Turbine or compressed air what is the difference?

The abrasive is propelled by a high-speed rotating wheel driven by an electric motor — no air compressor required. The turbine projects the abrasive in a directed stream at 60–80 m/s. It is the highest productivity, lowest operating cost system: consumes only electrical energy, with no compressed air cost, and processes large volumes in continuous or batch processes. An automatic shot blast machine can process 10 to 100 times more surface per hour than a compressed air system with similar operating cost. Ideal for series production: foundry, structures, profiles, plates, tubes, tumblast.

The abrasive is propelled by a pressurized air stream through nozzles. Requires a compressor and consumes significant volumes of air. It is more flexible than the turbine: allows directing the blast stream exactly where needed, processing parts of any size, working on site without fixed installation and easily alternating abrasives. It is the technology for large parts, complex geometries, spot jobs, field maintenance and blast rooms where the operator manually controls the blast stream.

The choice depends mainly on production volume, part size and geometry, mobility requirements and investment and operating budget. For series production with regular-geometry parts, the turbine is always the most economical option in the long term. For unique, large parts, or field work, compressed air offers the necessary flexibility.