... ,asphalt and rockfills. Super HS double drum vibratory road roller QLS60DR:1.Fully hydraulic drive system consists of hydraulic pump and ... /4.0kwweight560kgs560kgs560kgs560kgsworking width600mmdrum dia430mmfrequency3300vpmcentrifugal force21kntravel speed0-3km/hgradeability35%water tank21L QLS60DR asphaltrollers for sale