Sand-blasting machine for tubes Munk Schmitz
Unlike other hollow bodies tubes and pipes can be processed horizontally because abrasive and compressed air may escape at the rear end.
That is why our Problast PowerPacks with closed-circuit system are the ideal equipment to blastclean, descale and activate the insides of tubes and pipes.
There are two different blasting methods:
1. Blow-through method
In the easiest case, such as the blasting of coils, a blast nozzle is connected to the forward end and a recovery hose to the rear end of the tube.
When straight tubes are to be processed the rear end of the tube is led to a recovery box where the abrasive is collected and recycled.
2. Lance method
For larger tube diameters special blast nozzles are fitted to a lance which is inserted in the tube:
The rear end of the pipe is positioned in an abrasive recovery box.
A blast lance is inserted cleaning the pipe while it retracts.
Either the pipe, the lance or the blast head is rotated.
Multi-nozzle blast heads are available for high-production needs.
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