rate pressure is 500bar,pressure can be regulate from 0~500bar,water flow is 23liters per minute,it drives by 30kw diesel engine,diesel engine brand have cummins brand and china weichai brand for your choice.we also have 22kw electric motor drive.The pump used Italy COMET pump.for this model machine,if just use water,can used for surface dirty cleaning,concrete punching cleaning.or can also use water and sand together(configure with sandblaster nozzle),used for paint rust and oxide coat cleaning,ship hull surface cleaning.and we are manufacturer of high pressure cleaner from 100~1500bar for different industrial cleaning,such as surface cleaning,condenser tube pipe cleaning,paint rust remove cleaning,etc.we can customized high pressure cleaner as your request.