Hanger type shot blasting machine mainly consists of blasting chamber, blast wheel, workpieces transport system, screw conveyor, bucket elevator, separator, dust collector, electric control system and others. Hanger type shot blasting machines are designed to blast castings, welded pieces, forgings, etc. They are especially suitable for blasting sensitive pieces that may not strike one another during a shot blasting procedure.
Work pieces are placed in work piece fixtures or are suspended directly from the running gear’s rotating hook. The work pieces are then pushed into position in front of the blasting machine. An automatic feed mechanism then advances the work pieces to the first blasting position. After the blasting program begins, the machine door is automatically closed and electro-pneumatically locked. As the work pieces rotate, they are blasted at three different blasting stations according to the pre-set blasting times. The blasting abrasive is continuously cleaned, recirculated and reused. An abrasive metering device feeds the cleaned abrasive from the abrasive storage hopper to the high-performance blast wheel turbines.
Upon completion of the blasting cycle and after the turbines have come to a complete stop, the machine door opens automatically and the suspended work pieces return to their initial position. A fan unit creates the partial vacuum necessary to maintain dust-free operation of the blasting unit. Extracted air is cleaned in a special filter unit.
