Refrigerated truck body panels are insulated FRP or aluminum-skinned sandwich panel systems engineered for refrigerated truck bodies, reliably maintaining internal temperatures from -25°C to +5°C for perishable transport. The outer skins use gel-coated fiberglass reinforced plastic (FRP) at 1.4-2.0mm thickness, with smooth aluminum or pre-painted steel available as alternative surfaces to match specific fleet requirements.
The polyurethane (PU) foam core delivers superior thermal insulation with a density of 40-45 kg/m³ and thermal conductivity of 0.022-0.024 W/(m·K), ensuring stable cold chain performance. For cost-sensitive applications, extruded polystyrene (XPS) cores are offered at 35-40 kg/m³ density with thermal conductivity of 0.027-0.034 W/(m·K), suitable for moderately insulated transport.
Standard panel thickness ranges from 50mm to 125mm, with 60mm, 80mm, and 100mm as the most common configurations for chilled and frozen applications. Panels are available in widths up to 2,700mm and custom lengths up to 10,000mm, joined by tongue-and-groove or overlapping profiles sealed with polyurethane adhesive to eliminate thermal bridging and air leakage.
These insulated panels serve frozen and chilled food distribution, pharmaceutical cold chain, perishable logistics, reefer semi-trailers, and mobile catering units. They meet ATP compliance standards, achieving Normally Insulated (IN) K-values ≤ 0.70 W/m²K and Heavily Insulated (IR) K-values ≤ 0.40 W/m²K, with B1 fire resistance classification per DIN 4102.
Your Trusted Manufacturer for Refrigerated Truck Body Panel
RaxPanel is a direct manufacturer of insulated truck body panels based in Hebei, China, with over 15 years of continuous production experience. Our in-house R&D, design, and production capabilities deliver consistent thermal performance, bonding strength, and dimensional accuracy for refrigerated transport fleets operating worldwide.
With a daily production capacity exceeding 1,700 m² and exports to more than 50 countries and regions, RaxPanel combines scale with strict quality control to meet ATP classifications and international transport standards. Every panel undergoes verified lamination and bonding to support reliable cold chain operations over long service life.
- Gel-coated FRP skins at 1.4-2.0mm with B1 fire resistance classification per DIN 4102.
- PU foam core at 40-45 kg/m³ with thermal conductivity of 0.022-0.024 W/(m·K).
- ATP-compliant K-values: Normally Insulated (IN) ≤ 0.70 W/m²K and Heavily Insulated (IR) ≤ 0.40 W/m²K.
- 304 stainless steel door frames, EPDM rubber seals, and aluminum alloy edge protectors.
| Parameter | Value |
|---|---|
| Skin Material | Gel-coated FRP / Aluminum / Pre-painted Steel |
| Skin Thickness | 1.4-2.0 mm |
| Core Material | PU foam / XPS |
| Core Density | PU: 40-45 kg/m³; XPS: 35-40 kg/m³ |
| Thermal Conductivity | PU: 0.022-0.024 W/(m·K); XPS: 0.027-0.034 W/(m·K) |
| Thickness Range | 50-125 mm (standard: 60, 80, 100 mm) |
| Max Width | Up to 2,700 mm |
| Max Length | Up to 10,000 mm |
| Adhesion Strength | > 100 kPa (EN 14509) |
| Joint System | Tongue-and-groove / overlapping with PU adhesive |
| Temperature Range | -25°C to +5°C |
| ATP Classification | IN: K ≤ 0.70 W/m²K; IR: K ≤ 0.40 W/m²K |
| Fire Resistance | B1 (DIN 4102) |
| Accessories | 304 stainless frames, EPDM seals, aluminum edge protectors |
Refrigerated Truck Body Panel Buying Guide & FAQ
Selecting the right refrigerated truck body panel requires understanding thermal performance, core materials, joint integrity, and ATP compliance. This guide answers the most common questions from fleet operators, body builders, and cold chain logistics managers evaluating insulated sandwich panels for perishable and frozen transport applications.
1. What is the difference between PU and XPS core refrigerated panels?
PU (polyurethane) foam cores offer superior thermal conductivity of 0.022-0.024 W/(m·K) at 40-45 kg/m³ density, ideal for deep-frozen applications down to -25°C. XPS (extruded polystyrene) cores provide 0.027-0.034 W/(m·K) at 35-40 kg/m³, a cost-effective option for chilled transport above 0°C. PU is recommended when Heavily Insulated (IR) ATP classification is required.
2. What thickness do I need for frozen transport?
For deep-frozen transport at -25°C, 100mm or 125mm panels are recommended to achieve Heavily Insulated (IR) K-values ≤ 0.40 W/m²K. For chilled distribution between 0°C and +5°C, 60mm or 80mm panels meet Normally Insulated (IN) requirements with K-values ≤ 0.70 W/m²K, optimizing both vehicle weight and operating cost.
3. How is the skin-to-core adhesion verified?
Adhesion is produced by continuous high-pressure vacuum lamination that creates monolithic skin-to-core bonds, with bond strength exceeding 100 kPa per EN 14509. This prevents delamination under thermal cycling, road vibration, and chassis torsional flex, ensuring the panel maintains structural and thermal integrity throughout the truck body service life.
4. What joint systems prevent thermal bridging?
Tongue-and-groove and overlapping profiles are sealed with polyurethane adhesive to eliminate thermal bridging and air infiltration at panel joints. This continuous seal maintains the internal temperature envelope, supports ATP compliance, and prevents moisture condensation that could otherwise degrade the foam core or corrode surrounding hardware.
5. Which accessories complete a refrigerated body system?
RaxPanel supplies 304 stainless steel door frames, hinges, and corner wraps for corrosion resistance, EPDM rubber door seals for airtight closure, and aluminum alloy edge protectors for impact durability. These accessories complete the refrigerated body system and extend service life under demanding cold chain duty cycles.