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Dynapac CC4000-6200 range

Sixth generation of Dynapac large asphalt rollers brings compaction quality to a new level!


The first generation of Dynapac large asphalt rollers, the CC40, was introduced in 1964. Atlas Copco is now introducing the sixth generation, the CC4000 - CC6200. The machines are extremely operator friendly, offering unmatched ease of operation, excellent visibility and highest quality compaction. The engines incorporate the latest emission reduction technology and performance is enhanced by high vibration frequency and an optional active front drum steering system with big off-set that takes maneuverability to a new level. 

Versatile driving position, excellent visibility

When designing the new generation Atlas Copco had, as always, the operator first in mind. The seat and steering module can be swiveled and are slidable from the left side of the roller to the right. This makes it possible for the operator to slide over and see the drum edges in a more ergonomic way. 

As an option you can swivel the seat so that the operator is facing fully to the rear, allowing him or her to work with the same good ergonomics on both sides of the roller when moving backwards. This eliminates the limitations of defined forward and reverse working directions. 

Together with this option comes the electronic mini-steering wheel that makes it even easier to steer the roller smoothly and accurately, taking the ergonomics and maneuverability to an even higher level. 

Simpler controls, more intelligent machine

The new instrument panel and controls on the sixth generation were developed with “simplicity” as the key concept. The bigger touch screen ensures maximum visibility and, for those who prefer, there is a display control which can be used instead. The latest technology simplifies roller operation, ensures optimized handling and thus increases the quality of the compaction job. 

The start-up procedure is another example of simplicity. Turn the ignition key, set the forward/reverse lever in neutral and push the start/stop button. The machine intelligence takes care of the rest, including pre-heating, and the engine starts when ready. Another feature is the possibility to turn the working lights on and off individually, directly on the display.

Advanced steering gives unmatched maneuverability

Much appreciated by machine operators, Atlas Copco has for some time created offset on its Dynapac asphalt rollers by the unique method of combining articulated steering with a steerable rear drum. On the sixth generation Atlas Copco has taken it a step further by increasing the offset to 520 mm (20.5 in) and using the front drum for offset for even better driving accuracy.

The increased offset to 520 mm (20.5 in) gives a very small turning radius when used in combination with the steering hitch. It makes it possible to move a larger portion of the machine mass inwards on the road when compacting weak road edges, thus making the roller more stable. It also increases the surface capacity when making the final static passes to get rid of marks in the mat.

Using the front drum for offset means that the roller operator will have very good control of the front drum edges and can follow a curb or other obstacles with a high degree of accuracy.

Fast, effective compaction for thin layers

High vibration frequency compaction has long been an important feature on Atlas Copco Dynapac asphalt rollers. Modern thin layers need to be compacted fast because they cool off quickly. A higher amplitude will compact fast but might crush the aggregate material. 

In the the sixth generation Atlas Copco continues its successful concept of using high vibration frequency with low amplitude in order to maintain high efficiency on modern thin asphalt layers. This gives very effective compaction for thin layers. The rollers can, of course, also be used for thick layers with high amplitude and a “normal” vibration frequency.

Emissions and fuel consumption reduced

During the development of the Dynapac large asphalt rollers the focus has been on sustainability and the working environment. Accordingly, the machines incorporate the latest emission reduction technology, which complies with the regulations in Europe and North America for Stage IV/T4 Final engines. For markets that do not yet have ultra-low sulfur fuel available, Atlas Copco offers a Stage IIIA/T3 engine alternative.

Thanks to the automatic idling system on the sixth generation, if the roller stands still for more than 10 seconds at high rpm in neutral, the engine will automatically go down to idle rpm in order to reduce emissions and fuel consumption and emit less noise. This system is standard on the entire range.

As an option an EcoMode system can be added that will optimize the required rpm, always keeping it as low as possible but still with the correct vibration frequency. The EcoMode system gives up to 15% lower fuel consumption and a lower noise level.

Advanced water system ensures reliability

On the new Dynapac machines, Atlas Copco has drawn on its reservoir of experience to make the water system, possibly the most important system on an asphalt roller, as reliable as possible.

All rollers in the range are equipped with Automatic Water Control, a sprinkler timer, full flow sprinkler button, dual sprinkler pumps and dual sprinkler bars. Reliability is further enhanced by three-stage filtering, including a strainer in the fill hole, a filter located close to the pump, and a strainer on each nozzle.

The surface of the drum, plus all sprinkler bars and nozzles, are visible from the driving position so the operator can clearly see if a nozzle is malfunctioning or if the drum is picking up asphalt due to insufficient water. 

The water tank is easy to reach standing on the ground and can be filled from both sides. All sprinkler nozzles, including the back-up nozzles are within easy reach. Anti-freeze can easily be added to the sprinkler system to protect it from freezing.