Steel Plate Shot Blasting Machine Q69 | Jinwo, Qingdao, China

Jinwo's Steel Plate Shot Blasting Machine Q69 cleans and roughens steel plate, H-beams, section steel, steel grids and welded structures before coating. Workpieces pass through a sealed blasting chamber on a roller conveyor, where centrifugal wheels throw abrasive at every surface.

It removes rust, mill scale, oil, welding slag and burrs and leaves a uniform rough finish with a surface roughness of Ra 1.6–6.3 μm, adjustable through conveyor speed and abrasive size. Some models can also strengthen the plate surface. Non-standard customisation is available.

Key Features

• Q034II direct-drive centrifugal blasting wheels with a large blasting capacity and fast shot speed
• Blasting layout simulated in 3D to give even abrasive impact across the workpiece
• Cleaning chamber lined with chrome cast iron in replaceable blocks, fixed with special nuts and stoppers
• Fully sealed structure with a cartridge dust collector
• Continuous roller-conveyor operation with adjustable processing speed
• Dust emission concentration of 30 mg/m³ or less, meeting GB 16297-1996

Technical Specifications

• Type: Q69 (customisable)
• Effective cleaning width: 800–4,000 mm
• Feed-in opening size: 1,000 × 400 mm to 4,200 × 400 mm
• Workpiece length: 1,200–12,000 mm
• Section steel size: 800 × 300 mm to 4,000 × 300 mm
• Roller conveyor speed: 0.5–4 m/min
• Blasting capacity: 4 × 180 to 8 × 360 kg/min
• Initial abrasive charge: 4,000–11,000 kg
• Roll brush adjusting height: 200–900 mm
• Air volume: 22,000–38,000 m³/h
• Surface roughness achieved: Ra 1.6–6.3 μm
• Total power (excluding dust removal): 90–293.6 kW
• Exterior size: 25,014 × 4,500 × 9,015 mm

Applications

• Steel structure fabrication: removing rust and scale from beams, columns, box girders and roof trusses before painting
• Plate processing: cleaning hot-rolled, cold-rolled, stainless steel and aluminium plate
• Shipbuilding: rust removal on deck, hull and cabin plates
• Wind tower and bridge manufacture: cleaning thick plate and box girders
• Engineering machinery and automotive: preparing frames, panels and body parts for coating

Commercial Details

• Brand: Jinwo
• Manufacturer: Qingdao Jinwo Machinery Manufacturing Co., Ltd.
• Place of origin: Qingdao, Shandong, China

Frequently Asked Questions

• What size of workpiece can it handle? Effective cleaning width is 800–4,000 mm and workpiece length is 1,200–12,000 mm, depending on the model.
• What surface finish does it produce? It leaves a uniform rough surface of Ra 1.6–6.3 μm, adjustable through conveyor speed and abrasive size.
• How is dust controlled? The chamber is fully sealed and fitted with a cartridge dust collector, keeping emissions at 30 mg/m³ or less.
• What should I send for a quotation? Send the workpiece types and maximum width, height and length, the material, the current surface condition, the required finish and the hourly output you need. Mention any non-standard requirements.