The next step in zero local emission compaction: HX 70e battery-powered electric tandem roller

At Bauma 2025, compaction specialists Hamm are introducing a new model in the series of pivot-steered tandem rollers: The HX 70e VV-S with two vibration drums is fully electric, helping the construction industry to hit emissions targets with a view to making road construction sustainable. The HX 70e VV-S will also be joined by the HX 70e VO-S, a model variant with an oscillation drum. As an ongoing technology project, both tandem rollers are initially being put into operation on inner-city construction sites in Europe.

More powerful drive, fast charging, quiet operation

Hamm’s HX 70e makes use of tried-and-tested components, such as the 400 volt Li-ion battery from Kreisel with a capacity of 63 kWh. The machine is charged via a Type 2 connector, with other charging options such as Type 1, J1772 and CCS also to be added. With the fast charge option, the battery can be charged from 20% to 80% in under an hour. Owing to the electrical components, the battery-powered electric tandem rollers are not only quieter but also more efficient in operation than their diesel-driven counterparts. This is especially true of the models with the oscillation drum. Here, the already low noise of oscillation is combined with the quiet electric drive, making the machines the perfect choice for use in vibration-sensitive and noise-sensitive environments, such as within the vicinity of hospitals or historical buildings.

Very comparable with diesel-powered rollers

The new HX 70e tandem rollers deliver the same compaction power as the diesel-engined machines but in fact produces a higher output at their peak. The battery-powered electric rollers are operated in virtually the exact same way as the conventional diesel counterparts, with the only difference being the display, which now features new symbols to give operators an intuitive user experience.

Easy maintenance, low operating costs

Another added benefit of the new battery-powered electric tandem rollers is their lower maintenance requirement. With the electrical components of the high-voltage system having long maintenance intervals and not requiring the same maintenance requirements as machines with diesel engines, operators benefit from low operating costs. When it comes to matters of servicing and maintenance, customers and users can rely on the same service quality they have come to expect of the Wirtgen Group. Another plus point: Just like the diesel-powered machines, the new models can also be connected to the John Deere Operations Center.