Surface Roughening Blasting Machine

1. When Surface Roughening is Required

Surface roughening is a physical surface treatment process, primarily achieved by shot blasting and sandblasting to create controlled surface roughness. It aims to improve coating adhesion, bonding performance, surface fatigue resistance and friction characteristics.

Pre-treatment for Painting & SprayingRemove rust, scale and welding slag to obtain uniform surface roughness (Ra 2.5–50μm), ensuring strong adhesion of paint, powder coatings and anti-corrosion layers, meeting Sa2.5 surface preparation standard.

2. Industries We Serve for Surface roughening

• Steel Structure & Heavy Industry

• Automotive Manufacturing

• Shipbuilding & Offshore Engineering

• Foundry & Forging

• Aerospace

• Rail Transit

• Medical Devices

• New Energy

• Hardware & Standard Fasteners

3. Common Workpieces & Matching Shot Blasting Machines

1. Large Plates & Profiles

• Workpiece Features: Large size, long linear parts, suitable for continuous mass processing

• Matching Equipment: Roller Conveyor Shot Blasting Machine

• Ideal for automatic inline production. Multiple blast wheels deliver all-round blasting for steel plates, sectional steel and steel pipes.

2. Medium & Large Complex Structural Parts

• Workpiece Features: Irregular shapes, welded assemblies, requiring full coverage treatment

• Matching Equipment: Hanger Type Shot Blasting Machine

• Workpieces are suspended and rotated during blasting to reach dead corners.

• Suitable for frames, tanks and engineering machinery components.

3. Small & Medium Precision Parts

• Workpiece Features: Small size, large batch volume, requiring descaling and strengthening

• Matching Equipment: Rubber Belt Shot Blasting Machine

• Workpieces roll gently inside the belt for uniform blasting without damage. Widely used for gears, springs and standard parts.

4. Thin-walled & Fragile Small Parts

• Workpiece Features: Light weight, thin wall, easy to deform or scratch

• Matching Equipment: Mesh Belt Shot Blasting Machine

• Provides soft blasting effect, perfect for aluminum and zinc alloy die-castings

5. Disc & Rotary Parts

• Workpiece Features: Rotationally symmetrical parts, demanding uniform surface roughness

• Matching Equipment: Rotary Table Shot Blasting Machine

• Workpieces fixed on rotating table receive multi-angle blasting.

• Suitable for wheel hubs, brake discs and flanges.