... -22m3/h high output 25m3/h JS500 portable concrete mixer Put water,cement,sand and stones at the rate ... ,half-dry concrete is OK)into the concrete mixer,operate the mixer,run 60 seconds or so(it is suitable ... manufacture,we also produce concrete pipe making machine,concrete feeder,welding machine,crane,batching hopper(two bins and three ... me~~~~ 3,Our equipments in Sebria JS500 concrete mixer machine