China PUR/PU Polyurethane Cam-Lock Sandwich Panels - Reliable Insulation Suppliers and Factory for Cold Storage Solutions

In the refrigeration industry, maintaining optimal temperature and insulation is crucial for preserving perishable goods. Among the most effective solutions are PUR/PU - polyurethane cam lock sandwich panels, which are specifically designed to deliver superior thermal insulation, structural stability, and simple installation. As a leading choice among China suppliers, these panels are perfect for a wide range of cold storage applications. Our PUR/PU cam lock sandwich panels offer exceptional heat resistance, lightweight construction, moisture resistance, and long-lasting durability, making them an ideal option for any cold storage facility. Trust our factory for high-quality polyurethane panels that meet your insulation needs effectively

Product Description

Products Description

Polyurethane cam lock sandwich panels consist of a core made of polyurethane foam, sandwiched between two outer layers, which are typically made from sheet metal such as galvanized steel or aluminum. Panels are available in a variety of thicknesses, typically 100mm to 200mm, depending on specific insulation requirements.

Technical Parameters
THICKNESS (mm) Effective Width (mm) Length (m) Density (Kg/m³) Fire Resistance Weight (Kg/㎡) Heat Transfer (Ud,s) Surface (mm)
100 920 / 960 / 1000 10m Max 40±2 (Customizable) B2 Grade 11.8 ≤0.024 W/[m·K] 0.3–0.8
120 12.7
150 13.9
200 16.1
The Joint System

The cam-lock design with split joint of the cam-lock sandwich panels are widely used in industrial, commercial, and agricultural buildings, including warehouses, cold storage facilities and manufacturing plants.

Their ease of installation and low maintenance requirements make them a cost-effective option for modern construction projects, helping to increase sustainability and efficiency.

Cam-Lock Joint Detail
Cam-Lock Assembly
Surface Profile
Surface Profile Options
Miro Smooth Linear Embossed
Customizable Surface Materials

Our PUR Cam Lock Sandwich Panel have multiple customizable surface steel material and color choices such as PPGI, Stainless steel, embossed aluminum etc. Their durability, moisture resistance and chemical resistance further enhance their appeal.

PPGI (Prepainted Galvanized Iron)

PPGI features a galvanized steel base coated with paint for excellent corrosion resistance. It is lightweight, available in various colors, and environmentally friendly with a long service life.

PPGI Typical Colors
Typical Color (PPGI)
Custom PPGI Colors
More Color Options
Other Specialty Materials
Ti-Mg-Zn-Al Alloy
Ti-Mg-Zn-Al Alloy
Embossed Aluminum
Embossed Aluminum
Stainless Steel
Stainless Steel (SUS304)
Advanced Coatings
  • PVDF (Polyvinylidene Fluoride): Exceptional resistance to UV radiation and chemicals, ideal for outdoor architectural projects.
  • HDP (High-Durability Polyester): Superior scratch resistance and durability for high-traffic industrial environments.
  • EP (Epoxy Polyester): Excellent adhesion and chemical resistance, perfect for indoor environments with chemical exposure.
Coating Technology
Why Choose PIR/PUR Cam Lock Panels?
🌡️ High Thermal Insulation

Thermal conductivity coefficient (λ) of 0.023–0.025 W/m·K minimizes heat transfer and maintains stable temperatures.

🔒 Cam Lock Design

Ensures fast, secure connections with tight seals that minimize air leakage and enhance efficiency.

⚖️ Lightweight Structure

Strong yet easy to handle, reducing the overall structural load and installation complexity.

💧 Moisture-Proof

Closed-cell structure prevents moisture absorption and mold growth, essential for refrigerated environments.

Frequently Asked Questions
What thicknesses are available for polyurethane cam lock sandwich panels?
Panels are available in standard thicknesses of 100mm, 120mm, 150mm, and 200mm to suit various insulation needs.
What is the cam lock joint and what are its advantages?
It is a split-joint locking mechanism that enables fast, secure onsite connection, ensuring an airtight seal and reducing labor costs.
What surface materials and finishes can be customized?
Options include PPGI, Stainless Steel (SUS304/201), Embossed Aluminum, and alloys like Ti-Mg-Zn-Al with Miro, Smooth, or Linear profiles.
Are these panels suitable for cold storage and food industry applications?
Yes, the outstanding thermal insulation and moisture resistance make them ideal for food processing, pharmaceuticals, and cold rooms.
What is the fire resistance rating of these panels?
The polyurethane core meets the B2 Grade fire resistance classification, complying with standard safety requirements for commercial use.
What are the typical applications for these panels?
They are widely used in warehouses, cold storage, food plants, pharmaceutical storage, and modern manufacturing facilities.

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