Dynapac’s new CC234HF tandem asphalt roller is one of four new models in the 7 to 9-ton (6.3 to 8 t) class. Designed with performance, efficiency and operator comfort in mind, the CC234HF combines the best features of the CC line and is available in a Combi version, the CC234CHF, according to the manufacturer.
High Performance Compaction
Several standard and optional features allow the CC234HF to produce high quality surface finishes. The pivot or offset steering and optional 13-in. (33 cm) offset drum give increased maneuverability and make operating easier in confined spaces, reducing the risk of damaging curbs and improving compaction on longitudinal joints and unsupported edges. The absence of over-the-drum water tanks ensures continuous visibility of the drum surfaces, sprinkler nozzles and drum edges.
The CC234HF is equipped with split front and rear drums that prevent cracking and stretching the mat. With high frequency/low amplitude for thin layers and high amplitude for thick layers, the CC234HF can compact any type of asphalt mix. The optional edge press strengthens the asphalt edge, and the CC234HF also can be equipped with a joint cutting disc for asphalt edge trimming prior to jointing.
The CC234CHF, Combi version incorporates the offset steering, split front drum and pneumatic tires. Standard equipment on the CC234CHF includes an emulsion tank; sprinkler nozzles; handles and footsteps for tank filling, access and safety; and quick-release of the scrapers. A heat shield is an available option.
The CC234HF can be optimized for any type of asphalt application, and the optional DCA-A compaction analyzer provides additional data and documentation for quality analysis — taking the guesswork out of compaction.
The CC234HF is powered by a Cummins QSB 3.3 (Tier III/Stage IIIA) water-cooled turbo diesel engine with after cooler that is rated at 80 hp (60 kW) at 2200 rpm. A 99 hp (74 kW) engine also is available. The use of a double pump vibration system eliminates the need for a vibration valve, making the system more efficient and reducing fuel consumption.
Efficiency enhancements have saved approximately 8 kW in the operation of the CC234HF, which has resulted in a reduction in noise and CO2 emissions, reduced fuel consumption, and improved running costs. Furthermore, the Dynapac automatic engine idling system cuts the idling speed after 10 seconds at full rpm in neutral, further reducing emissions and minimizing noise.
The roomy engine compartment is service friendly. Daily service points are few and the heavy duty, maintenance-free steering hitch is mounted high to allow trouble-free access to the engine and water tank. Furthermore, the 211-gal. (799 L) water tank and sprinkler tubes are corrosion-free.
Hydraulic hoses can be replaced in individual segments, avoiding the need to replace the entire length, and drum shock absorbers also are easily replaced since there is no need to remove the forks or the drums.
for Consistent Results
The swiveling operator’s platform allows a 180-degree turn of the seat, instruments and levers to keep the operator in full control with a clear view of the drum edges and asphalt. The four-post ROPS and 1x1 meter view minimize obstructions on all sides.
As a safety feature, the machine will drop out of the soft mode and brake immediately if the lever is moved quickly, signaling the need for an emergency stop.
The engine compartment is located on the rear module, which reduces noise and heat for the operator. Low vibration levels on the operator’s platform help decrease operator fatigue and increase productivity.
For more information, visit www.dynapac.com.