Dry ice blasting – Institute of Materials Science

Dry ice blasting

The Institute of Materials Science has a CO2 pelletizer that allows pellets for dry ice blasting to be produced directly on site. Compressed liquid CO2 is used as the starting material. Pellets of different sizes can be produced from this through interchangeable dies. The industrial standard consists of pellets with a diameter of three millimeters.

To produce dry ice, the liquid CO2 is expanded to ambient pressure, causing it to solidify into so-called dry ice snow. The snow is then pressed through a die with a screw conveyor, and the resulting continuous strands are cut to length with a rotating knife.

Technical data

Tank	600 l nominal volume Euro-Cyl 600/24 M12
Pelletizer	BUSE Pelletizer BJP 30
Pelletizer output	30 kg per hour (3 mm pellets)
Blasting unit	BUSE Jet Booster 20 DP
Blast machine capacity	70 kg/h
Blaster capacity	12 kg
Blaster pressure	16 bar