Sandwich Panel Door

The door leaf structure of industrial sandwich panel doors imitates the sandwich panels used in buildings and adopts the classic "sandwich" structure:

Outer layer (panel): usually made of durable metal plates, the most common ones are:

Galvanized steel plate: economical and practical, rust-proof.

Color-coated steel plate: adding a colored coating (such as PVDF, HDP, PE) to the galvanized substrate to provide better weather resistance, corrosion resistance and aesthetics.

Stainless steel plate: the highest level of corrosion resistance, suitable for harsh environments such as food, medicine, and chemicals.

Core material (filling layer): The thermal insulation material filled between the two layers of panels is the key to determining the performance of the door (insulation, sound insulation, fire protection).

Sandwich panel door common core materials include:

Polyurethane foam: excellent thermal insulation performance (low thermal conductivity), relatively light weight, high strength, dense and seamless filling. It is the first choice for cold storage doors and places requiring high insulation.

Rock wool/mineral wool: Excellent fireproof performance (Class A non-combustible material), good sound insulation effect, and thermal insulation performance is inferior to PU. Suitable for places with high fire protection requirements (such as fire partition doors, doors on factory firewalls).

Extruded polystyrene board: Good thermal insulation performance, high strength, good moisture resistance, but average fire resistance.

Honeycomb paper/aluminum honeycomb: Light weight, certain strength and sound insulation effect, poor thermal insulation performance. Mostly used for doors that do not require high thermal insulation but need to be lightweight or soundproof.

Inner layer (panel): Usually the same or similar material as the outer layer, sometimes the inner layer uses a plate that is easier to clean or meets specific environmental requirements (such as food-grade stainless steel inner plate).

Excellent thermal insulation performance: This is one of its most prominent advantages, especially when using PU or XPS core materials. It can effectively block indoor and outdoor heat transfer and significantly reduce cooling or heating energy consumption. It is an ideal choice for cold storage, constant temperature workshops, food processing plants, etc.

Good sound insulation effect: The multi-layer structure and the filled core material can effectively absorb and block noise, especially the rock wool core material has better sound insulation effect, which is suitable for factories with high noise or places that require a quiet environment.

Excellent strength and stiffness: The sandwich structure gives the door leaf high bending strength and overall stiffness, is not easy to deform, and can withstand certain wind pressure and impact.

Lightweight (relative to its strength): Compared with solid doors of the same strength, the weight of sandwich panel doors is greatly reduced, which reduces the burden on door frames and hinges, makes opening and closing easier, and extends the life of hardware.

Beautiful and durable: Metal panels (especially color-coated panels and stainless steel) have a neat and modern appearance, are easy to clean and maintain, are corrosion-resistant and weather-resistant, and have a long service life.

Optional fire protection performance: By choosing different core materials (such as rock wool), different levels of fire protection requirements (such as Class A and Class B fire doors) can be met.

Good sealing: The edge of the door leaf is usually designed with a sealing groove, and high-performance sealing strips (such as EPDM rubber) can be installed to effectively prevent the infiltration of air, dust, water vapor and insects, meeting the requirements of clean rooms or dustproof.

Diverse surface treatment: Color-coated plates provide a variety of color options, and stainless steel plates have a variety of treatments such as brushed and mirrored to meet different architectural styles and functional requirements.

Swing door: The most traditional and common type, divided into single-opening and double-opening. Simple structure, good sealing, easy maintenance. Suitable for doorways of various sizes.

Sliding door: The sandwich panel door leaf slides horizontally along the track to open, saving space in front of the door. Especially suitable for large door openings (such as warehouse doors, hangar doors) or places with limited space in front of the door. There are two forms: upper load-bearing and lower load-bearing.

Lifting door: The sandwich panel door leaf opens vertically upward and is flat under the ceiling, saving indoor and outdoor space to the greatest extent. Commonly used in garages, warehouses, and logistics channels. Industrial lifting doors also often use sandwich panel door panels.

Folding door: The door leaf is made of multiple panels hinged together and folds to one side when opened. Suitable for extra-wide door openings.

Cold storage and cold chain logistics: refrigerated room, freezer, hallway, platform door (extremely high requirements for insulation and sealing).

Food and beverage processing plant: production workshop, packaging room, warehouse (requires hygiene, easy cleaning, insulation, and insect prevention).

Pharmaceutical and bioengineering: clean workshop, warehouse (requires cleanliness and sealing).

Chemical industry: workshop, warehouse (may require corrosion resistance and fire prevention).

General industrial plant: workshop door, office partition, fire partition door (requires strength, insulation, sound insulation, and fire prevention).

Logistics storage center: warehouse door, sorting area door (requires large size, durability, and insulation).

Commercial building: large supermarket back warehouse, equipment room door.

Whether you are looking for a Sandwich Panel Door for residential, commercial, industrial, agricultural, industrial refrigeration, food industry, cleanroom or other applications, we can provide you with the perfect Sandwich Panel Door for every building, every custom design and every budget!

1.Can customers order different colors and models in one order?

A:Surely yes. Mixed colors and models are acceptable.

2.What's your trade terms and payment term?

A:Our trade term is FOB, CIF. Payment term is 30% deposit by T/T before mass production, Pay the balance before shipment

3.What's your special service?

A:After finish production, we will send customers production photos. If no problem, then customers pay the balance: After finish loading container, we will send loading details and loading pictures for you reference.

4.What's your delivery port and delivery time?

A:Our delivery port is QingDao or TianTin port in China .Delivery time is 10-15 days after 30% deposit received.

5: Where is your main market?

A: Our main market is in the Africa, Middle East, SEA, and more than 100 countries.

6: Can we use our shipping agent?

A: Yes, you can. We had cooperated with many forwarders. If you need, we can recommend some forwarders to you and you can compare the prices and service.

7: How can I visit you?

A: Our office locates in ZHENGZHOU, after you reach the airport, we'll pick you up, and we'll appreciate if you can inform us in advance.

8: Can we use our own design?

A: Yes, we will according to your local climate and give you our suggestion. Then you can get best details and reasonable price you want. After we confirm everything, we will design for your needs.

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