Here the abrasive is fed from a pressurised vessel to the blast hose through a metering valve. The metered abrasive alongwith pressurised air is projected at high velocities through a nozzle to clean the surface to the desired finish. 

Air blast equipment is used world wide in a variety of application from offshore marine, general and civil engineering industrial blast rooms, to stone and masonary cleaning and glass etching.

The Siphon system is based on the principle of vacuum. In this system, vacuum is created by an incoming jet of air within the blast gun. The abrasive is thus picked up and projected on to the workpiece through the blast nozzle. 

This process is commonly used for Die and Mould cleaning and cleaning of delicate components.

Can be operated by both siphon or through a high pressure pump. An abrasive slurry is projected through a nozzle onto the workpiece to achive the desired finish.