FIELD: mechanical engineering; cutting. SUBSTANCE: device has high-pressure cylinder with main inlet and outlet pipelines and nozzle connected with outlet pipeline. It has also additional inlet pipeline installed in zone of main inlet pipeline, hopper for abrasive material with intake pipe, circulation system connecting hopper with high pressure cylinder and switching on pump, and two valve which disconnect, when closed, the circulation system from high pressure cylinder and cut off delivery of abrasive mixture to nozzle. EFFECT: enlarged operating capabilities. 2 cl, 16 dwg
