### Industrial Door Classification

Industrial doors, as an indispensable part of modern industrial buildings, are widely used in various factories, warehouses, logistics centers, and other places. They not only have basic opening and closing functions but also bear multiple roles such as heat preservation, sound insulation, theft prevention, and aesthetics. With continuous technological advancements and diversified application needs, the types of industrial doors have become increasingly rich. This article will detail several common classifications of industrial doors to help readers better understand and choose the right door type for their needs.

#### 1. Classification by Opening Method

Industrial doors are mainly divided into the following categories according to their opening methods:

1. **Rolling Doors**

   Rolling doors are one of the most common industrial doors. They use a motor to drive the rotating shaft, allowing the door curtain to wrap around the shaft to achieve opening and closing. Rolling doors have a simple structure and are easy to operate, suitable for various scenarios. Depending on the material, rolling doors can be further divided into aluminum alloy rolling doors, steel rolling doors, and high-speed rolling doors. High-speed rolling doors, with their high-speed opening and closing characteristics, are widely used in clean workshops in the food, pharmaceutical, and electronics industries that require frequent entry and exit.

2. **Sliding Doors**

   Sliding doors achieve opening and closing through the left and right movement of the door body, usually equipped with tracks and a drive system. Sliding doors have a large opening space, stable operation, and good sealing, often used in large workshops, logistics warehouses, and other places requiring large vehicles to enter and exit. Depending on the material and structure, sliding doors can be divided into steel sliding doors, aluminum alloy sliding doors, and insulated sliding doors.

3. **Folding Doors**

   Folding doors achieve opening and closing through the folding and unfolding of the door leaves, occupying less space, and opening quickly, suitable for places with limited space. Folding doors are often used in garages, exhibition halls, and small warehouses. In terms of materials, folding doors can be divided into steel folding doors and aluminum alloy folding doors.

4. **Lifting Doors**

   Lifting doors achieve opening and closing through the vertical lifting of the door body, mostly used in large warehouses, aircraft hangars, etc. Lifting doors have a sturdy structure, good heat preservation and sound insulation effects, and can choose manual or electric operation as needed. Common lifting doors include steel lifting doors and insulated lifting doors.

#### 2. Classification by Material

Industrial doors are mainly divided into the following categories according to their materials:

1. **Steel Doors**

   Steel doors are widely used in the industrial field due to their high strength, impact resistance, and affordability. The surface of steel doors can be sprayed with different colors of paint, which is both beautiful and rust-proof. Steel rolling doors, steel sliding doors, and steel folding doors are all common steel industrial doors.

2. **Aluminum Alloy Doors**

   Aluminum alloy doors have the advantages of light weight, corrosion resistance, and beautiful appearance, suitable for various industrial environments. Aluminum alloy rolling doors and aluminum alloy sliding doors, due to their good weather resistance and corrosion resistance, are particularly suitable for coastal and humid environments.

3. **Insulated Doors**

   Insulated doors use special insulation materials to fill the door body, with good heat preservation and insulation performance, suitable for places with high temperature control requirements, such as cold chain logistics centers and cold storage. Insulated doors usually use steel or aluminum alloy shells, with polyurethane, rock wool, or other insulation materials inside.

4. **Transparent Doors**

   Transparent doors mostly use glass or transparent plastic materials, with good lighting effects, suitable for places that require natural lighting. Transparent rolling doors and transparent sliding doors, while ensuring safety, can also improve indoor lighting and create a bright working environment.

#### 3. Classification by Special Functions

In addition to the above classifications by opening method and material, industrial doors can also be classified according to special functions:

1. **Fire Doors**

   Fire doors are mainly used to prevent the spread of fire and protect personnel and property safety. Fire doors are usually made of high-temperature resistant materials and can maintain the integrity of the door body for a certain period of time to isolate the fire source.

2. **Explosion-proof Doors**

   Explosion-proof doors are mainly used for safety protection in explosive environments, effectively withstanding the shock waves and pressure generated by explosions to protect surrounding buildings and personnel safety.

3. **High-speed Doors**

   High-speed doors, with their extremely fast opening and closing speeds, are widely used in logistics and production lines that require quick entry and exit. High-speed doors usually use lightweight materials, equipped with high-performance motors and control systems, to achieve efficient and energy-saving operation.

4. **Intelligent Doors**

   Intelligent doors combine modern sensor technology, automatic control systems, and network communication technology to achieve remote control, automatic switching, and safety alarms, improving the safety and convenience of industrial doors.

In summary, there are various classifications of industrial doors. Choosing the right door...