INGERSOLL RAND SD-77DA (ASPHALT) STATIC SMOOTH DRUM ROLLER

Technical Description

The Ingersoll Rand SD-77DA is a static smooth drum roller specifically designed for asphalt compaction. It features a 66-inch wide smooth drum with a diameter of 48.1 inches, providing a 73-inch operating width. The drum vibrates at a frequency range of 1,850 to 2,025 vibrations per minute (31 to 42 Hz), which enhances compaction efficiency while maintaining smooth surface results. Powered by a 99-horsepower Cummins engine, the roller delivers reliable and efficient performance for roadway paving applications. The machine has an overall length of 17.06 feet, a width of 6.09 feet, and a height to the top of the cab of 9.71 feet, ensuring good maneuverability with an inside turning radius of 122 inches. It has a ground clearance of 15.6 inches and a wheelbase of 9.1 inches (notably small, likely a typographical error in the source). The operating weight is approximately 17,346 pounds, supporting strong compaction pressure with static axle loads of 10,547.8 lbs on the front and 6,799 lbs on the rear axles. The hydraulic system fluid capacity is 130 gallons, and the roller achieves a maximum travel speed of 8.2 mph. The drum’s centrifugal force varies from 5,845.1 lbs at low amplitude to 26,077.9 lbs at high amplitude, facilitating effective compaction force control. Electrical systems operate at 12V with a 95-amp alternator. This smooth drum roller is optimized for asphalt surfaces, offering precision compaction and dependable engine power to meet demanding paving project needs.