VAN TRAILER

The box semi-trailer features good sealing performance, which is dust proof, rainproof and moisture-proof, effectively protecting goods from sun and rain. The enclosed box structure provides high safety with anti-theft function and prevents cargo damage during transportation. It has light weight, strong bearing capacity and regular internal space with large loading volume and high space utilization. With stable driving performance and good road adaptability, it is widely used to transport general cargo such as daily necessities, express goods, home appliances and clothing. The box body is sturdy, durable and not easy to deform, featuring long service life, convenient loading and unloading, high efficiency and cost effectiveness.
Based on structural design differences, Van box semi-trailers are generally classified into five types: wing van semi-trailers, curtain side semi-trailers, dry van semi-trailers, and refrigerated box semi-trailers.

TRAILER RUNNING GEAR PARAMETERS

Item Specifications Remark
MaterialHigh strength Carbon steel T700 or manganese steel Q345B
Main beamH beambeam extendable optional
Axles11.5ton,13 ton(16ton,20ton) capacityFUWA,BPW,AN,CTC or GT Brand
SuspensionMechanical suspensionAir suspension optional
Leaf springLeaf springAir bag lifting optional
Tire11R22.5 , 12R22.5 ,315/80R22.5,385/65R225Other size and brand optional
King pin2”/3.5” bolt type,SAE standardWelding on type optional(JOST)
Landing gear28 Ton two speedJOST or equivalent brand
PlatformChecked plate 3mmOther thickness optional
Side beam160mm
Twist locksOptional
Braking systemDual line brake system,Double air chamber ,brake valve,40L air tanks ;ABS optional
ElectricalLED light , 7 ways ,24V
PaintingBlasting and clean rust,1 coat of prime painting ,2 coat of finish painting
AccessoryTool box,oil tank,spraying system optional

Above date can be customized per your local regulation and requirement

1.WING VAN SEMI TRAILER

Core parts from Japan ,Boasts a service life of over 15 years.
The WING VAN box body can be made of either aluminum alloy or ordinary carbon steel. Aluminum alloy offers superior rust resistance, leading to better long-term waterproof performance. It features strong corrosion resistance, longer service life and lighter dead weight. Under the same gross weight limit, it can carry more cargo.The wing van semi-trailer, especially the aluminum alloy wing van semi-trailer, boasts a quality level comparable to Japanese-made counterparts. With exquisite workmanship and reliable structure, it features extremely low aging and depreciation rates under standard operation. The vehicle can serve for over 15 years with outstanding durability.

  • In terms of design, the wing van open semi-trailer can be built with full-side wing opening structure. It can also adopt a combined structure with a lower fence and an upper wing. This design shortens the wing panel, making the opening and closing operation feasible even in narrow spaces.
  • Side opening design: Both sides lift up to nearly 90 ° via electric hydraulic (or manual) system; rear doors open 270° for full access.
  • High efficiency: Both sides can be hydraulically opened, three-side loading with high efficiency,Enables simultaneous forklift loading/unloading from both sides, 2 3 × faster than standard box vans; ideal for palletized goods and intermodal transport.
  • Fully enclosed & secure: Weatherproof (rain/dust/sun), theftresistant, with durable sealed roof structure.
  • Lightweight & strong: Highstrength steel/aluminum construction balances light weight, payload capacity and fuel efficiency.
  • Versatile: Suitable for home appliances, paper, auto parts, express cargo; works in tight spaces and allows top loading in some models.
  • Stable on road: Aerodynamic closed design reduces drag and improves lateral stability at high speeds
  • Dump semi-trailers are mainly divided into rear dump type and side dump type.
  • The overall length of the wing semi-trailer ranges from 20ft to 18 meters. The most popular specifications are 40ft,

45ft and 53ft. The standard width is 2550mm, and the height is generally between 4m and 4.4m. All dimensions can be customized according to customer requirements and local height limit regulations.

  • It is usually equipped with 2 axles or 3 axles, and a 4-axle version is also available. In addition, the trailer can be designed with a step-wise drop side structure. This design lowers the cargo center of gravity and overall height, allowing for a larger cargo capacity.
  • For the exterior design of aluminum alloy wing semi-trailers, customers can choose between flat aluminum panels and corrugated aluminum panels.
  • The trailer is fitted with Japanese-made motors, featuring high quality and a long service life. As a core component, its precision manufacturing ensures stable performance and exceptional durability for the entire vehicle.
  • The aluminum wing semi-trailer is generally constructed with aluminum profiles and lined with plywood inside. The aluminum profiles are connected by riveting instead of welding. This process better adapts to the characteristics of aluminum, delivering a stronger and more durable structure.
  • Another advantage of the aluminum alloy WING VAN semi-trailer is its easy maintenance. In case of collision damage or local breakage, only the damaged aluminum profile needs to be removed and replaced with a new one. The trailer can be restored to its original perfect condition after repair.

Flat aluminum cover wing van trailer

Rib aluminum cover wing van trailer

2.CURTAIN SIDE SEMI TRAILER

Sliding curtain side design, convenient side loading. Light weight and flexible usage, legal on road. Lower cost than wing van, easy to operate. Suitable for express, bulk cargo and steel coil. Good rainproof performance and high cost performance. The curtain side semi-trailer features a lightweight structure and lighter tare weight, allowing for larger cargo capacity and better economic benefits. With a sliding curtain design on the side, it is easy to open without removing the tarpaulin, enabling efficient loading and unloading, especially for forklift operation from the side. The curtain provides good rainproof, dustproof and sun-proof performance with reliable sealing to protect goods. The trailer has a neat appearance, low wind resistance and stable driving performance.
Compared with wing vans, it has a lower price, simpler structure, lower failure rate and lower maintenance cost. The length, height and axle quantity can be customized. It is widely used for general cargo, steel coils, pipes, pallet goods and LTL freight.Flexible, practical and road legal, it is a high-cost-performance choice for logistics transportation.

  • The side curtain trailer is equipped with high-quality inverted PVC curtain fabric, which is durable and wear-resistant. With moderate hardness and stable performance, the curtain can be customized with the customer’s exclusive logo.
  • The body is made of high-strength steel, equipped with movable and detachable vertical columns.The transverse movable aluminum alloy bars are removable and adjustable.
  • The roof can be designed with aluminum plate, steel plate or top curtain, all customizable according to customer requirements.
  • The front and rear panels of the curtain side semi-trailer can be made of corrugated steel plate or aluminum alloy plate.The rear door can also be customized with aluminum alloy or corrugated steel.We can provide different configurations according to customers’ various requirements.
  • The curtain side semi-trailer features excellent sealing and superior waterproof performance. Adopting an all-mechanical structure, it is simple to operate with a low failure rate and stable performance.A ladder is installed at the rear end to facilitate staff access to the vehicle top.
  • The trailer floor can be equipped with wood board, plywood or anti-slip patterned steel plate.
  • The curtain side semi-trailers manufactured by Shiyun are not only designed for efficient cargo transportation, but also feature simple and effortless operation. The side curtain slides smoothly and lightly, allowing it to be easily pulled open and closed with minimal force, greatly improving loading and unloading efficiency

Curtain side trailer with aluminum rear gate

Curtain side trailer with steel gate

3.DRY VAN SEMI TRAILER

Normal dry van semi trailer Simple structure and cost-effective price. Fully enclosed box, rainproof, dustproof, moisture-proof and anti-theft, good cargo protection. Moderate dead weight, stable running and easy maintenance. Suitable for general goods, home appliances and garments. Only rear door access, slow loading and unloading speed.Although side doors can be optionally installed, its loading and unloading efficiency is much lower than that of a wing van semi-trailer.The overall length, width and height of the trailer are fully customizable. The configuration can be adjusted according to customers’ load requirements to meet different tare weight standards. Axle options include 2-axle, 3-axle and 4-axle designs.
The dry van box semi-trailer can be manufactured with carbon steel, fiberglass or aluminum alloy.

Carbon steel box trailer

Fiberglass steel box trailer

Aluminum box trailer

  • Corrugated carbon steel plate is commonly used to improve loading capacity, and multi-door designs can be customized according to customer requirements.Carbon steel features heavy weight, high durability and lower cost.
  • Fiberglass is also one of the most popular materials.The fiberglass box semi-trailer adopts an integrated fiberglass box body with a smooth surface. It features excellent waterproof, moisture-proof and anti-corrosion performance.The material is rust-free, acid and alkali resistant, and anti-aging. It is not easy to deform or crack after long-term use and maintains a good appearance. With superior sealing performance, it can effectively protect cargo from rain and dust.It is lighter than carbon steel box bodies and provides larger loading capacity. The integrated molding structure is stable, easy to maintain and has a longer service life.Compared with carbon steel and aluminum alloy, fiberglass has better toughness and impact resistance. It is widely used for long-distance transportation of daily goods, express cargo and general bulk goods.
  • For aluminum alloy box bodies, aluminum profiles or aluminum panels are adopted, with either riveted or welded connections available.For large transportation companies, logistics and express delivery enterprises, a lighter tare weight allows for more cargo loading, making aluminum alloy the optimal choice.Carbon steel features lower cost and better economy, while aluminum alloy is more durable and lightweight, enabling it to carry more cargo under the same configuration.Another advantage of the aluminum alloy semi-trailer is its easy maintenance. In case of collision damage or local breakage, only the damaged aluminum profile needs to be removed and replaced with a new one. The trailer can be restored to its original perfect condition after repair.

4. REFRIGERATED VAN SEMI TRAILER

Excellent thermal insulation with refrigeration unit for constant temperature. Moisture-proof and fresh-keeping, specially for cold chain goods. High sealing performance and stable temperature control. Used for fruit, meat, seafood, frozen food and medical cold chain transport.There are two main types of refrigerated semi-trailers.The first type installs a refrigerated shipping container on a skeleton semi-trailer. This design is more economical and cost-effective. It is suitable for most refrigerated goods and cargo that do not require extremely strict temperature control.

The refrigerated semi-trailer is equipped with a high-strength thermal insulation box with excellent heat preservation and stable temperature control performance.

  • It features good sealing, waterproof and moisture-proof function, which can isolate outside temperature and keep constant internal temperature.
  • It is specially used for fresh fruits, vegetables, meat, seafood, frozen food and medical cold chain goods transportation.
  • The box body is firm, anti-aging and not easy to deform. The thick insulation layer ensures stable and long-lasting refrigeration effect.
  • It runs smoothly with accurate temperature control, keeping goods fresh and undamaged during transportation.
  • Size, door type and floor material can be customized. Multi-temperature zone design is optional with wide application range.
  • Refrigeration units for refrigerated trucks are optional brands: Thermo King (Super Phoenix) or Carrier, and standby power supply is available.

5. HOPPER BOX SEMI TRAILER

Hopper semi-trailer features an irregular structure with wide top and narrow bottom, mainly used for transporting grains such as wheat, corn, peanuts and rice.
All dimensions can be customized as required.
Pneumatic discharge valves are installed at the bottom for automatic unloading. Sliding opening system is available on the top.
The cargo box can be made of food-grade stainless steel or carbon steel. Volume and load capacity are customizable according to customer demands.