Faqs For Blasting Machine

1. What is the working principle of a shot blasting machine?

Shot blasting is a mechanical surface treatment process, similar to sandblasting and shot peening. The principle involves using a motor to drive a rotor, which by centrifugal force, throws shot (with diameters ranging from 0.2 to 3.0 mm, including cast steel shots, cut wire shots, stainless steel shots, etc.) onto the surface of the workpiece. This process creates a certain roughness on the surface of the workpiece, improves its appearance, or changes the welding tensile stress into compressive stress, thereby enhancing the workpiece's service life.

2. How do I choose the right shot blasting machine for my workpieces?

Workpiece size and shape: Consider options like hook type, roller conveyor type, and crawler type.

Treatment requirements: For example, whether you need to remove rust, oxide layers, or perform strengthening.

Processing capacity: Determine the machine’s capacity based on daily production volume.

Production environment: Consider factors like workshop space size and whether a pit is required.

3. What maintenance does a shot blasting machine require?

Regular inspection and replacement of the rotor: The rotor wears over time and should be checked and replaced periodically.

Dust removal system maintenance: Ensure the dust collection system is functioning properly to prevent dust accumulation.

Shot material inspection: Regularly check the quality and size of the shot to ensure optimal blasting results.

Lubrication system: Maintain lubrication on moving parts to avoid wear.

4. What types of workpieces can be treated by a shot blasting machine?

Shot blasting machines are used in many industries, including shipbuilding, automotive parts, aerospace components, weaponry, tanks, bridges, steel structures, glass, steel plates, pipelines, etc.

5. What is the shot material used in a shot blasting machine?

Common shot materials include steel shots, cast iron shots, aluminum shots, and manganese steel shots. The choice of shot material depends on the workpiece material and treatment requirements. The size and hardness of the shot significantly affect the blasting effect and efficiency.

6. What is the processing capacity of a shot blasting machine?

The processing capacity of a shot blasting machine depends on the type and specifications of the machine. For example, hook-type shot blasting machines are suitable for larger workpieces, while double-hook type machines are better for mass production. The processing capacity is usually measured by the amount of workpieces (in tons) processed per hour.

7. How can I ensure safe operation of the shot blasting machine?

Regularly inspect and maintain safety devices to ensure they are in good condition.

Before operating, ensure operators are familiar with the user manual and have received proper training.

Wear appropriate safety gear such as ear protection, goggles, and protective clothing.

Keep the operating area clean and free of obstacles to avoid interference or accidents.

8. How is the electrical control system of the shot blasting machine configured?

Modern shot blasting machines are typically equipped with automated electrical control systems, which include:

PLC automatic control: Provides fully or semi-automatic modes to reduce human errors.

Remote monitoring system: Allows real-time monitoring of the machine's operational status via the internet or local area network.

Alarm system: Alerts operators when anomalies occur, prompting timely actions.

9. Can the shot material be recycled?

Yes, shot blasting machines typically come with a recycling system that allows the used shot to be collected, cleaned, and reused. This reduces the consumption of shot material and helps lower production costs.

10. How efficient is the shot blasting machine?

Modern shot blasting machines are designed with high efficiency and energy-saving features, optimizing the use of energy. By properly configuring the conveying system, recycling system, dust collection system, and electrical control system, energy consumption can be reduced, and work efficiency can be improved.

11. Is the shot blasting machine suitable for large-scale production?

Yes, shot blasting machines are ideal for large-scale production, especially in production lines that process large quantities of similar workpieces. For large-scale production, double-hook type shot blasting machines or other high-throughput equipment can significantly improve productivity.

12. How can I determine when parts of the shot blasting machine need to be replaced?

Reduced blasting effect: If the surface finish on workpieces is unsatisfactory, the rotor or shot material may be worn.

Abnormal noise or vibration: This could indicate internal component damage.

Decreased production efficiency: If efficiency drops significantly, the recycling system or electrical control system might be malfunctioning.

13. How can I determine when to add new shot material to the machine?

You can monitor the electrical control system; if the current of the shot blasting machine is lower than the normal working current, this indicates that it is time to add new shot material.

14. What is the lifespan of a shot blasting machine?

The lifespan of a shot blasting machine is typically related to its operating environment, maintenance, and workload. With regular maintenance and timely replacement of worn parts, a shot blasting machine can have a service life of over 10 years.