Tumble belt blast machine are suitable for the derusting, deburring, roughening, or cleaning of robust work pieces of any size that are suitable for tumbling. Depending on the type of system, the work pieces are processed in either batches or in continuous operation. Depending on the system type, the machines are used for blasting transmission parts, forged parts, and light metal components. In the blasting area, the work pieces are constantly in motion. Through the perforated tumble belt, which is made of rubber as standard (but optionally also of steel), the parts are circulated and simultaneously blasted with the aid of turbines.