What is Automatic Sheet Metal Shot Blasting Machine?

What is Automatic Sheet Metal Shot Blasting Machine? 

An Automatic Sheet Metal Shot Blasting Machine is an industrial device designed to clean, descale, and prepare sheet metal surfaces through the process of shot blasting. It is widely used in industries such as steel manufacturing, automotive, shipbuilding, and construction to improve the surface quality of metal sheets and profiles.

Here are some key features and technical details of this type of machine:

Main Components and Features

1.Blast Chamber:

The chamber is where the shot blasting process takes place. It is designed to contain the abrasive media and the metal sheets during the blasting process.

Typical blast chamber open size: 2500mm (length) × 1200mm (height).

2.Conveyor System:

The machine uses a roller conveyor system to transport the metal sheets through the blast chamber.

Working speed: 0.5 - 4 m/min, with frequency speed control.

Maximum loading capacity: 1000 kg/m.

3.Blast Nozzles and Wheels:

The machine is equipped with multiple blast nozzles or wheels that propel the abrasive media (such as steel shot or grit) onto the metal surface.

Blast volume: 250 - 10 kg/min.

Power: 15 - 10 kW.

4.Abrasive Recycling System:

The machine includes a system for recycling and reusing the abrasive media. This typically consists of a bucket elevator, a separator, and screw conveyors.

Bucket elevator lifting capacity: 150 t/h.

Separator capacity: 150 t/h.

5.Dust Collection System:

A pulse cartridge dust collector is used to capture and filter the dust generated during the blasting process, ensuring a cleaner working environment.

Total air volume: 38000 m³/h.

6.Surface Preparation:

The machine is capable of achieving a surface cleaning grade of Sa2.5 according to GB8923-88 (ISO8501), which is suitable for modern coating applications.

Surface roughness: Ra40～75 μm.

Technical Parameters

1.Sheet Metal Dimensions:

Width: ≤2300 mm.

Length: 3000 - 12000 mm.

Thickness: 6 - 40 mm.

2.Structural Steel Dimensions:

Width: ≤2000 mm.

Height: ≤1000 mm.

Length: 3000 - 12000 mm.

3.Power Consumption:

Total power: ≈263 kW.

Compressed air consumption: 1 - 3 m³/min.

Air pressure: 0.4 - 0.6 MPa.

Applications

Automatic Sheet Metal Shot Blasting Machines are used in various industries to:

1. Remove rust, scale, and other impurities from metal surfaces.

2. Prepare surfaces for painting, coating, or welding.

3. Increase the durability and lifespan of metal products.

Advantages

1. High Efficiency: The automated process significantly reduces cleaning time compared to manual methods.

2. Uniform Surface Quality: Provides a consistent and high-quality finish suitable for further processing.

3. Environmental Protection: The enclosed system minimizes dust and debris release into the environment.

These machines can be customized based on specific production requirements, such as the size of the metal sheets or profiles to be processed.