Dynapac unveils electric tandem roller

Compaction and paving equipment manufacturer Dynapac has underscored its commitment to helping customers reduce their environmental impact and fuel consumption by developing a unique, electric powered tandem roller.

The new machine, which is currently undergoing field-testing, is designed to compete in the 1.5 ton, tandem vibratory roller class. It features a drum width of up to 1 meter, develops a centrifugal force of 16.7 kN, a nominal amplitude of 0.4 mm, and a static linear load (front/rear) of 6.1/ 7.9 kg/cm.

Unlike the diesel-fueled model upon which it is based, the new CC900 e tandem vibratory roller produces zero emissions at the point of operation. With electrically-powered and hybrid machines becoming increasingly popular, particularly among equipment rental fleet operators, the CC900 e comes to the market at a time where demand is high.

Initially, the CC900 e will be produced in limited edition.

A collaborative concept

Weighing in at 1.6 tons and with an operating width of 0.8 to 1.0 meters, the CC900 e double drum vibratory roller has been designed to satisfy the specific demands of utility contractors and rental fleet operators alike.

It delivers the same linear load, amplitude, frequency and travel speed as the diesel-powered model.

To ensure that this new product met the specific needs of users, Dynapac developed the electric-powered CC900 e in co-operation with one of those customers; global contractor SKANSKA.

From the very beginning of the research and development phase, SKANSKA has reviewed specifications and prototype machines.

“Co-operation is the key to developing a successful product and direct user input is incredibly valuable to a project of this kind. From the user perspective, it is equally important to be acquainted with the equipment at an early stage. Even though the compaction performance is unchanged, there are still small changes that have to be the work procedures when transitioning from traditional fossil fuel to electric power,” says Dynapac’s Fredrik Åkesson.

“The earlier operators can be exposed to those changes, the easier it will be to adapt to the new equipment.”

An emission-free future

The CC900 e has been in development for more than two years and involved a 20-person research and development team.

Although the battery system used in the new model is both proven and popular, it has been subjected to rigorous testing to ensure that it meets the specific needs of the compaction equipment sector and is capable of withstanding the vibration generated by the roller.

During that testing, prototype machines have clocked massive amounts of hours in operation. Only now is the Dynapac design team willing to begin making the machine available.


“We have seen electric and battery power being applied to mini excavators, skid steer loaders, access equipment and site dumpers. And these have been widely welcomed by forward thinking and environmentally-aware rental fleet operators and contractors. The only thing missing has been an electric-powered tandem vibratory roller to run alongside these other zero emissions machines,” concludes Dynapac’s Fredrik Åkesson.

“With the development of the CC900 e, Dynapac has taken a massive technological step. We are proud to be the first realizing this from an “exhibition concept” machine into something we now have on the field. That step sets our customers on the path to a zero emissions future.”