ZSPA-554TQJ Hydraulic Air Pump Hydraulic Air Pump 2-speed pump drives single -or double-acting cylinders, delivering a high volume of oil . Air is the preferred source of power which supply require 3~8bar. Max.Pressure: 700bar. External adjustable pressure regulator Powerful 4 hp motor starts under load. Retract side internal relief valve protects tool. Just use with [...]