Billets; relatively short, heavy steel bars with a quadratic profile are usually made in continuous casting or hot roll lines. After production their surface finish must comply with grade SA 2 minimum, i.e. the surface must be practically free of rust and scale. This blast system allows the derusting and descaling of billets with cross-sectional dimensions of max. 180 x 180 mm at cycle times of 20 seconds. Equipped with 8 Long Life high performance turbines and 2 blast media recycling & classification systems, this blast machine can run at processing speeds of up to 90 m/min.