The Dust collector, Screw Conveyor, Cross Screw Conveyor, Bucket Elevator, Rotary Screen & Blast Wheels motors (ONE AFTER OTHER TO PREVENT OVER LOADING) are switched ON in sequence. After selecting the Blasting Switch the shots will be fed automatically by Dribble Valves for all the wheels operated by Solenoid Valve and Pneumatic Cylinders opening mechanism. These shots are propelled on the moving components at high velocity thereby blasting them.