INGERSOLL RAND CR70 STATIC SMOOTH DRUM ROLLER

Technical Description

The Ingersoll Rand CR70 static smooth drum roller is a compact and robust compaction machine ideal for asphalt and soil applications. Powered by a Cummins B 3.9L inline four-cylinder diesel engine delivering 80 hp (60 kW), it ensures reliable performance and fuel efficiency. The roller features a single smooth drum with a width of 57.1 inches (1,450 mm) and a diameter of 41.3 inches (1,050 mm), providing effective surface contact for superior compaction. Its static axle load is evenly distributed with 7,518 lb (3,410 kg) at the front and 5,776 lb (2,620 kg) at the rear, optimizing ground pressure and stability during operation. The CR70 operates with a drum vibration frequency of 55 Hz, producing centrifugal forces up to 18,007 lbf (80 kN) in high amplitude mode and 8,992 lbf (40 kN) in low amplitude mode, with corresponding amplitudes of 0.021 in (0.54 mm) and 0.011 in (0.27 mm), enhancing compaction effectiveness. Weighing approximately 6.03 tonnes (13,293 lb), this roller balances maneuverability and compaction force. Its design suits medium-scale construction and roadwork projects requiring dependable soil and asphalt compaction. The Cummins engine’s durability and proven technology complement Ingersoll Rand's precision engineering, ensuring efficient, long-lasting operation in diverse jobsite conditions.