Through Loading Box Trailers

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A through-loading box trailer is designed to allow cargo to be loaded and unloaded from both the front and rear, or even from both sides, offering more flexibility and efficiency during transportation. These types of trailers are particularly useful in logistics, where multiple delivery points or frequent unloading and loading is required.

Main Configuration

  • Body Dimensions: 7.0 m × 2.5 m × 2.5 m or customized.
  • Galvanized steel chassis.
  • FRP sandwich wall panels.
  • Rear doors.
  • Front doors.
  • Non-slip honeycomb core flooring.
  • Stainless steel E-tracks.
  • Aluminium Edge Profiles.
  • Mechanical support.
  • Wheels.
  • Rear bumpers.


TOPOLOGROUP is a professional manufacturer of closed box trailers, which can be used to transport various types of refrigerated products, dry goods or for various commercial activities. We provide design and manufacturing services to ensure that each box trailer meets the specific needs of customers, including body size, load capacity, door configuration, wheel system, interior layout, etc. Our closed box trailers have advanced structural design and use high-quality materials to ensure stable performance during long-term transportation. The insulation, impact resistance and water resistance of the trailers are strictly tested to adapt to various complex climates and transportation environments.

New Materials for Box Trucks

Today, the global transportation market is looking for lightweight and sustainable box body materials. TOPOLOGROUP continues to launch a series of new composite materials for box body manufacturing. These new materials have their own characteristics to meet the application needs of different types of trucks or trailers. Such as thermal insulation, light weight and high strength, waterproof and moisture-proof, strong and durable, economical and environmentally friendly. You can choose foam sandwich panels, honeycomb core sandwich panels, plywood plywood, etc. to build box bodies at TOPOLOGROUP.

Design Team – Professional, Rigorous and Scientific.

We have a professional box body design team with more than 20 years of experience, providing customers with professional design and optimization solutions. When designing a truck body, our team takes into account the following factors:

  • Total vehicle weight.
  • Load capacity.
  • Body rigidity.
  • Fatigue strength.
  • Aerodynamics.

Manufacturing Capabilities

Truck Composite Panel Production Line

TOPOLOGROUP has both adhesive composite panel and thermoplastic composite panel process technology. It has multiple first-class composite panel production lines and implements strict quality standards. The daily production area of ​​composite panels reaches thousands of square meters, and the annual output can meet the manufacturing needs of tens of thousands of truck bodies or trailers.

Metal Parts Processing

We offer a range of components including truck floors, door frames, edging profiles, skirting boards, bumpers, hinges, door locks, handles and more. The metal parts are realized from drawings to physical objects in TOPOLOGROUP metal processing centers. We have many processing centers for sheet metal processing, laser welding, laser cutting, milling, aluminum extrusion profiles, etc. Batch production not only ensures the accuracy of metal parts, but also reduces the procurement costs of truck or trailer manufacturers.

CKD/SKD/CBU

Our box trailers and truck bodies are transported to destination countries and regions in the form of CKD, SKD, and CBU.

  • CKD (Completely Knocked Down): Trucks are delivered in a disassembled state, with all the components packaged separately for local assembly.
  • SKD (Semi Knocked Down): Trucks refer to vehicles that are shipped in partially assembled form, requiring some assembly at the destination.
  • CBU (Completely Built Up): Trucks are fully assembled vehicles shipped directly from the manufacturer to the market without any additional assembly required at the destination.

Globalization Strategy

We are committed to serving truck & trailer manufacturers, dealers, lessors in the global market, as well as logistics, food production and transportation companies that have a large demand for truck transportation.

  • International service teams in English, French, Russian, Spanish, French, Japanese, Arabic, etc. provide pre-sales, production and after-sales services.
  • Accept various transaction methods such as Letter of Credit (L/C), Wire Transfer (TT), Cash, etc.
  • Products are delivered to all parts of the world by sea, air and rail transportation.