Dynapac says that its new fifth generation CA single drum vibratory rollers, the CA5000, CA6000 and CA6500, offer performance upgrades over other machines. These machines have transverse-mounted engines that improve serviceability as well as optimised amplitude to boost compaction performance. A novel Active Bouncing Control is said to prevent damage to the machines as well over-compaction. High comfort cabs, good manoeuvrability and reduced noise levels and fuel consumption all help to make these machines
The three new CA rollers have provide linear loads of 50, 60 and 65kg/cm, respectively. A high amplitude of 2.1mm enables rockfill to be compacted in almost 2m thick layers and the rock size can be up to 1m in diameter. Higher volume capacity is claimed along with and fewer passes to reach compaction specifications. This further saves on fuel and reduces the cost per compacted/m3.
The sophisticated process control boosts productivity and the firm offers Dynapac CompBase software for planning. A compaction meter and analyser on the roller allow work to be monitored, while results can be evaluated using the Dynapac Compaction Analyser (DCA). Dynapac’s CostCtrl software on the web and an extended warranty for CA rollers allow customers monitor life-cycle costs and maximise machine availability. The new CA rollers are available with Stage 4 Interim/Tier IIIB
The new cabs operator comfort and good visibility. A spin-around seat and steering module allows movement of up to 180°. Short machine length and good turning radii, make manoeuvring easier in difficult conditions. The automatic bouncing control prevents damage by eliminating drum double jump, or over-compaction. The CA6000D also features a speed limiter to avoid compacting at too high speed. A service interval alert in the instrumentation display indicates when service is required and what action to take. The new CA rollers are available in standard models with a long list of different specifications and an extensive choice of optional extras.
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