The HAMM HD+ 90i VV HF is a high-performance smooth drum tandem roller designed for asphalt compaction. It features two smooth, non-split vibratory drums each with a width of 66.1 inches and a diameter of 47.2 inches, delivering a static linear drum load of approximately 157.4 lbs/in. The machine operates at dual vibration frequencies of 45 and 67 vibrations per minute, optimizing compaction efficiency. Powered by a Deutz TCD 3.6 L4 four-cylinder engine producing about 114 hp (85 kW) at 2,300 rpm, it offers robust and reliable performance compliant with EU Stage V/EPA Tier 4 emission standards. The HD+ 90i VV HF integrates HAMMTRONIC, an advanced electronic machine management system, which controls engine speed, vibration drive, and torque distribution for enhanced safety, fuel economy, and smooth operation. Its articulated design includes a turning radius of 232 inches (inside), ensuring excellent maneuverability. The operational width is approximately 70.5 inches, with an overall machine weight near 20,859 pounds, providing optimal ground contact. Additional features include a pressure water sprinkling system with a 220-gallon tank for drum cooling and dust control, an ergonomically designed cockpit with adjustable operator platform, and options for smart compaction technology like the HAMM Compaction Meter (HCM). With a travel speed up to 7.5 mph and a hydrostatic drivetrain, the HD+ 90i VV HF assures efficient asphalt compaction with high productivity and superior operator comfort for road construction and maintenance projects.