Hamm’s articulated tandem roller HD 14 VV features a 54-in. drum width. The compact line also offers combination rollers. Both drums offer vibration, with option to use either, both or none as desired. A hydrostatic dual-drum drive and articulated steering and excellent maneuverability comes with automatic/manual vibration system. The drivetrain also has the new, quiet and environmentally friendly Kubota diesel engine. Hamm increased the engine power by 15%.