By Katie Weiler, Managing Editor | September 28, 2010

Model HDO90V is a hybrid roller of Hamm's HD 90 platform. The front has a conventional vibratory drum, and the rear incorporates the new Oscillatory Compaction System, which ensures that the roller drums maintain constant contact with the ground for faster, more effective compaction. The result, says Hamm, is better compaction in fewer passes, with less vibration-related wear and tear on operators and surroundings.