insulated truck Body panels

We are insulated truck panel manufacturers. We customize fiberglass PU/XPS sandwich panels according to your dimensions and chassis requirements. Customizable front panels, roof panels, side panels, rear doors, and side door panels are available. Suitable for refrigerated and insulated cargo compartments. R-values range from 4 to 25, densities from 35 to 60 kg/m³, and thicknesses from 30 to 160 mm. We provide CKD/SKD refrigerated truck body designs.

Easy to assemble with modular design
Multiple lightweight materials available
Customized box truck , trailer and semi-trailer in different sizes are available!
Two people can complete the installation in just three hours.
Customized flat or flat-pack kits, pre-assembled units

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Features

Sandwich panels with fiberglass skins and insulating foam can enhance insulation performance and minimize heat transfer.Composite Box has many years of experience in manufacturing insulated truck panels. We have world advanced hot press laminating equipment, 5-axis CNC machining machine. We use reinforced steel and aluminum extrusions inside to ensure stability. We can produce lightweight, beautiful, seamless, impact and corrosion resistant truck insulation panels. We are committed to providing efficient, lightweight and durable customized solutions to help the global refrigerated transportation industry. Our products are popular with refrigerated truck dealers around the world.

We offer customization services:

Offers a wide range of masking materials that can be customized with glossy, matte, or non-slip textures.
Accessory support: Latch, hinges, seals and LED lighting system are available. Compatible with CKD/SKD delivery to simplify the assembly process.
Equipped with hot-press lamination machinery and CNC precision machining lines, along with stringent quality inspection procedures.

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Catalog

Our Product

FRP Foam sandwich Panels

CFRT Foam sandwich Panels

Contact

info@composite-box.com
@topolo

Product advantages

Composite box early to provide foam sandwich panels for refrigerated trucks; after years of research and production, we can provide a complete solution, and in terms of performance, we can do better.

Cost-effective: in-house production capacity reduces costs.
Customised kits: up to 16 types of kits available, including floor, front door, locks, etc.
High strength: using FRP as skin, vacuum high-temperature lamination.
Long service life: not easy to age, good waterproof performance, long service life
Easy installation: one person can install it.
Advanced material: beyond the traditional aluminum truck body panels
Multiple materials available.
Our team delivers professional design and premium craftsmanship
to ensure perfect insulation solutions for truck body panels.

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Selecting Insulation Materials

Our insulation foams feature core materials such as XPS, PU, and PP honeycomb, each suited for different skins and applications. Please refer to the table I provided to optimize your cold chain transportation efficiency.

Core	Cladding	Advantages	Application Scenarios
XPS Foam	FRP/CFRT	Waterproof, Moisture Resistant	Frozen Meat, Agricultural Products
PU Foam	Aluminum Panel	Excellent Thermal Insulation	Pharmaceuticals, Dairy Products
PP Honeycomb	FRP	Ultra-Light, High Strength	Dry Goods, Multi-Temperature Zones

Core Features of Customized Insulated Truck Body Panels

.The core function of insulated truck body panels is efficient thermal insulation, significantly reducing heat transfer to maintain stable interior temperatures and lower refrigeration unit energy consumption. Utilizing polyurethane or XPS foam core materials, thermal conductivity can be as low as 0.022 W/m·K. They effortlessly withstand temperature differentials ranging from -18°C to +20°C. This composite material accommodates various structural frameworks—including wood, aluminum alloy, and FRP—enabling flexible reinforcement according to operational requirements.

Compared to traditional aluminum panels, they reduce weight by over 30%, substantially improving transportation efficiency. Their modular design ensures seamless compatibility with diverse accessories, supporting rapid assembly and mass production.

Why Choose Composite Box?

Composite Box specializes in customized composite panel solutions for refrigerated trucks, offering tailored services that guarantee 100% precise fit regardless of dimensions or chassis type. We start by selecting the right materials for your needs, followed by design, and then proceed to mass production.

Enhanced Benefits

We deliver the most cost-effective quantitative advantages, with solutions that provide long-term benefits. Our insulation panels deliver tangible improvements.

Weight reduction

Energy savings

Load capacity increase

High performance material specifications:

High-performance material specifications
fiberglass skin: 0.8mm~5mm
Insulation foam:XPS (extruded polystyrene) foam, PU (polyurethane)
Total thickness: 30~120mm
Width: up to 3.1m
Length: up to 11.8m

Application

Industrial Applications:

Refrigerated Transportation
Frozen Distribution
Pharmaceutical Logistics
Food Processing
Emergency Relief

Also provides sandwich panels for food trucks, sanitary trailer trucks, and horse trucks.

main types of refrigerated trucks:

Refrigerated Semi-trailers
Heavy/Medium/Light-duty Refrigerated Trucks
Refrigerated Vans (e.g., small box trucks)
Pickup Trucks with Refrigerated Boxes
Electric & New Energy Refrigerated Trucks

FAQ

There are many types of insulated panels that are mainly used on refrigerated trucks, freezer trucks and insulated trucks. They are also able to be used in construction, interior walls and other areas. Common types include:

Fiberglass Reinforced Plastic (FRP) sandwich panels: with FRP as the skin and mostly XPS or PU foam as the core material, they are lightweight (about 2.5-3 kg/m2) and have excellent insulation performance, suitable for reefer compartments, with a durability of up to 15 years.
Aluminum foil composite insulation board: the skin is aluminum foil, the core material is polystyrene or polyurethane, heavier weight (about 5 kg/m2), but corrosion-resistant, suitable for food processing plant cold storage.
Polyurethane (PU) insulation board: PU foam as the core, strong thermal insulation (thermal conductivity of about 0.022 W/m-K), commonly used in building walls, thickness 30-150 mm.
Extruded polystyrene (XPS) insulated panels: XPS-based core, good water resistance (water absorption <1%), suitable for wet environments, such as refrigerated truck floors.

Reefer trucks are designed for low-temperature transportation, and the structure includes chassis, compartment and refrigeration system. The chassis is mostly a light or medium truck chassis (e.g. Ford Transit), carrying 1-2 tons. The compartments are made of FRP or aluminum sheet skin, XPS or PU foam core (30-120 mm thick, thermal conductivity 0.022-0.028 W/m-K), with good thermal insulation effect. Smooth inner wall, with drainage holes, non-slip floor, suitable for food, medicine transportation.

XPS (extruded polystyrene) and PU (polyurethane) foams are commonly used as core materials for insulation boards, and there is a clear difference between the two in terms of performance and application. The following are the main aspects of their differences:

Thermal insulation: PU foam has a lower thermal conductivity (about 0.022 W/m-K), but is superior to XPS (about 0.028 W/m-K), which provides better insulation and is suitable for more demanding cold storage environments.
Density and weight: XPS density is about 30-50 kg/m3, PU density is about 40-60 kg/m3, PU is slightly heavier, but stronger (compression strength is about 0.2-0.3 MPa, XPS is 0.15-0.25 MPa).
Waterproof: XPS has low water absorption (<1%) and is more suitable for humid environments; PU has a slightly higher water absorption (about 2-3%), but it can be improved by sealing, let’s say, a layer of plywood can be added to the outside, which can improve the waterproof performance.
Cost: XPS costs less, PU is more expensive.
Application: they are both excellent insulation foam materials, it is best to choose according to the actual needs.