading Weight: | 80tons |
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| Structural Advantages | - Strong load-bearing capacity: The frame is usually made of high-strength steel, which can bear a large cargo weight and meet the transportation needs of different goods. |
| - High space utilization rate: The body structure is reasonably designed and can be customized according to the shape and size of the goods, effectively utilizing the internal space of the carriage and improving transportation efficiency. | |
| - Good stability: It is generally equipped with multiple sets of tires and a suspension system, which can evenly distribute the cargo weight, lower the center of gravity, and improve the stability and safety of the vehicle during driving. | |
| Simplicity in Use | - Convenient loading and unloading: The carriage is usually designed with openable side doors, rear doors, or top hatches and other structures, which is convenient for loading and unloading goods and improves work efficiency. |
| - Simple operation: The operation components such as the braking system and steering system are designed in line with ergonomics, making it easy for drivers to get started and operate conveniently. | |
| - Convenient connection: The connection device with the tractor has a high degree of standardization. The connection and disconnection processes are simple and quick, enabling rapid vehicle marshalling and disassembly. | |
| Features | - Strong adaptability: According to different transportation needs, it can be modified into various types of semi-trailers, such as box semi-trailers, tank semi-trailers, flatbed semi-trailers, etc., to adapt to the transportation of a variety of goods. |
| - Good economy: Due to its large loading capacity and high transportation efficiency, it can reduce the transportation cost per unit of goods during long-distance transportation and has good economic benefits. | |
| - High safety: It is equipped with a complete braking system, lighting system, and safety protection devices, which can ensure the safety of the vehicle and goods during driving. | |
the semi-trailer landing gear can be classified in various ways, as follows:
| According to the installation position | - Built-in landing gear: It is installed inside the frame of the semi-trailer and is relatively concealed, not easily visible from the outside. This makes the vehicle as a whole more aesthetically pleasing. At the same time, it can prevent the landing gear from being collided and corroded by the outside world. However, maintenance and repair are relatively inconvenient. |
| - External landing gear: It is installed outside the frame of the semi-trailer, making it easy to observe and maintain. It is more convenient to troubleshoot when a fault occurs. However, it is prone to be affected by external factors, such as collisions and rust. | |
| According to the operation mode | - Single-action landing gear: The landing gears on both sides can be operated independently. Each side has a gear transmission box and a hand crank, and can be independently lifted. It has strong adaptability and can be used on both flat and uneven ground. |
| - Linked landing gear: It has only one gear transmission box, and the left and right landing gears can be lifted simultaneously through one hand crank. The lifting speed is twice as fast as that of the single-action landing gear. However, it is only suitable for flat ground. | |
| According to the load-bearing capacity | - Light-duty landing gear: It is suitable for light-duty semi-trailers and has a low load-bearing capacity. It is usually used on semi-trailers with low requirements for load capacity and transporting light goods. It is relatively inexpensive and simple to maintain. |
| - Heavy-duty landing gear: It is made of high-strength materials and is equipped with a multi-stage hydraulic cylinder structure, with extremely strong load-bearing capacity. It can adapt to the transportation of ultra-heavy goods under extreme working conditions such as mines and construction sites. | |
| According to the stroke | Different landing gears of semi-trailers have different strokes. The common landing gear usually has a stroke of about 45 centimeters, and the relative closed height is about 90 centimeters. The selection of the stroke should be determined according to the actual usage requirements of the semi-trailer. For example, factors such as the height of the cargo loading and unloading platform and the height difference when the tractor is connected to the semi-trailer will affect the selection of the stroke of the landing gear. |
| In addition, according to the power type, the landing gear can also be divided into pneumatic type, hydraulic type, electric type, etc. Different types of landing gears of semi-trailers have their own characteristics in terms of structure, function, and application scenarios. Users can make selections according to their actual needs. | |
| I. Installation Steps | (1) Preparation before Installation | 1. Confirm that the selected model of the mechanical landing gear matches the semi-trailer, and the load-bearing capacity of the landing gear should meet the support requirements of the semi-trailer when it is fully loaded. |
| 2. Prepare the necessary installation tools, such as wrenches (including open-end wrenches, box wrenches, etc., with specifications determined according to the bolt size), hammers, spirit levels, tape measures, marking pens, etc. | ||
| 3. Clean the part of the semi-trailer frame where the landing gear is to be installed, remove the rust, oil stains and debris on the surface to ensure that the installation surface is flat and clean. | ||
| (2) Positioning | 1. Determine the installation position of the mechanical landing gear according to the design requirements of the semi-trailer or the installation drawings. Usually, the landing gear should be installed on both sides at the front end of the semi-trailer frame, symmetrically distributed left and right. | |
| 2. Use a tape measure to measure and mark the positions of the installation holes of the landing gear, and ensure the accuracy of the installation positions of the left and right landing gears, with an error controlled within ±5mm. | ||
| (3) Installing the Main Body of the Landing Gear | 1. Lift the mechanical landing gear to the installation position, and align the installation holes on the landing gear with the marked hole positions on the frame. | |
| 2. Insert the matching bolts, put on flat washers and spring washers in sequence, and then initially tighten the nuts, but do not tighten them completely to facilitate subsequent adjustment. | ||
| (4) Tightening the Bolts | 1. Use a wrench to gradually tighten the installation bolts in a crisscross diagonal pattern to make the landing gear closely fit the frame. | |
| 2. The final tightening torque should reach the value specified in the product instructions. Generally, a torque wrench can be used for precise control to ensure the firmness of the installation. | ||
| (5) Inspection and Debugging | 1. After the installation is completed, check whether the appearance of the landing gear is damaged and whether all components are firmly connected. | |
| 2. Manually operate the landing gear for lifting and lowering tests, and check whether the lifting and lowering of the landing gear are smooth, and whether there are any abnormal noises or jams. During the lifting and lowering process, observe the perpendicularity of the landing gear to ensure that the landing gear is perpendicular to the ground, with a deviation not exceeding ±2°. | ||
| 3. Place a spirit level on the semi-trailer frame to check whether the frame remains horizontal when supported by the landing gear. If necessary, the height of the landing gear can be slightly adjusted to achieve the horizontal state of the frame. | ||
| II. Precautions | 1. Safety First: Wear personal protective equipment such as safety helmets and gloves during the installation process to prevent accidents. When multiple people work together for installation, pay attention to cooperation with each other to avoid injuries caused by poor communication. | |
| 2. Accurate Positioning: The installation position of the landing gear is crucial. Inaccurate positioning may lead to instability of the semi-trailer when it is parked, and even affect the driving safety of the vehicle. Therefore, it is necessary to strictly position according to the design requirements or installation drawings, and use measuring tools to ensure the accuracy. | ||
| 3. Bolt Tightening: When installing the bolts, operate according to the specified tightening torque. Too loose may cause the landing gear to loosen and affect the support effect; too tight may damage the bolts or the frame. When using a torque wrench, calibrate it regularly to ensure the accuracy of the measurement. | ||
| 4. Prevent Debris from Entering: During the installation process, pay attention to preventing debris from entering the transmission components or internal structure of the landing gear to avoid jams or damage. After the installation is completed, appropriate protection can be provided for the landing gear, such as applying protective grease. | ||
| 5. Installation Environment: Try to choose a flat, dry and well-ventilated site for installation, and avoid working in rainy days or humid environments to prevent metal components from rusting. |
Jining Shengda Machinery Co.,ltd is a comprehensive enterprise that integrates design, production, and sales of semi-trailer parts and semi-trailer, located in Jining City, Shandong Province, China. The company was established in 2004, mainly engaged in trailer axles, trailer suspension, trailer landing gear, trailer fifth wheel, trailer king pin,container fasteners twist lock, brake chamber, slack adjuster, air bank, semi trailer parts and semi trailer. Also distributes truck parts,excavator parts,bulldozer parts,agricultural equipment parts,,lifting platform parts,general machinery parts,used semi trailer,used truck and so on. It has various manufacturing equipment and more than 1000 experienced employees with a factory area of over 24000 square meters. Our company has large-scale production and warehousing capabilities. Improving product quality, improving employee quality, strict quality assurance system and sound management system, and high-quality after-sales service are our foundation. Our company adheres to the principle of "quality first, reputation first" and provides customers with various types of products with quality and quantity assurance. In the fierce market competition, keep up with the times, maintain innovation, and ensure product leadership! Relying on technology, continuously improving the technological content of the products sold, and creating higher market value for society, customers, and companies. Our company has always created enterprises with integrity, operated the market with integrity, and won a good reputation, as well as the respect of our domestic and foreign peers.
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