The HAMM HD+ 120 VV HF is a high-performance smooth drum roller designed for efficient asphalt compaction. It features two smooth, non-split vibration drums with a drum width of 78 inches and a front/rear drum diameter of 55.1 inches. The machine operates at vibration frequencies ranging from 2,700 to 4,020 VPM, corresponding to 45 to 67 vibrations per minute, providing excellent surface smoothness and density. The overall operating width is 83 inches with a total operating weight of up to 30,297 lbs depending on configuration, including versions with ROPS or cab options. The roller is powered by a 154.1 HP DEUTZ diesel engine, with a fuel tank capacity of 68.7 gallons and a water tank capacity of 302.5 gallons to support drum wetting. Its dimensions include a total length of 208.7 inches, a height of approximately 117 inches, and an inside turning radius of 247.2 inches, allowing for effective maneuverability on site. The drum thickness is 0.7 inches in the front, providing durability and longevity during operation. This model incorporates advanced features like electronic machine management for precise control, 3-point articulation for balanced weight distribution, and track offset for comfortable operation near curbsides, all contributing to its versatility and productivity in road construction and maintenance applications. It meets EU Stage V and EPA Tier 4 emissions standards for reduced environmental impact. The HD+ 120 VV HF is built to deliver reliable compaction with excellent directional stability and operator visibility.