Lightweight refrigerated box bodies for trucks or trailers play an important role in solving the last mile transportation of refrigerated goods. Especially in narrow urban alleys and rural roads, which are not convenient for heavy trucks to transport. The 3.2mx2.1mx2.1m lightweight refrigerated box developed by TOPOLO combines high-quality waterproof and thermal insulation materials with optimized design to bring easy operation and transportation safety.
As a box body manufacturer in China, TOPOLO specializes in providing high-level solutions for truck, trailer manufacturers and users in the international market. Our services include:
- Assembled boxes.
- Pre-assembled box CKD kits.
- Box composite panels.
Description
Product specifications
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Dimensions (LxWxH)
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3200x2110x2100mm
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Box outer skin
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FRP sheet
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Box insulation core
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Polyurethane foam
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Box inner skin
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CFRT sheet
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Floor
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Patterned aluminum plate.
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Panel thickness
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Top plate: 100mm
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Side panel: 80mm
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Front panel: 100mm
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Door panel: 80mm
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Floor panel: 100mm
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Door frame
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Stamped mirror 304 stainless steel
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Door retainer
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Hook type, 304 stainless steel
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Hinge
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304 stainless steel
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Cargo rail
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Horizontal E-track, 304 stainless steel
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Door lock
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Exposed lock bar, 304 stainless steel
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Connecting profile
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6061 aluminum alloy extrusion profile
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Door seal
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EPDM rubber
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Refrigeration unit
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Thermo King, Carrier, Supersnow, etc
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Customizable accessories
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Signal lights, internal lights, ventilation fans, bumper strips, etc
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Product features
- Modular design
The box body is composed of composite panels, connecting profiles and accessories. The accessories will be pre-installed on the panel and then assembled using metal profiles. Therefore, whether it is an enterprise with assembly capabilities to achieve large-scale production or an individual who needs finished products, we can cooperate with us.
- Composite box panels (wall panels, roof panels, door panels, floor panels)
We creatively combine FRP (fiberglass reinforced plastic) sheets and CFRT (continuous fiber reinforced thermoplastic) sheets on the box panels. The outer skin of the box panel is FRP, which is smooth and flat; the inner skin is CFRT with high toughness, which is strong and durable. The insulation material of the middle layer is PU (polyurethane) foam with low thermal conductivity, which keeps the temperature inside the box constant for a long time. In order to enhance the structural strength of the box panel, a non-metallic frame is usually embedded inside. To prevent moisture from entering the inside of the box panel, the edges are fully sealed.

Side Panels
① Sealing strip.
② Door lock.
③ FRP sheet.
④ Polyurethane foam.
⑤ Door frame.
⑥ Box assembly metal connecting plate.
⑦ Embedded frame.
⑧ E-track reinforcement plate.
⑨ Anti-impact inner reinforcement plate.
⑩ E-track mounting plate.
⑪ E-track
⑫ CFRT sheet.
⑬ Kicker plate.

Roof Panels
① FRP sheet.
② Polyurethane foam.
③ Embedded frame.
④ Embedded metal sheet.
⑤ FCFRT sheet.
⑥ Wire Pipe
⑦ Air ducts.
⑧ Aluminum rails.

Door Panels
① Kicker plate.
② CFRT sheet.
③ Anti-collision Internal reinforcement plate.
④ Metal connecting plate for box assembly.
⑤ Embedded frame.
⑥ Polyurethane foam.
⑦ FRP sheet.

Floor Panels
① FRP sheet.
② Marine plywood.
③ Polyurethane foam.
④ CFRT sheet.
⑤ Embedded frame.
⑥/⑦ Metal connecting plate for assembly.
- Floor, kick palte
The floor and kick palte are made of solid patterned aluminum alloy, and the rear door kick plate is striped aluminum plate. These measures prevent the goods from damaging the internal box during transportation or loading and unloading.
- Subframe
The subframe is strong and durable, stamped and welded from high-strength T7OO steel plate, and finally galvanized. The box and subframe are connected by bolts.
- Rear door opening and closing method
TOPOLO abandons the traditional right-angle side door and adopts a unique beveled corner door. This design makes it easier for operators to open the door (open one door first and then the other door, instead of opening both doors at the same time). The door edge is sealed with multi-tooth EPDM rubber strips to completely isolate the water vapor exchange between the inside and outside of the box.
Our Professional Services
- More than 10 international language service teams (English, Spanish, French, Portuguese, Korean, Japanese, German, Italian, Russian, Arabic, etc.) for efficient communication.
- Experienced engineers develop high-quality solutions for you.
- Internationally advanced CNC machinery and equipment provide guarantee for efficient and rapid manufacturing of box body parts.






Global Services
TOPOLO supplies global service, which greatly simplifies the processing procedure of local enterprise truck and trailer projects. Our refrigerated boxes have been exported to Europe, Africa, South America, North America, Central Asia, Southeast Asia and other international markets.









