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As an indispensable key equipment in the modern logistics and transportation system, the application scenarios of semi-trailers are deeply integrated into various links of supporting logistics systems such as ships, ports, routes, roads, transfer stations, bridges, tunnels, and multimodal transport, forming an efficient and connected transportation network.
Enhancing Transportation Efficiency and Reducing Costs
In the field of road transportation, semi-trailers have become the main force for long-distance and large-volume cargo transportation with their huge cargo space and strong carrying capacity. The front part of the semi-trailer truck is the tractor, the trailer is located at the back, and the front part of the trailer is placed on the tractor. Compared with “monolithic” vehicles, semi-trailer trucks can improve the comprehensive economic benefits of road transportation, the transportation efficiency can be increased by 30-50%, the cost can be reduced by 30-40%, and the fuel consumption can be reduced by 20-30%. The semi-trailer mainly transports bulky and difficult-to-split bulk goods, as well as fresh and live goods, such as vegetables, meat, and fruits.
Common Standard Semi-trailer Box Size and Volume
| Dimensions | External (LxWxH) (Unit: m) | Inner (LxWxH) (Unit: m) | Theoretical Volume (Unit: m³) |
| 20 feet | 6.1×2.44×2.59 | 5.69×2.13×2.18 | 26.4 |
| 20 feet | 6.1×2.44×2.59 | 5.42×2.26×2.24 | 26 |
| 40 feet | 12.2×2.44×2.59 | 11.8×2.13×2.18 | 54 |
| 40 feet | 12.2×2.44×2.59 | 11.20×2.24×2.18 | 54 |
| 40 feet | 12.2×2.44×2.9 | 11.8×2.13×2.72 | 68 |
| 40 feet | 12.2×2.44×2.9 | 11.62×2.29×2.50 | 67 |
| 45 feet | 13.7×2.44×2.9 | 13.58×2.34×2.71 | 86 |
| 45 feet refrigerator | 13.7×2.44×2.9 | 13.10×2.29×2.50 | 75 |
TOPOLO, as a vehicle lightweight solution expert, provides different material solutions
At present, the semi-trailer bodies produced by TOPOLO are mainly used in the two fields of refrigerated cargo and dry cargo transportation. Depending on the different uses, the materials used to build the trailers are also different.
| Item | Body Materials |
| Refrigerated trailer | XPS (Extruded Polystyrene) foam sandwich panels PU (Polyurethane) foam sandwich Panels |
| Dry freight trailer | XPS (Extruded Polystyrene) foam sandwich panels PET (Polyethylene Terephthalate) foam sandwich Panels PP (Polypropylene) honeycomb sandwich panels HDPE sandwich panels (Duraplate) |
Box Body Semi-Trailers in TOPOLO
TOPOLO provides professional solutions for building semi-trailer truck bodies. TOPOLO covers the service of “design – production – assembly”, providing customers with reliable choices.
Semi-trailer Body Design
In the semi-trailer body design, TOPOLO relies on a professional R&D team and advanced design tools (such as 3D modeling software, finite element analysis system, etc.) to achieve precise control from concept design to detail implementation.
- Lightweight design: Using new composite materials to reduce the dead weight while ensuring the body’s carrying capacity, improve fuel efficiency and load potential.
- Safety optimization: Through simulated collision tests and structural mechanics analysis, the impact resistance of the body frame is strengthened, and safety designs such as rollover prevention and brake synchronization are equipped.
Semi-trailer Body Bulk Kits
For customers who have assembly capabilities or personalized modification needs, TOPOLO provides semi-trailer body complete knock-down kits (CKD kits). This type of kit contains all the parts required for the body – from profiles, panels, to connectors (bolts, rivets, etc.), accessories (fences, door locks, lighting components, etc.), and comes with detailed assembly drawings and technical instructions.
Completely Installed Semi-trailer Bodies
The semi-trailer body delivered by TOPOLO is a finished product that has gone through a strict production process and quality inspection. Its advantage is that it is “ready to use after installation”. Customers do not need to organize complex assembly procedures by themselves. They only need to connect the body with the tractor head and it can be put into operation.
