Cleaning Before Coating

1. When Cleaning before coating is Required

• Remove surface rust, mill scale, oxide layer and welding slag

• Clear dirt, grease residue, dust and molding sand

• Eliminate old coating layers and surface burrs

• Uniformly roughen workpiece surface to enhance coating bonding force

• Meet international surface preparation standards such as Sa2.0, Sa2.5 and Sa3.0

2. Industries We Serve for Cleaning before coating

• Steel Structure Industry: Section steel, steel plates, steel frames and steel towers

• Automotive Manufacturing: Auto body parts, chassis components and exterior accessories

• Shipbuilding & Offshore Engineering: Hulls, deck structures and offshore platform parts

• General Machinery: Mechanical housings, bases and transmission parts

• Container & Logistics Equipment: Standard containers and storage racks

• Construction Machinery: Excavator parts, loaders and engineering assemblies

• Pipe & Pipeline Industry: Steel pipes, pipe fittings and pressure vessels

• Furniture & Hardware: Metal furniture, decorative hardware and metal profiles

3. Common Workpieces & Matching Shot Blasting Machines

1) Steel Plates, H-Beams & Steel Profiles

Workpiece features: Large size, regular shape, suitable for continuous mass production

Matching equipment: Roller Conveyor Shot Blasting Machines

Automatic continuous feeding realizes full-sided cleaning. High efficiency for large batches of sectional steel and steel plates.

2) Welded Assemblies & Large Structural Parts

Workpiece features: Irregular shape, multiple dead corners, heavy weight

Matching equipment: Hanger Type Shot Blasting Machine

Workpieces are suspended and rotated during operation to clean inner cavities and hidden corners thoroughly.

3) Small & Medium Mechanical Parts & Castings

Workpiece features: Small volume, large production quantity, scattered burrs and sand residues

Matching equipment: Belt Type Shot Blasting Machine 

Gentle rolling prevents part damage, suitable for batch cleaning of castings and small machined components.

4)Thin-walled Metal Parts & Stamping Components

Workpiece features: Thin wall, lightweight, easy to deform under strong impact

Matching equipment: Barrel Blast Shot Blasting Machine

Low-speed rolling with soft blasting effect removes dirt and rust without causing deformation.

5) Pipe Fittings, Flanges & Disc-shaped Parts

Workpiece features: Rotary symmetrical structure, demanding uniform cleaning on all surfaces

Matching equipment: Rotary Table Shot Blasting Machine

Stable rotating platform ensures even blasting, ideal for pipes, flanges and various disc workpieces.