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Steel Door is a durable, high-performance door system designed for industrial, commercial and specialized environments where strength, safety and stability are critical factors. Different from ordinary wooden or plastic doors, this door system is built to withstand frequent use, impact and harsh environmental conditions. It not only serves as a barrier to separate spaces but also provides multiple functions such as fire resistance, thermal insulation, sound insulation and dustproof airtightness. In cleanroom and laboratory settings, the Steel Door is an essential component to maintain the controlled environment’s integrity, preventing external pollutants from entering and ensuring internal temperature and humidity stability.

The door leaf of the Steel Door is made of cold-rolled steel sheet, which has high mechanical strength and excellent impact resistance. The core of the door is filled with high-performance materials, including rock wool, honeycomb paper and polyurethane foam, each of which provides different functions. Rock wool core is used for fire-rated doors, honeycomb paper core for lightweight applications and polyurethane foam core for enhanced thermal and sound insulation. The surface of the door is treated with powder coating or baked enamel, which makes it scratch-resistant and durable.
The structural design of the Steel Door focuses on strength and sealing performance. The door frame is made of thickened steel profiles, which are firmly fixed to the wall to prevent deformation under impact. The door leaf is designed with a reinforced rib structure inside, which enhances the load-bearing capacity and prevents bending and deformation during long-term use. The door is equipped with high-quality sealing strips around the edges, which can achieve dustproof and airtight performance, ensuring that no dust or air leakage occurs between the door and the frame.
Specification Items | Detailed Parameters |
Door Leaf Material | Cold-rolled steel sheet |
Core Filling Materials | Rock wool, honeycomb paper, polyurethane foam |
Surface Coating | Powder coating, baked enamel |
Fire Performance | Optional fire-rated versions |
Surface Feature | Scratch-resistant and durable |
We offer comprehensive customization services for Steel Door to meet the unique needs of different projects. First, fire performance customization is available, and we can provide doors with fire ratings from 30 minutes to 180 minutes according to the customer’s requirements, which are certified by relevant international standards. Second, size customization is supported, and we can produce doors of any size from 800×2000 mm to 1500×2500 mm to fit different door openings. Third, surface customization is offered, and we can provide various colors of powder coating or baked enamel to match the project’s decoration style. In addition, we can also customize the door with special functions such as observation windows, kick plates and anti-theft locks according to customer needs.
The Steel Door has excellent impact resistance and deformation resistance, which can withstand frequent use and external impact in industrial environments. It is not easy to be damaged, and can maintain its original shape and function for a long time.
When equipped with fire-rated core materials and certified hardware, the Steel Door provides excellent fire resistance, which can effectively prevent the spread of fire and smoke in case of fire. It also has good thermal insulation and sound insulation performance, which can reduce energy consumption and noise pollution, improving indoor comfort. With proper sealing, it can achieve dustproof and airtight performance, which is suitable for cleanrooms and laboratories.
The cold-rolled steel sheet and high-quality coating make the Steel Door have excellent corrosion resistance. It can be used for more than 20 years in normal indoor environments without rust or peeling.
The Steel Door is suitable for a wide range of applications, including industrial workshops, pharmaceutical cleanrooms, hospital operating rooms, laboratory facilities, food processing plants and commercial warehouses. It is especially ideal for projects that require high safety, fire resistance and dustproof performance.
Are you in need of a reliable, high-performance Steel Door for your industrial or cleanroom project? Inquire about our products now to get detailed product information and a competitive quote. We can also provide free on-site measurement and installation guidance services. Add our Steel Door to your basket today and ensure the safety and stability of your project!