DYNAPAC CA402D STATIC SMOOTH DRUM ROLLER

Technical Description

The Dynapac CA402D is a static smooth drum roller designed for effective compaction primarily of rock fill and granular materials. It features a single vibratory drum with a diameter of 60.8 inches (1543 mm) and a width of 83.9 inches (2130 mm), providing a broad compaction surface. The machine delivers centrifugal forces of 67,443 lbs in high vibration mode and 32,822 lbs in low mode, with a nominal amplitude of 0.1 inches and vibration frequency of 33 vibrations per minute, ensuring both static and dynamic compaction capabilities. Powered by a water-cooled Cummins QSB 4.5 turbo diesel engine rated at 125 hp (93 kW) at 2200 rpm, it balances power and efficiency, supported by a 66.1-gallon fuel capacity for extended operation. The CA402D has an operating weight of approximately 30,424 lbs (13,800 kg), optimized for high compaction force while maintaining maneuverability. Key dimensions include a ground clearance of 15.8 inches, wheelbase of 9.5 feet, overall length of 18.3 feet, and a height to the top of the cab of 9.8 feet. Equipped with 23.1x26 tires, it offers adequate traction and stability. The roller’s design includes advanced hydrostatic drive with axial piston pumps and constant displacement motors for vibration, steering, and drive functions. Parking and service braking are hydraulic with failsafe multidisc brakes in the drum gearbox and rear axle, enhancing operator safety. The cab is optionally equipped with ROPS for operator protection. The CA402D is suitable for medium to heavy-duty compaction tasks in road construction and earthworks requiring efficient, high-quality surface and subbase compaction.