STONE DD70HF STATIC SMOOTH DRUM ROLLER

Technical Description

The STONE DD70HF is a heavy-duty smooth drum roller designed for efficient compaction in asphalt and soil applications. It features a 57-inch wide drum operating with a vibration frequency of 66.7 Hz (4,000 vibrations per minute), delivering a maximum centrifugal force of 21,080 lb in high mode and 7,820 lb in low mode. Powered by a Cummins 4B naturally aspirated engine, this roller produces approximately 80 hp, suited for medium-duty compaction tasks. The machine’s operating width is 64 inches, with a turning radius inside of 141 inches, allowing for precise maneuverability on-site. It has an operating weight of 14,895 lb, a ground clearance of 22 inches, and a height to the top of the cab measuring 9.17 feet. The overall length is roughly 14.5 feet. The roller ensures reliable performance with a fuel capacity of 37 gallons and a hydraulic fluid capacity of 17 gallons. It operates on a 12-volt electrical system supported by a 95-amp alternator. The maximum travel speed ranges between 6.6 mph and 7 mph, enabling effective site coverage. The Cummins 4B engine is a compact 3.9L inline 4-cylinder diesel with a mechanical fuel pump, noted for its simplicity and robustness ideal for construction equipment requiring consistent power with low complexity. This combination of power, size, and vibration performance makes the Stone DD70HF a capable and dependable machine for smooth drum compaction tasks in medium-scale road construction and maintenance projects.