Wall Sandwich Panels

Your Professional Wall Sandwich Panels Supplier

Our goal is to become your true partner in the field of wall sandwich panels in China. Henan Panels Industry Co., Ltd. have 17 years of experience in sandwich panel production. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

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Why Choose Us

Our certificates

Our company has obtained ISO9001 quality certification, CE and SGS certification, and obtained fire detection reports for various sandwich panels from the National Construction Engineering Quality Supervision and Inspection Center.

Our equipment

Henan Panels Industry Co.,Ltd has 2 set of Italian advanced PUMA polyurethane (rock wool) Fully automatic production lines, and it is equipped with 36-meter double-track unit, 6-component cyclopentane high-pressure online foaming technology and 4 decoilers.

Production market

Our products have been exported to more than 60 countries including the United States, Russia, Australia, New Zealand, the United Kingdom, France, Cambodia, Peru, Brazil, Cameroon, Congo, etc.

Our services

We provide CAD drawing design for the project. If the customer provides engineering drawings, our technicians will calculate the length and quantity of each sandwich panel, and draw the shape, size and quantity of all waterproof panels for customer confirmation. After receiving the goods, we provide technical installation guidance.

Advantages of Wall Sandwich Panels

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.

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.

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.

Aesthetic flexibility

The versatility of sandwich panels extends to their aesthetic appeal. With a variety of finishes and colors available, they can be tailored to meet specific design requirements, enhancing the visual appeal of buildings.

Eco-friendly and sustainable

Sandwich panels support sustainable construction practices. Their energy efficiency and durability contribute to reduced environmental impact over the building’s lifecycle.

Wall Sandwich Panels Specification

NO	Item		Unit	Tel.requirement
1	Density		Kg/m²	45±3
2	Heat conductivity		W/m.k	≤0.022
3	Compressive strength		Kpa	≥160
4	Combustion performance		--	B1
5	The bond strength between core polyurethane and surface steel		Mpa	＞0.1
6	Peeling performance	The core material on the surface	--	Uniform distribution
6	Peeling performance	The adhesive area of each stripping surface	--	≥90%
7	External steel plate	Thickness	mm	0.4~0.8
7	External steel plate	Coating	--	HDP/SMP/PE
8	Inner steel plate	Thickness	mm	0.4~0.6
8	Inner steel plate	Coating	--	HDP/SMP/PE

Product Features of Wall Sandwich Panels

Fireproof performance: Rock wool core material is a non combustible material with a fusion temperature of over 1000 ℃, which can effectively block flames and minimize fire losses in a fire.

Thermal insulation and energy saving: Rock wool has a low thermal conductivity (0.043w/m · k) and good insulation performance. Excellent node design ensures sealing performance and insulation effect.

Good sound insulation: The sound insulation volume is ≥ 30DB, effectively reducing the interference of external noise.

Water tightness/air tightness: Polyurethane edge sealing is used, and a smooth tongue can effectively prevent water from entering; The connection between the building parts of the board is sealed internally to maintain good airtightness.

Durable and sturdy: Made of high-quality rock wool or glass wool, with high hydrophobicity and long-lasting stability.

Facade aesthetics: Hidden screw node design, high flatness of the board surface, rich color of the paint coating, and long-lasting color.

Application of Wall Sandwich Panels

Cold storage facilities

Sandwich panels are a popular choice in building cold storages and refrigerated warehouses due to their excellent thermal insulation properties.

Commercial and industrial buildings

Many commercial and industrial buildings utilize sandwich panels for external and internal walls, roofs, and partitions.

Prefabricated structures

Prefabricated homes, offices, and modular buildings often incorporate sandwich panels due to their ease of assembly.

Clean rooms and controlled environments

In settings requiring controlled environments, such as laboratories, hospitals, and manufacturing units, sandwich panels are used due to their airtight nature.

Installation Requirements of Wall Sandwich Panels

After the wall frame is installed, place the first sandwich wall panel on the predetermined position on the steel frame. Fastened with bolts to ensure a strong connection between the wall panels and the steel frame. It ensures the stability and structural integrity of the sandwich wall panels.

Continue to install other sandwich panels, these panels are designed to interlock or overlap and can be tightly connected together to ensure a seamless appearance. While maintaining the thermal, acoustic and structural properties of the walls. To ensure proper weather protection, use a method of sealing the corners and edges.

Packing and Shipping of Wall Sandwich Panels

Packing	Load-carrying wooden pallets and non-load polystyrene pallets (pack- age edge)
Shipping	Shipped by road, sea, rail

FAQ

Q: What is a sandwich wall panel called?

A: Insulated metal panels, or IMPs, are frequently referred to as sandwich panels due to their structure: a layer of foam insulation nestled between two metal sheets.

Q: What is an alternative to sandwich panels?

A: Another alternative to sandwich panels is the use of metal panels. Metal panels, commonly made from steel, aluminum, or zinc, are a popular option for industrial and commercial buildings instead of sandwich panels. They offer several advantages, including being weightless, durable, and easy to install.

Q: How thick are sandwich panel walls?

A: Thicknesses of sandwich roof panels and sandwich wall panels to be used for the roof and walls of your building based on the types of insulation range from 40 mm to 200 mm for the PUR/PIR insulation type, 50 mm to 150 mm for the Mineral Wool insulation, and 40 mm to 150 mm for the EPS insulation.

Q: Are sandwich panels strong?

A: Despite their lightweight nature, sandwich panels are also incredibly strong and durable. They can withstand extreme weather conditions and have a long lifespan.

Q: Are sandwich panels load bearing?

A: In general, the sandwich panel could be designed and used as a non-load bearing or load bearing wall by considering various factors, such as the face and core thicknesses, material properties, joint design, and other end-use considerations.

Q: How much does a sandwich panel weight per m2?

A: On average, a sandwich panel with a thickness of 50mm - 100mm and made with a polystyrene (EPS) or polyurethane (PU) core, and steel or aluminium facing sheets, can weigh between 10 kg/m2 and 20 kg/m2.

Q: How long do sandwich panels last?

A: In terms of structural strength, sandwich panels can last more than 20 years if properly installed and regularly maintained. There are also other factors to consider, such as the chemical stability of the materials used, milling and cutting tolerance, bolting and joining aspects, grooving patterns, etc.

As one of the most professional wall sandwich panels manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy cheap wall sandwich panels for sale here from our factory.

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