Dynapac develops ‘first of its kind’ electric tandem roller

By Leila Steed13 July 2021

Compaction equipment manufacturer Dynapac has developed a “first of its kind” electric tandem roller, as part of its new Z.ERA initiative to eliminate emissions.

Dynapac CC900 e tandem roller The Dynapac CC900 electric tandem roller.

The CC900 e electric double-drum vibratory roller, which is currently being field-tested in Sweden, weighs 1.6 tonnes and has an operating drum width of between 0.8 and 1.0 metres. 

Dynapac, a Fayat Group company, said “the new CC900 e tandem vibratory roller produces zero emissions at the point of operation”.

Fredrik Åkesson, product portfolio manager for rollers at Dynapac, said, “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.”

The company, which is soon to begin field-testing its new CC1000 electric virbatory roller with input from rental company Loxam, said the design of the CC900 e roller is based on the diesel-powered Dynapac CC900 series equipment range.

The CC900 e has an operating drum width of between 0.8 and 1.0 metres and offers a centrifugal force of 16.7kN. 

Similar to its diesel-powered sister models, the CC900 e provides users with static linear loads of 6.1kg/cm at the front and 7.9 kg/cm to the rear, as well as a nominal amplitude of 0.4 mm and travel speed of up to 8km/h. 

Åkesson said, “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.”

Dynapac CC900 e tandem roller The Dynapac CC900e will initially be produced in a limited number.

While the CC900 e tandem roller is not anticpated to be available on the construction equipment market until 2022, according to Dynapac it will initially be produced in a limited number.

In development for over year, work on the electric-powered model was done in collobration with construction contractor Skanska.

Sweden-based Skanska, which was recently awarded a €330 million contract to build a raw water tunnel in Norway, reviewed the CC900 e specifications and a number of prototype machines during Dynapac’s research and development phase.

Åkesson said, “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.

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

 

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