Dynapac USA has introduced four new models of its CA-series single drum vibratory rollers. The CA5000, CA5500, CA6000 and CA6500 have been equipped with a number of enhancements over previous models, including optimized drum amplitude, automatic bouncing control and an overall design that makes it easier to service the equipment.

Compaction is delivered by the new models utilizing drum amplitude of .083 in. (.2 cm.) This increased force allows rock fill to be compacted in layers almost 9 ft. (2.7 m) thick with rock sizes up to 3 ft. (.9 m) in diameter. It also requires fewer passes to reach compaction specifications.

Automatic bouncing control measures feedback from the drum and eliminates drum bouncing or over compacting. This new feature improves compaction performance while extending the useful life of the equipment by eliminating drum double-jump, which could lead to premature failure of machine components, according to the manufacturer.

The CA6000D model also features a governor to avoid compacting at a too high a speed.

A full package of design features enhances the serviceability of all models. The new cross-mounted engine not only offers easy access for service and maintenance, it also provides enhanced weight distribution and reduces overall machine length. The hydraulic pumps, arranged in line with the engine, are easily accessed for servicing.

Another key new feature is the “ECO mode” fuel conservation system that minimizes fuel consumption as well as carbon dioxide emissions by ensuring that the roller does not consume more power than needed at any given time. The new models also give attention to enhanced safety features with electronic drive control, which provides a “quick brake” function and a tilt indicator. Dynapac’s anti-spin traction system ensures consistent on-the-go traction and gradeability.

The combustion air intake is placed on the engine hood with the outlet running down the sides, thereby keeping the inlet air as clean as possible. When combined with the ejector exhaust outlet, this placement also serves to minimize noise levels.

The new CA rollers have static linear loads of 280 pounds per linear inch (pli) on the CA5000, 310 pli on the CA5500, 335 pli on the CA6000 and 365 pli on the CA6500. All four models are equipped with interim Tier IV engines from Deutz, and can use a mix of biodiesel and regular diesel fuel.

Optional features on the new rollers include

• Service interval alert on instrument panel indicates when a particular service is required

• Sustainability package: an rpm management system, biodegradable fill-for-life hydraulic fluid, 50 hours service kit, electrical engine block heater and working lights with LED lamps (CA6000D only.)

• Air-conditioned cabs with spin-around seat and steering module, offering movement of up to 180 degrees without stressing neck or body. Spin-around seats also are available as a standalone option, without the cab.

• Productivity software, including Dynapac CompBase, providing task planning, execution and analysis, and CostCtrl web-based software for life-cycle cost control and increased machine availability.

The new CA rollers are available in standard models with a choice of specifications and available options allowing customers to “build” their own machines, or choose from a number of pre-defined packages.

For more information, visit www.dynapac.us.

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