Continuous roller shot blasting machines for sheet & plate

Roller shot blasting machines for sheet-plate are used for descaling, de-rusting, paint removal, paint preparation, deburring, and general surface preparation prior to welding, cutting, machining, and burning operations from long and/or flat metal sheet and components.

The Automatic continuous roller shot blasting machines for sheet plate uses motorized roller conveyors are provided with feed speed adjustment (inverter), with the appropriate crossover conveyors of a horizontal roller conveyor or a compatible with a vertical roller track conveyor. The series of shot turbines appropriately installed around the plate provides for the projection by shot metal abrasive onto the plate surfaces to be cleaned just with a single cycle.

A rotate-sweep-brushing system and air-blowing with a blow-off fan installed at the exit side of the roller conveyor enclosure handle removal of any shot-abrasive left on the top side of sheet materials following treatment.

Standard equipment includes PLC, HMI display, automatic mode of start-up of throwing shot-wheel, working hours time counter, roller conveyor variable frequency drive (VFD), etc.

Features of Shot Blasting Machine:

Automatic PLC control, save labor cost
Perfect of finishing consistency of plate surface cleaning
Continuously feed for beams, plates and profiles
Integrated with exit painting lines;
No pollution for the environmental protection

Applications of Shot Blasting Machine:

Plate: Finishing the sheet surface for painting, coating or cutting, welding, etc.

Characteristics of Roller Conveying Shot Blasting Machine for steel sheet:

1. High efficient of Shot wheel Turbines

Compact shell structure, longer lifespan of blades, lower maintenance;
Upgraded wearing-resistance with low working noise & vibration;
High-speed blasting capacity with more recycle abrasive using;
Optimal blasting angle, velocity and energy-saving;
Upper and lower sides of coverage, no dead-angle left;
VFD (Variable Frequent Drive) for motor to adjust of the shot projectile capacity;
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2. Shot Blasting Room:

Shot blasting room design with CAD (Computer Aided Design) reach of best blasting angle and distance;
Blasting room made of strong profiles and 10mm plates;
The direct-blasting hot area use of upgraded wearing-resistance manganese casting steel with 35-45 HRC;
The input and output use rubber bands for sealing;
Labyrinth structure to keep the abrasive leak;

3. Continuous roller conveying system:

The roller conveyors with mangeness liners for longer lifespan;
Bearing support with the labyrinth shape prevents leaking of the steel media;
The standard capacity is 1,000kgs per meter;
Passage speeds varying from 0.5m/min to 5.0m/min
VFD (Variable Frequent Drive) for motor to adjust of the input & output feed speed;

4. Additional devices for removal of abrasive accumulated on the surface:

Scrapper system;
- Scrappers’ height adjust with the PLC and HMI interlock control;
Brush sweeping system;
- Continuous brush sweeping made of high performance of Nylon;
- The height position can be adjustable according to the marbles;
Fan blowing system;
- High-pressure fan of the blowing-off station;
- The blowing nozzle’s direction can be adjustable;

Technical of steel-plate shot blasting machine

Model	RP-1500	RP-2000	RP-3000
Workable Diameter*Height	500-1500mm	1000x2000mm	1000x3000mm
Max.Thickness	4-20mm	4-60mm	4-60mm
Blasting capacity	4*180kg/min	6*180kg/min	8*180kg/min

5. Abrasive Recycle & Purify system:

Abrasive collect and transport to elevator via screw conveyor;
The elevator lifts the abrasive to the separator;
- Bucket made of foundry casting;
- Tension device prevents belt slide;
Separator adopts DISA & Pangborn technology;
- 3-class of separating abrasive;
- Efficient reach of 99.5%
Abrasive hopper for abrasive accumulate;
Electro-Magnetic valve control of abrasive flow;