DYNAPAC CA702 STATIC SMOOTH DRUM ROLLER

Technical Description

The Dynapac CA702 is a heavy-duty static smooth drum roller designed for large-scale soil and rockfill compaction projects, such as dams, airfields, and major infrastructure works. It features an 84-inch (2130 mm) wide smooth drum with a diameter around 66–67 inches, delivering high compaction performance through vibrations at frequencies of 28 Hz and 30 Hz with a nominal amplitude of 0.1 inches. The roller generates a powerful centrifugal force of up to 74,187 lb at high amplitude and 57,101.5 lb at low amplitude, ensuring effective soil densification. Powered by a 220 hp Cummins QSB6.7 six-cylinder water-cooled engine, the CA702 reaches maximum speeds between 5 to 6.9 mph and provides a gradeability of 45%, supporting operation on varying terrain. The machine has an operating weight of approximately 59,300 to 60,000 lb, with an 84.6-gallon fuel capacity, ensuring extended operation endurance. Its dimensions include an overall length of 256.5 inches, a wheelbase of 131.54 inches, ground clearance of 15.95 inches, and a total height of nearly 9.8 feet with ROPS/cab. Steering allows a maximum angle of 38 degrees, facilitating good maneuverability. Hydraulic systems control driving, vibration, and steering, featuring axial piston pumps and motors for efficient power transmission. Safety and braking are managed by hydrostatic service brakes and failsafe multidisc brakes. The CA702’s robust design and powerful compaction capabilities make it well-suited for intensive soil compaction jobs requiring high productivity and durability.