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

Jinwo's Steel Structure Shot Blasting Machine Q69 is a fully automatic, continuous surface treatment line for structural steel. It removes rust, mill scale and welding slag from H-beams, I-beams, channels, steel plates and box girders, and strengthens the surface at the same time.

Workpieces travel through the blasting chamber on a speed-adjustable roller conveyor while several blast wheels throw steel shot at them from different angles. The shot is recovered and reused, and the dust is filtered. The Q69 type is customisable, with cleaning widths from 800 to 4,000 mm.

Key Features

• Roller conveyor with adjustable speed for continuous feeding of different workpiece sizes
• Several cantilever centrifugal blast wheels working from different angles
• Chamber lined with wear-resistant protective plates
• Automatic shot recovery, separation and reuse through screw conveyors, bucket elevators and separators
• Pulse cartridge dust collector
• PLC and touch screen control with automatic and manual modes
• Achieves a derusting grade of Sa2.5–Sa3 without pickling liquids

Technical Specifications

• Type: Q69 (customisable)
• Effective cleaning width: 800–4,000 mm
• Chamber feed-in size: 1,000 × 400 mm to 4,200 × 400 mm
• Workpiece length: 1,200–12,000 mm
• Section steel specification: 800 × 300 mm to 4,000 × 300 mm
• Steel sheet thickness: 3–100 mm to 4.4–100 mm
• Roller conveyor speed: 0.5–4 m/min
• Shot blasting quantity: 4 × 180 kg/min to 8 × 360 kg/min
• Initial shot charge: 4,000–11,000 kg
• Roll brush adjusting height: 200–900 mm
• Air capacity: 22,000–38,000 m³/h
• Total power (excluding dust cleaning): 90–293.6 kW
• Exterior size: 25,014 × 4,500 × 9,015 mm
• Derusting grade: Sa2.5–Sa3
• Control: PLC with touch screen

Applications

• Pretreatment of steel structure parts for workshops and buildings
• Bridge and wind turbine tower fabrication
• Engineering machinery components
• Rust removal before coating of steel plate, sections and profiles
• Refurbishment, paint stripping and recoating of used steel structures

Commercial Details

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

Frequently Asked Questions

• What grade of cleaning does it achieve? It reaches a derusting grade of Sa2.5–Sa3, suited to high-standard coating requirements.
• What sizes of workpiece can it handle? Cleaning width is 800–4,000 mm and workpiece length is 1,200–12,000 mm, with steel sheet thickness from 3 mm up to 100 mm.
• How is the shot and dust managed? Shot is recovered, separated and reused automatically, and a pulse cartridge dust collector filters the dust.
• What should I send for a quotation? Send the types and sizes of workpiece (width, length, thickness), the required cleaning grade, the target throughput, and any special requirements such as power supply or layout.