GRANALLADORAS ROCA manufactures Batch type Tumblast Machines in different sizes to meet the requirements of each customer.

We have two lines of this kind of machines:

– An economic line: the abrasive is collected inside the batch.

– A line for bigger prodction: the machines have a abrasive elevation system and an abrasive cleaner.

The Batch type Tumblast machines are mainly used when, besides the shot blasting, the pieces need to be tumbled for deburring.

The strenght of these machines allows to bear the hit of the pieces during tumbling, in order to eliminate the sand remaining on hollows and holes.