VOLVO DD90HF STATIC SMOOTH DRUM ROLLER

Technical Description

The Volvo DD90HF is a static smooth drum roller designed for high-performance compaction in highway and large paving projects. It features a 66-inch (1,675 mm) wide double drum with a diameter of 48 inches (1,220 mm) and shell thickness of 0.75 inches (19 mm), providing a nominal capacity of up to 290 tonnes of hot mix asphalt per hour. Its vibration system supports frequencies from 2,500 to 3,800 vibrations per minute (vpm), with eight amplitude settings to optimize compaction for varying lift thicknesses and materials. Powered by a Cummins QSB 4.5 Turbocharged 4-cylinder engine delivering 110 hp at 2,200 rpm, the DD90HF offers robust hydrostatic propulsion driving both drums simultaneously, enhancing traction and gradeability up to 25%. The roller weighs approximately 21,705 lb (9,845 kg) with a fuel capacity of 45 gallons and hydraulic system fluid capacity of 35 gallons. The machine’s overall width is 6.6 feet (1.91 m), with an inside turning radius of 17.2 feet (3.56 m), enabling maneuverability in confined areas. It reaches a maximum speed of 8.7 mph and operates on a 12V electrical system supported by a 95-amp alternator. The operator’s station rotates 180° for improved visibility during operation, and the machine includes safety features such as skid-resistant decking and guard rails. The vibration motors use an eccentric drive system, with vibration activation selectable by drum and adjustable both manually and automatically based on machine speed for consistent, efficient asphalt and soil compaction.