... .♦The KMX12 is a type of heavy-duty tandem vibratory roller designed for the compaction of asphalt concrete and ... pumps, motors, bearings, etc., are internationally sourced. The Roller features all-drum infinitely variable speed drive, H/L ... and amplitudes, full hydraulic articulated steering etc.KMX12 Road Roller's Main Technical Specifications:Working mass12000kgAxle load, front drum6000kgAxle ...