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China PUR/PU Polyurethane Cam-Lock Sandwich Panels - Reliable Insulation Suppliers and Factory for Cold Storage Solutions
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:
- 🌡️ 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.
- 🔒 Cam Lock Design: The cam lock mechanism enables fast and secure panel connection, ensuring a tight seal, minimizing air leakage and enhancing insulation performance.
- ⚡ 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.
- 💧 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
❓ 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. The appropriate thickness depends on your specific insulation requirements and application environment.
❓ What is the cam lock joint and what are its advantages?
The cam lock joint is a split-joint locking mechanism that enables fast and secure panel-to-panel connection on site. It ensures a tight, airtight seal between panels, minimizes air leakage, enhances overall insulation performance, and significantly reduces installation time and labor costs.
❓ What surface materials and finishes can be customized?
Surface materials include PPGI (Prepainted Galvanized Iron), Stainless Steel (SUS304/SUS201), Embossed Aluminum, and specialty alloys such as Ti-Mg-Zn-Al. Surface profiles include Miro, Smooth, Linear, and Embossed. Additional coatings such as PVDF, HDP, and EP are also available for enhanced performance.
❓ Are these panels suitable for cold storage and food industry applications?
Yes. The closed-cell polyurethane foam core provides outstanding thermal insulation (λ ≈ 0.023–0.025 W/m·K), and the moisture-resistant structure prevents mold growth. These properties make PUR cam lock sandwich panels an ideal choice for cold storage rooms, food processing facilities, and pharmaceutical warehouses.
❓ What is the fire resistance rating of these panels?
The polyurethane core of these sandwich panels meets B2 Grade fire resistance classification. This makes them suitable for a wide range of commercial, industrial, and agricultural building applications while complying with standard fire safety requirements.
❓ What are the typical applications for PUR cam lock sandwich panels?
PUR cam lock sandwich panels are widely used in warehouses, cold storage facilities, food processing plants, pharmaceutical storage, manufacturing plants, and commercial or agricultural buildings. Their lightweight nature, excellent insulation, and easy installation make them a versatile and cost-effective solution for both new construction and building retrofits.