Rubber belt tumble blast machine
The troughed belt principle is an effective blasting process for descaling, derusting and deburring robust mass-produced parts. As the workpieces are processed together in batch operation, they must be able to withstand this process undamaged. The workpieces to be blasted are circulated by the continuous rubber trough belt and exposed to the blast stream for the entire blasting time. The rubber trough belt ensures relatively gentle circulation. Very small parts can also be blasted by maintaining small gap dimensions. Alternatively, we are also happy to use barrel blast machines.
The machine can be filled and emptied in different ways: In automatic mode with feeder and discharge chute; in semi-automatic mode, filling can be carried out manually, using lifting gear, or emptying can be carried out directly into the customer's containers.
For continuous production, we offer concepts with several interlinked machines.
Troughed belt blast machines Product programme
Our standard range for troughed belt blast machines (MG) includes a filling volume of 90 litres to 550 litres.
| Technical data | MG 90 | MG 180 | MG 350 | MG 550 |
|---|---|---|---|---|
| Filling volume (litres) |
90 | 180 | 350 | 550 |
| Belt dimensions ⌀ x width in mm |
600 x 800 | 800 x 900 | 1,000 x 1,350 | 1,200 x 1,200 |
| Max. individual workpiece weight (kg) | 10 | 15 | 25 | 25 |
| Max. weight of load (kg) | 200 | 400 | 800 | 1,000 |
| Workpiece transport | optional | optional | optional | optional |
| Abrasive conveyor system | vibratory conveyor or screw | vibratory conveyor or screw | vibratory conveyor or screw | vibratory conveyor or screw |
| turbine (number x kW) | 1 x 7.5 |
1 x 7.5 1 x 11 |
2 x 11 2 x 18.5 |
2 x 11 2 x 18.5 |
| Feeder | optional | optional | optional | optional |
| Filter system | PF 4/4 | PF 4/6 | PF 4/12 | PF 4/12 |
The machine selection depends on the volume and weight of the batch to be blasted. The workpiece parameters to be blasted, such as geometry, material and temperature of the workpieces, must also be taken into account.
Please send us your detailed enquiry.
Our experienced team will be happy to help you.
Operating sequence for troughed belt blast machines
With the loading device, the workpieces are loaded directly into the blasting machine in containers, on pallets or in the so-called bucket feeder. The feeder is set in motion at the control cabinet at the push of a button, the workpieces slide through the open loading door into the troughed belt, which is already rotating forwards.
The feeder is then returned to its starting position. Once the door is automatically closed and secured against opening, the blasting process begins. After the blasting time has elapsed, the door opens automatically and the finished blasted batch is discharged in cycles via the discharge chute or directly into the customer's containers.
The abrasive is kept in circulation and cleaned for continuous use. The cleaned abrasive is fed from the abrasive hopper to the high-performance turbine via the abrasive dosing unit.
A fan generates the necessary negative pressure to ensure dust-free operation of the blasting system. The extracted air is cleaned with a filter system.
