Aluminum PU Sandwich Panel

Aluminum PU sandwich panels combine two outer aluminum sheets with a rigid polyurethane (PU) foam core in a three-layer structure. The aluminum skins, typically 0.1-1.0 mm thick, are available in various alloys and can receive surface treatments such as fluorocarbon coating or anodizing. The PU foam core, with density commonly between 28-80 kg/m³, provides low thermal conductivity. Total panel thickness ranges from 10-120 mm, with standard widths up to 2600 mm and lengths reaching 12 meters.

The PU foam core delivers effective thermal insulation, reducing heat transfer and maintaining stable indoor temperatures for energy efficiency. The aluminum skins provide structural strength, corrosion resistance, and protection from rain and wind. The panels are lightweight, facilitating handling and installation, and both aluminum and polyurethane are recyclable materials. Fire resistance can be enhanced through treatment.

Applications include cold storage rooms, refrigerated warehouses, and transportation vehicles such as refrigerated trucks, trailers, and ships where thermal insulation is critical. In building construction, the panels serve as exterior and interior wall cladding, roof panels, and facades for industrial, commercial, and agricultural structures.

The panels can be cut and shaped using high-precision Computer Numerical Control (CNC) machining. Many systems feature interlocking or snap-lock mechanisms for concealed fastening, creating a sleek appearance with hidden fixings. Customization options include dimensions, color, surface finish, and core density.

Your Trusted Supplier for Energy-Efficient Aluminum PU Sandwich Panels

As a leading manufacturer specializing in custom composite panel solutions, RaxPanel brings over 20 years of expertise from Hebei, China, to the production of high-quality Aluminum PU Sandwich Panels. Our in-house R&D and manufacturing capabilities ensure every panel is engineered for exceptional strength, thermal insulation, and durability. We utilize a rigid polyurethane foam core between premium aluminum skins, a composition that delivers superior energy efficiency and a sleek, modern aesthetic for building facades, roofs, and partitions.

This direct manufacturing model, supported by a daily output exceeding 1500 m², allows us to provide tailored solutions for projects worldwide. Our panels are customizable in color, finish, and size to meet specific architectural requirements. Trust RaxPanel for reliable, high-performance building materials that combine innovative design with proven manufacturing excellence, serving clients across more than 30 countries.

Parameter Specification / Value
Panel Dimensions
Total Thickness 10 mm – 120 mm
Width Up to 2600 mm
Length Up to 12 m
Aluminum Skin
Material Thickness 0.1 mm – 1.0 mm
Common Alloy Grades 1050, 1060, 1100, 3003, 3004, 3105, 5005, 5052, 5083, 6061, 6063
Surface Treatment Fluorocarbon coating, Anodizing, Embossed, Matte, Glossy
Surface Color Standard RAL colors, Customizable
Core Material
Type Rigid Polyurethane (PU) Foam
Density 28 kg/m³ – 80 kg/m³
General Properties
Key Features Lightweight, High Thermal Insulation, Corrosion Resistant, Weather Resistant, Fire Resistant
Primary Applications Cold Storage Walls/Roofs, Refrigerated Truck Bodies, Building Facades & Cladding, Industrial Partitions
Processing & Installation
Fabrication High-precision CNC Machining
Fastening System Interlocking / Concealed Snap-Lock Mechanism





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    Frequently Asked Questions

    What are Aluminum PU Sandwich Panels composed of?

    Aluminum PU Sandwich Panels consist of two outer layers of aluminum sheets and a core of polyurethane foam (PU). The aluminum sheets provide strength, durability, and corrosion resistance, while the PU foam core offers excellent thermal insulation and contributes to the panel's lightweight nature.

    What are the key features and benefits of these panels?

    Key features include lightweight construction for easy handling, effective thermal insulation to reduce energy costs, weather resistance due to protective aluminum skins, fire resistance with fire-retardant options, aesthetic versatility with various colors and finishes, and environmental friendliness as both aluminum and PU foam are recyclable.

    What are the common applications for Aluminum PU Sandwich Panels?

    These panels are widely used in cold storage rooms for walls and roofs, in transportation for refrigerated trucks and trailers, in building construction for exterior and interior walls and roofs of factories, warehouses, and commercial buildings, and in industrial applications like clean rooms and soundproof enclosures.

    How are the panels installed and what makes installation easy?

    The panels are designed for straightforward installation due to their lightweight nature. For roofing applications, they often feature an interlocking or snap-fit system for quick, secure attachment without visible screws. They can be easily cut and processed for assembly on frames. Note: RaxPanel provides manufacturing and supply services only; installation is handled by clients or contractors, with technical support available.

    What is the thermal insulation performance and energy efficiency?

    The polyurethane foam core has low thermal conductivity, typically ranging from 0.020 to 0.030 W/m·K, providing excellent thermal insulation. This helps maintain stable indoor temperatures, reduces heat transfer, and lowers heating or cooling costs, contributing to significant energy savings.

    What is the fire resistance and service life of the panels?

    The panels offer fire resistance through fire-retardant PU foam cores and aluminum skins with high melting points, achieving ratings such as B1 grade. With proper installation and maintenance, the service life can exceed 45 years, ensuring long-term durability and performance.

    Can the panels be customized to meet specific requirements?

    Yes, as a direct manufacturer with over 20 years of experience, RaxPanel specializes in custom composite panel solutions. Customization includes total thickness from 10mm to 120mm, width up to 2600mm, and length up to 12 meters. Options include aluminum sheet thickness from 0.1mm, aluminum grades such as 1050, 3003, and 5052, surface treatments like fluorocarbon coating or anodizing, surface colors in standard RAL or custom patterns, and PU foam density from 28 to 80kg/m³.

    What measures are in place to ensure consistent quality and performance?

    We ensure high standards through a controlled manufacturing process using state-of-the-art equipment, including high-precision CNC machining for dimensional accuracy. Production involves automated lines and spray adhesive or vacuum compression technology for a strong bond between aluminum skin and PU foam core. Strict quality control is applied from raw materials to final product, backed by a daily output of over 1500 m² and decades of expertise serving clients in over 30 countries.

    What technical data and support do you provide for project planning?

    We provide comprehensive technical information, including specifications on thermal conductivity, compression strength, fire resistance ratings, and material densities. This data covers the performance of aluminum skins and PU foam core under various conditions, helping ensure compliance and achieve desired insulation, durability, and safety. Specific values are detailed in the relevant FAQs.

    How do you manage logistics and supply for reliable delivery?

    As a direct manufacturer based in Hebei, China, we maintain strong control over our supply chain and production schedule. Experienced in handling bulk orders for OEMs, distributors, and large projects, we serve clients in over 30 countries with secure packaging for shipping. Our daily production capacity of over 1500 m² enables efficient fulfillment of large orders, ensuring supply chain stability and reliable delivery timelines.

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