China PUR/PUR Polyurethane Cam-Lock Sandwich Panels Supplier - Durable Cold Storage Solutions from Factory

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China PUR/PUR Polyurethane Cam-Lock Sandwich Panels Supplier - Durable Cold Storage Solutions from Factory

In the refrigeration industry, maintaining the right temperatures and ensuring effective insulation is crucial for preserving perishable goods. One of the best solutions for constructing cold storage facilities is the use of PUR/PU - polyurethane cam lock sandwich panels. As a leading choice for cold storage insulation, these panels are designed to provide exceptional thermal insulation, structural integrity, and ease of installation, making them perfect for various applications. Manufactured by top suppliers in China, these PUR/PU cam lock sandwich panels offer outstanding heat resistance, lightweight properties, moisture resistance, and durability. When looking for reliable cold storage solutions, consider sourcing from reputable factories that specialize in high-quality polyurethane sandwich panels

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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

TECHNICAL PARAMETERS OF POLYURETHANE CORE SANDWICH PANEL
THICKNESS	Effective Width	Length	Density	Fire Resistance	Weight	Heat Transfer Coefficient Ud,s	Surface Thickness	Surface Material
mm	mm	m	Kg/m³	/	Kg/m²	W/[m x K]	mm	/
100	920 / 960 / 1000	10m Max	40±2 (Customizable)	B2 Grade	11.8	≤0.024	0.3–0.8 (Customized)	Customized
120					12.7
150					13.9
200					16.1

The Joint

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.

Surface Profile

Miro Smooth Linear Embossed

Surface Material

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 (Pre-painted 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 and minimal maintenance, it is ideal for roofing and wall cladding.

🎨 Color Options

Typical Colors

More Colors Available

🛠️ Other Surface Materials

Ti-Mg-Zn-Al Alloy

Embossed Aluminum

Stainless Steel (SUS304)

🛡️ Advanced Coatings

PVDF (Polyvinylidene Fluoride): Exceptional resistance to UV radiation and chemicals; retains color vibrancy over time.
HDP (High-Durability Polyester): Superior scratch resistance and protection against environmental factors.
EP (Epoxy Polyester): Excellent adhesion and moisture resistance, ideal for indoor chemical-exposed environments.

Technical Insights & Performance

The effectiveness of polyurethane cam lock sandwich panels in cold storage lies in their unique structure. The polyurethane core is a thermoset polymer that forms a dense, closed-cell structure, trapping air to provide world-class insulation.

These panels create a barrier that minimizes heat transfer, critical for maintaining stable low temperatures and preventing spoilage. The outer metal layer provides structural support and protects the foam core from physical damage.

🚀 Key Features

🌡️

High Insulation: Thermal conductivity (λ) of approx 0.023–0.025 W/m·K.

🔒

Cam Lock: Fast, secure connection ensuring an airtight seal.

⚖️

Lightweight: Easy to handle, reducing structural load.

💧

Moisture-Proof: Closed-cell structure resists mold and water absorption.

Frequently Asked Questions

Q What thicknesses are available for these panels?

Standard thicknesses include 100mm, 120mm, 150mm, and 200mm. Custom thicknesses are available upon request to meet specific insulation needs.

Q What is the thermal conductivity of the polyurethane core?

The core has a heat transfer coefficient (Ud,s) of ≤0.024 W/[m·K] and a thermal conductivity (λ) of approximately 0.023–0.025 W/m·K.

Q Which surface materials can I choose?

Options include PPGI, Stainless Steel (SUS304/SUS201), Embossed Aluminum, and alloys like Ti-Mg-Zn-Al with various custom colors.

Q Are advanced coatings available for harsh environments?

Yes, we offer PVDF for UV resistance, HDP for high durability and scratch resistance, and EP for chemical and moisture protection.

Q Why is the cam lock system preferred for cold storage?

The cam lock mechanism ensures a tight, airtight joint that minimizes thermal bridging and air leakage, which is essential for maintaining refrigeration efficiency.

Q Can these panels prevent mold growth?

Yes. The closed-cell structure of the polyurethane foam is naturally resistant to moisture absorption, preventing the growth of mold and mildew in humid environments.