The HAMM HD+ 90i VV is a robust smooth drum roller designed for efficient compaction in road construction and similar applications. It features two smooth, non-split steel drums, each 47.3 inches in diameter and 0.7 inches thick, providing a static linear load of 157.4 pounds per inch. The machine delivers powerful vibratory compaction with a high centrifugal force of 16,860.7 lbs and a low force of 13,488.6 lbs, operating at vibration frequencies of 42 and 50 vibrations per minute with a nominal amplitude of 0.1 inch in both high and low modes. Powered by a DEUTZ TCD 3.6 L4 diesel engine producing 114 hp (85 kW) at four cylinders, the roller offers a maximum speed of 3.8 mph. Its operating weight is approximately 26,147 lbs, with variants for cabin and ROPS configurations weighing around 20,547 lbs and 20,172 lbs respectively. The roller’s dimensions include a ground clearance of 31.5 inches, overall length of 193 inches, width of 6.1 feet, track width of 6 feet, and a wheelbase of 145.7 inches. It features a 220.4-gallon water spray tank to ensure effective dust control during operation. The steering angle is limited to 10 degrees for precision handling. This model combines strong compaction performance with operator comfort and machine stability, making it suitable for various smooth drum roller applications in heavy-duty paving and soil compaction tasks.