Sandwich Panel
Why Choose Us
Production Capacity
Producing 60,000 tons of high-quality steelwork components for buildings, 2,000,000 square meters of rock wool/glass wool metal curtain wall sandwich panels,1,000,000 square meters of polyurethane cold storage panels,3,000,000 square meters of steel truss decks, and about 10,000,000 square meters of all types of profiled steel sheets and components for prefabricated buildings each year.
Production Market
Duowei has established itself as the world's leading integrated service provider of metal enclosure systems for buildings. Duowei has established modern lean manufacturing bases in Tianjin, Nantong, Shenyang, Guangdong and Sichuan. Duowei has also set up overseas offices in major markets such as Southeast Asia, Africa, and South America, serving more than 10,000 clients, with its products reaching markets in over 90 countries and regions across the globe.
Finished product inspection
Duowei has its own independent testing center with national accreditation.Wind resistance, heat transfer coefficient, bending capacity, metal low temperature impact, metal chemical composition analysis, oxygen index, bonding strength and salt spray test more than 40 test capabilities, to ensure that qualified products delivered to customers.
Quality Assurance
DUOWEI have AISC certification, ISO9001 certification and CE certification, we provide steel structure products and services that meet the standards in more than 90 countries and regions worldwide.
Advantages of Sandwich Panel
Outstanding Thermal Insulation
One of the most significant attributes of sandwich panels is their exceptional thermal insulation. The insulating core material effectively reduces heat transfer, helping maintain stable interior temperatures. This feature is particularly beneficial in reducing energy costs for heating and cooling, making buildings more energy-efficient and environmentally friendly.
Enhanced Fire Safety
Many sandwich panels are designed with fire safety in mind. Materials like rockwool and PIR offer increased fire resistance, slowing the spread of flames and providing additional time for evacuation and firefighting efforts. This aspect is crucial in commercial and industrial buildings where fire safety is paramount.
Excellent Acoustic Properties
Sandwich panels also excel in sound insulation. The density and composition of the core material can significantly reduce noise transmission, making these panels ideal for environments where soundproofing is essential, such as recording studios, industrial facilities, and office buildings.
Structural Strength and Durability
Despite their lightweight nature, sandwich panels provide considerable structural strength. This strength is attributed to the composite action between the outer skins and the core, allowing the panels to withstand various loads and impacts. Their durability ensures a long lifespan with minimal maintenance, making them a cost-effective solution for many construction projects.
Types of Sandwich Panel
Fire Resistance Rock Wool Mineral Wool Sandwich Panel For Roof
Duowei Fire resistance rock wool mineral wool sandwich panel for roof is the perfect choice for prefabricated steel buildings' roof. It features a non-combustible, high-density rock wool core paired with high-quality color-coated steel sheets, offering Class A fire resistance, excellent thermal insulation, and outstanding soundproofing.
Fire Rated Rock Wool Mineral Wool Sandwich Panel With PIR Side Sealing For Roof
Fire rated rock wool mineral wool sandwich panel with PIR side sealing for roof is an integrated roof sandwich panel, no need to lay on-site, all by the factory prefabricated integration. A wide selection of core materials for unmatched thermal insulation and fire resistance.
Fire Resistance Rock Wool Mineral Wool Sandwich Panel
It features a non-combustible, high-density rock wool core paired with high-quality color-coated steel sheets, offering Class A fire resistance, excellent thermal insulation, and outstanding soundproofing.
Insulated Metal PIR PU Foam Sandwich Panel
It is superior to PUR in terms of fire resistance, stability, mechanical strength, and production efficiency. Duowei produces compact PIR products by adding excessive isocyanurate, adopting ring structure and higher isocyanurate index.
Glass Wool Sandwich Panel For Wall
He glass wool board's porous structure effectively absorbs sound, making it the best choice for industrial buildings requiring soundproofing and noise reduction. With Grade A fire-rated glass wool, DUOWEI glass wool sandwich panels for wall offer superior thermal insulation and fire resistance.
Clean Room Sandwich Panel
The clean room sandwich panel has a unique design keel to ensure the air and water tightness of the clean room and meet the requirements of high-level purification. Rich and diverse core material combination, adapt to different use environment.
Specification
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Thickness |
50/75/100/120/150(mm) |
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Effective width |
950, 980, 1150(mm) |
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Length |
According to customer' s request, less than 11.8m. |
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Materials |
Polystyrene foam board, Color steel tile |
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Structure |
Upper and lower layer: Color steel sheet |
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Middle: Polystyrene foam board |
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EPS density |
10/12/14/15/16/18/20 kg/m³ |
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Conventional color |
White, sea blue, red etc. |
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Lifetime |
More than 60 years |
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Performance |
Light weight, heat insulation, water resistant, green and environmental |
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Usage |
Roof, Wall, Ceiling, Partition |
The Sandwich Panel Core Material
Polyurethane (PU) and Polyisocyanurate (PIR): These are popular choices for their exceptional thermal insulation properties. PU and PIR cores are known for their low thermal conductivity, making them ideal for energy-efficient buildings. Additionally, PIR offers enhanced fire resistance, making it a safer choice in fire-prone environments.
Rockwool: Favoured for its fire-resistant and soundproofing qualities, rockwool is a mineral wool made from volcanic rock. This material is especially suitable for buildings where sound insulation and fire safety are paramount.
Expanded Polystyrene (EPS) and Extruded Polystyrene (XPS): They are generally less insulating and structurally stable than PU and PIR. EPS and XPS may exhibit performance degradation under extreme temperature changes. They may also exhibit lower fire resistance in fire situations and may not be the best choice for special applications requiring high standards of insulation and fire safety.
Application of Sandwich Panel
Building Construction
Sandwich panels are commonly used in building construction for roofing, walls, and floors. They provide excellent thermal insulation, are lightweight, and can be quickly and easily installed on site.
Cold Storage and Refrigeration
Sandwich panels are ideal for cold storage and refrigeration applications, such as walk-in freezers and coolers, because of their high insulation properties and ability to maintain consistent temperatures.
Transportation
Sandwich panels are used extensively in the transportation industry, particularly in the construction of trailers, truck bodies, and refrigerated vans. They offer lightweight construction and excellent insulation properties.
Aerospace
Sandwich panels are used in the aerospace industry for their high strength-to-weight ratio and thermal insulation properties. They are commonly used in the construction of aircraft components such as wings and fuselage.
Industrial Applications
Sandwich panels are used in a wide range of industrial applications, such as manufacturing plants, warehouses, and distribution centers, because of their durability, insulation properties, and ease of installation.
Cleanroom Environments
Sandwich panels are used in cleanroom environments, such as pharmaceutical manufacturing facilities and research laboratories, to provide a sterile and controlled environment.
Packaging and Delivery
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Packaging Details |
Side sealing with specially customized steel pallets for long distance sea transport. Each container can place two steel pallets. Maximize the use of container space. Pearl cotton and polystyrene pads will be used on the packaging to reduce sandwich panel impact. |
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Delivery time |
Generally, it will take 10 to 20 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order. |
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Payment term |
T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance. 100% Trade assurance |
FAQ
As one of the most professional sandwich panel manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy high-grade sandwich panel from our factory.
sandwich panel