tube shot blasting machine

In contrast to other hollow bodies, tubes can be blasted horizontally because the abrasive or compressed air can escape from the other end. The tube blasting process comprises the actual blasting process and the subsequent air purging with compressed air. To prevent isolated abrasive grains from penetrating again, pure air supplied via a bypass is used instead of blasting air for air purging.

Tubes with small diameters are blasted using the blast-through method, tubes with large diameters using the lance method:

Blast-through method

In the blast-through method, tubes are blasted solely by the reflection of the abrasive from the inner wall of the tube. In the simplest case, the blasting nozzle and suction hose are connected to the two opposite ends of the pipe for this. If processing multiple pipes next to one another in parallel, the abrasive is collected in a collecting cabinet and transported from there back to the blasting system.