Blasting with the suction principle: Suction blasting, also known as injector blasting, uses compressed air to create a vacuum in the blast gun, which sucks abrasive from the container and forms a jet of abrasive air in the blast nozzle. This blasting method requires only a small setup and uses comparatively less air (see the article on Compressed Air Supply and Compressed Air Requirements). 

Areas of application for suction blasting include light cleaning work, matting glass, cleaning thin materials and removing paint residue or minor dirt.

Blasting using the pressure blasting method: Pressure blasting is the first choice for high performance and is particularly suitable for large surfaces and structures and workpieces that are difficult to process. The principle of gravity applies to this blasting method, in which the same pressure prevails in the pressure blasting pot and in the blasting hose / metering valve and the blast material can therefore fall into the air flow by means of gravity. This blasting technology requires more air than the suction principle. However, this also makes pressure blasting more efficient than other methods.

Blasting according to the vacuum principle: This blasting method is basically not a further principle, but rather describes the possibility of dust-free blasting and is possible with both the suction principle and the pressure blasting method. The vacuum principle is a closed circuit in which the abrasive and the dust produced on the surface are immediately sucked back in. Clemco has a specific product group with various devices for different requirements in its program. Further information about dust free blasting can be found here.