Hamm Compaction, a division of Wirtgen America, used 2006 to roll out two compact articulated asphalt rollers that offer vibration in both the front and rear drums. The 1.6-ton HD 8 VV and the 1.73-ton HD 10C VV can be operated with vibration in the front drum only, in both drums, or in static mode. The HD 8 VV has a 31.5-inch drum width; the HD 10C VV, 39 inches. Hamm says the double-drum compaction capability gives the two new models high production capabilities in a small package for commercial or roadbuilding applications.

Both models share an 83.5-inch-long platform and have a total height of 84.8 inches. They also share a unique cantilevered drum suspension system which uses a single support leg on each drum — right leg only in the front, left leg only in the rear. This design permits compaction right up against obstructions such as walls or curbs, according to Hamm.