... , total power is 34.69KW, but the traditional sand blasting room total equipments power more than 200KW.2. High efficiency, ... 40% of the traditional methods. Tower inner wall automatic shot blasting machine advantages: 1. Automatic closed circuit recycle system, less ... 3 hours, it can save 80% energy compared with traditional blasting room. 5. Environmental protection, rust environment fresh and clean, ...