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China PUR/PUR Polyurethane Cam-Lock Sandwich Panels Supplier - Durable Cold Storage Solutions from Factory
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.
Product Details
| 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/㎡ | 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
PPGI, or Preprinted Galvanized Iron, is a versatile metal material widely used in construction and manufacturing. It features a galvanized steel base that is coated with a layer of paint for excellent corrosion resistance and durability. Key features include its lightweight nature and its availability in a variety of colors and finishes for aesthetic customization. PPGI is also very environmentally friendly as its production process produces less waste. PPGI has a long service life and minimal maintenance requirements, making it ideal for roofing, wall cladding and other applications.
Typical Color (PPGI)
More Colors
PPGI has a variety of color finishes, we provide customized color service, please contact us for whatever color you need.
Other Surface Material
To obtain better or specific function, other surface materials can also be customized.
Such as Stainless Steel (SUS304 / SUS201), Aluminum, or other alloy (Zinc, Magnesium, Titanium, etc.).
Ti-Mg-Zn-Al Alloy
Embossed Aluminum
Stainless Steel (SUS304)
Extra Coating
The surface material can also be enhanced with various advanced coatings to improve its performance and durability.
Typical coating includes:
- PVDF (Polyvinylidene Fluoride): Known for its exceptional resistance to UV radiation, chemicals, and weathering, PVDF provides a glossy finish that retains color vibrancy over time. This makes it ideal for outdoor applications, particularly in architectural projects.
- HDP (High-Durability Polyester): HDP coatings offer superior durability and scratch resistance, making them suitable for high-traffic areas and industrial environments. They protect against corrosion and environmental factors, extending the lifespan of the material.
- EP (Epoxy Polyester): This coating combines the benefits of epoxy and polyester, providing excellent adhesion and resistance to chemicals and moisture. EP coatings are ideal for indoor applications and environments where chemical exposure is a concern.
These advanced coatings significantly enhance the functionality and longevity of surface, making it a preferred choice for various applications in construction and manufacturing.
More About PIR/PUR Cam Lock Sandwich Panel
The effectiveness of polyurethane cam lock sandwich panels in cold storage applications lies in their unique structure and the properties of polyurethane foam. The core material, polyurethane, is a thermoset polymer that expands during the manufacturing process to form a dense, closed-cell structure. This structure traps air, which is a poor conductor of heat, providing excellent insulation.
When installed in a cold storage facility, these panels create a barrier that minimizes heat transfer from the external environment to the interior space. This is critical to maintaining low temperatures, as even small fluctuations can cause temperature-sensitive products to spoil. The outer metal layer not only provides structural support but also protects the foam core from physical damage and environmental exposure.
Key features of PUR/PU Cam Lock Sandwich panels include:
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High Thermal Insulation Value: Polyurethane foam is one of the materials with the highest thermal resistance value among thermal insulation materials, with a thermal conductivity coefficient (λ) of approximately 0.023–0.025 W/m·K. This minimizes heat transfer and ensures the refrigerated environment effectively maintains the required temperature.
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Cam Lock Design: The cam lock mechanism enables fast and secure panel connection, ensuring a tight seal, minimizing air leakage and enhancing insulation performance.
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Lightweight: Although polyurethane panels have strong insulating properties, they are lightweight and easy to handle and install. This feature reduces the overall structural load on the building, which is particularly beneficial when retrofitting existing structures.
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Moisture-Proof: The closed-cell structure of polyurethane foam makes it resistant to moisture absorption and prevents mold growth, which is crucial in refrigerated environments with high humidity.
Frequently Asked Questions
Q What thicknesses are available for polyurethane cam lock sandwich panels?
Polyurethane cam lock sandwich panels are available in standard thicknesses of 100mm, 120mm, 150mm, and 200mm. Custom thicknesses can also be arranged based on your specific insulation requirements.
Q What is the thermal conductivity of the polyurethane core?
The polyurethane foam core has a heat transfer coefficient (Ud,s) of ≤0.024 W/[m×K], and a thermal conductivity coefficient (λ) of approximately 0.023–0.025 W/m·K, making it one of the most effective insulation materials available.
Q What surface materials can be used for the panels?
The panels support a wide range of surface materials including PPGI (Preprinted Galvanized Iron), Stainless Steel (SUS304/SUS201), Embossed Aluminum, and specialty alloys such as Ti-Mg-Zn-Al. Custom colors and finishes are also available upon request.
Q What advanced coatings are available for the surface material?
The surface material can be enhanced with PVDF (Polyvinylidene Fluoride) for outstanding UV and weather resistance, HDP (High-Durability Polyester) for superior scratch and corrosion resistance, or EP (Epoxy Polyester) for excellent chemical and moisture resistance in indoor environments.
Q Are these panels suitable for cold storage and refrigerated facilities?
Yes. Polyurethane cam lock sandwich panels are specifically well-suited for cold storage applications. Their closed-cell foam core minimizes heat transfer, the cam lock joint ensures airtight sealing, and the moisture-resistant structure prevents mold growth — all critical factors for maintaining stable low-temperature environments.
Q How does the cam lock joint system work and what are its advantages?
The cam lock mechanism is an integrated locking system built into the panel edges. During installation, panels are connected by engaging the cam lock, which creates a tight, secure joint without requiring additional fasteners. This ensures minimal air leakage, faster installation times, and enhanced overall insulation performance compared to conventional jointing methods.