Semi-trailers are one of the main forces of logistics and transportation, and many driver friends are also using them, but how are semi-trailers classified, what are the main structures of semi-trailers, and how are semi-trailers manufactured? What should you pay attention to when buying semi-trailers? How to use and maintain the trailer? This topic will answer you one by one to help you make better use of the semi-trailer.

Our commonly used trailers can be categorized into cargo box trailers, flatbed trailers, low flatbed trailers, stake trailers, van trailers, container trailers, dump trailers, tank trailers, bulk cement trailers.

● Cargo box semi-trailer series

The cargo part of the railing type semi-trailer is a semi-trailer with a railing structure. It is widely used, mainly suitable for medium and long-distance transportation of medium and heavy and bulk cargoes. It has strong applicability and has become the first choice for medium and long-distance freight vehicles.

     1. The body of the vehicle is made of high-quality steel, advanced technology and strict production. The structure of the vehicle is reasonable, the performance is reliable, the operation is simple, and the appearance is beautiful.

     2. The frame of the series semi-trailer is a through beam type structure, and the longitudinal beam adopts a straight type or a gooseneck type. The web height is from 400mm to 550mm manganese plate welding, the longitudinal beam is welded by automatic submerged welding, the frame is shot peened, and the crossbeam penetrates the longitudinal beam and welds the whole.

     3. The suspension adopts non-independent steel plate stamping rigid suspension, which is made of serial leaf springs and suspension bearings; the structure is reasonable, with strong rigidity and strength, used to support the load and reduce the impact.

The flatbed semi-trailer has no barriers on the vehicle parts, and is widely used, mainly for medium and long-distance freight transportation.

    1. The flat-type semi-hanging walking structure uses high-strength international steel materials; the weight of the whole vehicle is light, and its anti-twist, anti-vibration, anti-jump ability is guaranteed to meet different road bearing capacity.

    2. The frame of the series semi-trailer is a beam-through structure, and the longitudinal beam adopts straight or gooseneck type. The height of the web is from 400mm to 550mm, the longitudinal beam is welded by automatic submerged arc welding, the frame is shot peened, and the transverse beam penetrates the longitudinal beam and welds the whole.

    3. The tandem dry plate spring and suspension support are composed of a reasonable structure with strong rigidity and strength, which is used to support the load buffer impact.

Low-floor semi-trailer trucks are also widely used, and are suitable for the transportation of various steel materials for a variety of mechanical equipment, large objects, road construction equipment, large tanks, and power station equipment.

    1. The series of low-floor semi-trailers have flat-plate, concave beam and exposed tire structures, and the longitudinal beams are straight or gooseneck. The frame is stepped, and the longitudinal beam section is I-shaped. It has the characteristics of high rigidity and high strength.

    2. The main plane of the frame and cargo platform is low, which ensures the stability of transportation and is suitable for carrying various types of engineering machinery, large equipment and steel.

    3. Adopt three-axis balanced type, two-axis balanced type or rigid suspension, and a mass balance block is installed between the front and rear leaf springs, which can change the deflection of the front and rear leaf springs by the same amount and make the front and rear axles balanced in force;

    4. The low-floor semi-trailer series products are suitable for a variety of machinery and equipment, large objects, road construction equipment, large tanks, power station equipment, and other transportation. They are versatile, efficient and fast. The whole vehicle adopts advanced computer-aided design software, and the optimization design is flexible and diverse. According to user requirements, the frame bearing surface is designed to meet the transportation of various special goods.

● Stake semi-trailer series

The semi-trailer of the stake semi-trailer adopts a fence structure design. It is mainly used for the transportation of agricultural and sideline products and other light foam goods.

    1. The design process of the vehicle model and the fence structure combines with the user's cargo category and is reasonably designed to fully reduce the weight of the car under the load. The structure is simple and applicable, and the disassembly is convenient. It reduces the investment cost for the user and creates more profit value.

    2. Frame: A space frame structure formed by welding of longitudinal beams and integral through beams. It can balance the strength, stiffness and toughness of the frame, with strong bearing capacity and no permanent deformation.

    3. The series of warehouse grid semi-trailers are all through beams, and the longitudinal beams are straight or gooseneck. The web height is from 400 to 500. The longitudinal beams are welded by automatic submerged arc welding. The frame is shot blasted. The transverse beams penetrate the longitudinal beams and are welded together.

    4. Suspension system: A new type of suspension system is adopted, which has high strength and strong impact resistance; the load of each axis is balanced, the system tie rod angle is designed reasonably, and the friction and slip distance between the tire and the ground is reduced during the frequent bumping process , Effectively reduce tire wear, at the same time adjustable tie rod, adjustable wheelbase, effectively avoid the tire partial wear and bite phenomenon.

● Van semi-trailer series

 The van semi-trailer series products are suitable for the transportation of construction materials such as household appliances, light textile goods, coal, sand and stone, as well as picture board goods.

    1. Van transport semi-trailer has strong bearing capacity, high safety factor, reasonable design, ruggedness, and advanced manufacturing technology.

    2. The frame of the van transport semi-trailer is a beam-through structure, and the longitudinal beams are straight or gooseneck. The web height is from 400 to 550, the longitudinal beams are welded by automatic submerged welding, the frame is shot blasted, and the transverse beams penetrate the longitudinal beams and are welded together.

    3. Van structure: the van body adopts high-strength cold-rolled corrugated steel plate, no skeleton structure, the center is everywhere, various choices, the loading space is large, the van body is reasonably distributed, the X-shaped brace has multiple pulls, heavy load and dead weight Light features. There are closed type, push-pull open type, open type, open awning cloth rod type, etc. on the roof, which is easy to operate and meet the diversified and personalized requirements of users.

    4. Composed of series leaf springs and suspension bearings; the structure is reasonable, with strong rigidity and hardness, used to support the load and reduce the impact.

    5. The van transport semi-trailer adopts closed side protection design, which effectively reduces the lateral risk of the vehicle when driving at high speed and reduces energy consumption. The rear protection design has a reasonable trolley attachment, which is convenient for operation.

● Container semi-trailers series

The semi-trailer of the container is a semi-trailer with a container structure. It is mainly used in the logistics system supporting ships, ports, routes, highways, transfer stations, bridges, tunnels and multimodal transport.

    1. Specially used for transportation of various containers. Can be used repeatedly for a long time, with sufficient strength

    2. Use container to transfer goods, you can directly load the goods in the consignor's warehouse, and transport them to the consignee's warehouse for unloading. When changing the car or ship halfway, you don't need to take the goods out of the box and replace them.

    3. It can be quickly loaded and unloaded, and can be directly and conveniently changed from one transportation tool to another transportation tool.

    4. It is easy to fill and unload the goods to meet the individual needs of customers. According to customer needs tooling guarantee, stable quality and reliable performance.

● Dump semi-trailer series

 Dump type semi-trailer is suitable for the transportation of bulk and bulk goods such as coal, ore and building materials.

     1. The car adopts the method of side-turning and back-turning self-unloading, which can effectively improve the transport efficiency of the bulk unloading of bulk goods by the loader.

     2. The frame and the longitudinal beam of the carriage are welded with high-quality manganese plates, and the cargo box has two types of dustpan and rectangular. It has high strength, strong lifting force, good rigidity and toughness, strong bearing capacity and no permanent deformation.

     3. Sophisticated technology: the main components are processed by advanced equipment, the longitudinal beams are made by fully automatic submerged arc welding, and the assembly machine is used to accurately assemble the axles and leaf springs.

The structure of the tank-type semi-trailer carrying part is a tank-type semi-trailer. It is mainly used to transport liquids, bulk materials and bulk cement.

     1. The tank truck series are divided into oil tank truck, concrete mixer truck, powdered materials and bulk cement truck, water supply truck, etc.

     2. The tank body is manufactured by three-dimensional design and advanced processing technology. The chassis adopts special chassis of various manufacturers, with advanced technology and reliable performance.