... productivity:20-22m3/h high output 25m3/h JS500 portable concrete mixer Put water,cement,sand and stones at the rate of ... only for reference,for pipes,half-dry concrete is OK)into the concrete mixer,operate the mixer,run 60 seconds or so(it is ... ,welding machine,crane,batching hopper(two bins and three bins)etc welcome you contact me~~~~ 3,Our equipments in Sebria JS500 concrete mixer machine