... Working productivity:20-22m3/h high output 25m3/h JS500 portable concrete mixer Put water,cement,sand and ... run 60 seconds or so(it is suitable for JS500),then stop,The concrete is then ready for ... shaftCast steel,wear resistant2,Supply equipmentsWe also produce JS750,JS1000,JS1500,JS2400 ETC, We're a profession concrete pipe ... contact me~~~~ 3,Our equipments in Sebria JS500 concrete mixer machine