Double Drum Road Roller KMX12 1Working mass:12T 2Cummins B3.9-C engine ... construction, airfield, packing lots, industrial site development, etc.♦The KMX12 Road Roller's key components and control systems, such as hydraulic ... vibratory frequencies and amplitudes, full hydraulic articulated steering etc.KMX12 Road Roller's Main Technical Specifications:Working mass12000kgAxle load, front drum6000kgAxle ...