For Crushing Wind Turbine Oil Filters & Other Industrial Oil Filters The WM-300 requires no air supply and uses a fully self-contained electric/hydraulic power unit. This system provides consistent crushing force without the need for auxiliary equipment. The user has total hands free operation. A push button control activates the system and a built-in safety mechanism prevents the machine from operating when the loading door is open. Specifications subject to change at the manufacturer’s discretion.