Specs Model SB20 Rang of work 4--6kg.f/cm? movable/fixed movable Tank Dia 380mm G.W 26kg N.W 23kg BOX SIZE 90*48*43 Work Area 4800cm? Material：　silicon sand,carborundum ,frosting,plastic silicon and so on　　　　　 Teams up with an air compressor to spray granular abrassives at high pressure.Equipped with a nozzles,2.5m hose,filling funnel,water trap.6"rubber wheels,and canvas hood.Has safety pressure release value.3/8" brass valves for air throttling and sand metering.