Low Cost Environmental Economical Customized Wall Roof Insulation Metal Sandwich Panel 50 75 100 150 200mm
Sandwich panels are a modular building material designed to cover buildings and structures. These panels consist of two layers that form the outer structure and ensure form, weather resistance, and rigidity. They contain a core that provides thermal and acoustic insulation properties.
Specifications |
Metal steel sheet thickness | 0.2~0.8mm |
Panel thickness ranges | 50mm~200mm |
Panel width ranges | 500mm~1150mm |
Panel length | Customized |
Surface | Prepainted |
EPS/PU/Rock wool Thickness | 50mm 75mm 100mm 150mm 200mm |
Water absorption rate | <0.018 |
Fireproof Grade | B1 |
Temperature range | -40~200 |
Color | Customized |
- Efficient heat preservation & fire prevention: thermal conductivity 0.017~0.024 W/m-K
- Closed pore rate >90% : moisture-proof and water-proof
- Blind hole design: anti-seepage, freeze-thaw & corrosion resistance
- Energy saving, environmental protection & economy: full closed cell structure reduces energy consumption, fluorine-free foaming technology is environmentally friendly, long-term use significantly reduces heating/cooling costs.
- B1 fireproof standard: temperature resistance -50℃~150℃, no harmful gas release.
- Lifespan: over 30 years
- Application areas: building facades, industrial facilities, providing fire protection, sound insulation, decorative integrated customized solutions.


Sandwich panels are incredibly versatile and find applications across multiple industries. Let’s explore some of the most common uses:
- Building Construction
Sandwich panels are frequently employed in the construction of walls, roofs, and floors in residential, commercial, and industrial buildings. They offer excellent thermal insulation, reducing energy consumption and maintaining comfortable indoor temperatures. - Transportation
In the automotive and aerospace industries, sandwich panels are used to construct lightweight and fuel-efficient vehicles and aircraft. The combination of strength and low weight makes them ideal for these applications. - Cold Storage
Sandwich panels with insulating cores are widely used in cold storage facilities, ensuring that temperature-sensitive goods remain at the desired temperature. - Industrial Equipment
These panels are employed in the creation of cleanrooms, partitions, and enclosures for various industrial purposes, providing durability and easy maintenance. Wall Panels | Roofing Panels |
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Suspended ceiling panels | Cold Storage Panels |
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A complete set of PU Rock Wool sandwich panel continuous production line, featuring the world's advanced polyurethane core production process and seven-component on-site foaming technology, ensuring stable product performance. The ultra-long dual-track guarantees the flatness of the product's surface.
- Environmental Concept, Green Development
- Strong Technical Strength
Complete Qualifications, Reliable Quality - Annual production can reach 1 million square meters
- Panel cutting precision error(±1mm)
- Fully automated production
- Company Profile

Shandong Lanjing Building & Construction Co., Ltd. is a professional manufacturer for Steel structure building,Container House and Prefab house in China for more than 10 years.
Exported to 100+ countries and completed 500+ projects.
IS09001, BV, SGS, TUV audited
Lanjing Building & Construction offers comprehensive ONE-STOP services, delivering customized solutions that include Consultation, R&D, Design, Manufacturing, Installation, Overseas project supervision and after-sales support.
We specialize in creation of high-quality Steel structure Warehouse, Workshop, High-rise steel fame building and Container house for Labor camp, worker container etc.
We provide steel building to clients in the sectors of Oil & Gas, Mining, Energy dormitory, Site office, Shower container. Toilet Infrastructure and Construction projects Steel Structure built his reputation Reliability and Service.
Our factory is located in Weifang, China, with a factory area of more than 12 hectares ((120.000SOM )and a registered capital of CNY50 Million, after more than 10 years of development, we have strong technical strength and comprehensive product lines.Steel Structure has completed 500+ projects in more than 100 countries, We has built long-term partnerships with different international companies as well as organizations & government. - FAQ
Q: Is your company a factory or trading company?
A: We are manufacturer with foreign trade department, so you can get competitive price as well as professional service. And you are always welcomed to visit our factory at any time.
Q: What are your main products?
A: Steel structure buildings, sandwich panel, prefabricated house.
Q:How can we guarantee quality?
A: Always a pre-production sample before mass production;
Always final Inspection before shipment;
Q: What's the quality assurance you provide and how do you make quality control?
A: Quality-first is our core value. LJ steel structure quality assurance team and quality control team have developed a rigorous quality inspection system based on ISO9001. Testing Laboratory guarantees qualified raw materials and high- standard product.
Main Products Steel structure Building Prefabricated container house Metal Sandwich Panels |  |