HSR parts roller conveying pressure box type automatic sandblasting machine The roller conveyor automatic sandblasting machine pressure chamber system is mainly used for high speed rail track surface blast-cleaning. The roller conveyor type pressure tank automatic sand blasting machine using screw machinery and vertical abrasive mechanical bucket conveyor and dust separation system using high performance pills; sandblasting system uses four times the continuous high pressure type sandblasting machine, dust-removing system adopts automatic control-pulse cartridge dust collector.