Sand-blasting machine for tubes
Munk - Schmitz
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.
