P EMiTECPump Unit Introduction The hydraulic pump ensures tight and stable die clamping and allows the system to maintain clamping pressui the mold even when there is a power failure or air pressure drops The PCB Fine Piercing System uses air-driv€ hydraulic pumps resulting in very high clamping pressures high energy efficiency and convenient automated operations. Forwells hydraulic pump units also feature an easy to adjust air pressure valve to effectively control systems air pressure