... high output 25m3/h JS500 portable concrete mixer JS500 concrete mixer is of double horizontal axis forced type which is developed by ... ,and it can be used in commercial concrete mixing plant,engineering mixing plant,etc.It ... concrete is OK)into the concrete mixer,operate the mixer,run 60 seconds or so(it is suitable for JS500),then stop,The concrete ... ~~~~ high output 25m3/h JS500 portable concrete mixer