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Applications in earthworks, road construction and material processing can be solved profitably by our technologies. We explain how it works.
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The WIRTGEN GROUP is an internationally operating group of companies in the construction equipment industry. Find out more about our production and where you can find us.
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Sustainability is an integral part of our corporate principles. We know that the future belongs to climate-friendly products. We’re already manufacturing them today.
Sustainability

Two HX series road rollers compact a road surrounded by green landscape

Sustainable compaction technology

For many years, HAMM has been developing fuel-efficient machines and machine control systems that ensure an efficient and, in turn, resource-conserving and zero-emissions workflow on the construction site. This has already enabled HAMM to dramatically reduce noise, fuel consumption and CO₂ emissions. Read on to find out more about some of the most important solutions and components in this regard.

Electric rollers

HAMM heralded the arrival of the e-machine era in 2022 with eight fully electric tandem rollers. The vibration or oscillation unit is driven by electric means only, using specially designed synchronous motors. As a result, the efficiency rating more than doubles and the energy demand decreases accordingly too. Even the drive motor and steering motor are electrically operated. When combined with the powerful battery (23.4 kWh), there is enough energy for a typical working day.

All e-components require no maintenance and offer impressively high torque. The power is always available to deliver peak performance whenever it is needed. Furthermore, a large portion of the braking energy is fed back into the system by means of regeneration.

HAMM has fine-tuned every aspect of the electric rollers to conserve resources. The models feature an automatic motor stop as standard. This deactivates all functions when the machine is idling to save battery capacity. In ECO mode, the control limits the driving speed to 5 km/h. This also saves energy, as does the LED lighting that is fitted as standard.

Further information

Smart Compaction

Thanks to Smart Compaction, HAMM is able to offer a range of systems to support compaction. This includes solutions for comprehensive monitoring, documentation and quality assurance during compaction. There are also various integrated assistance systems for automatically selecting the compaction parameters and for regulating the compaction energy. With these systems, the quality of the compaction increases while the number of double passes decreases. As a result, fuel consumption and CO₂ emissions go down.

Within asphalt construction, the ‘Smart Compact’ compaction assistant automatically switches the rollers to ECO mode as required. This reduces the fuel consumption by up to 15%. In earthworks, Smart Compact controls the amplitude at which the drum vibrates, thereby lowering fuel consumption.

Further information

Oscillation: Quiet and low-vibration

Rollers with oscillation are extra quiet in their compaction work, because this type of compaction quickly rotates the drum back and forth but without lifting off from the substrate – unlike vibration drums. This results in significantly lower noise emissions. Plus, in comparison to vibrating drums, with oscillation drums, only around 15% of the vibration is directed into the substrate around the roller.

Power Hybrid: Lower fuel consumption, lower noise emissions

The Power Hybrid rollers from the HD+ series represent an important milestone for the Development team. The models combine a diesel drive with a hydraulic accumulator. This way, they consume around 15% less fuel and are significantly quieter.

Electric rollers: Zero carbon emissions in operation

With the eight electric tandem rollers from HAMM’s range, construction companies can compact without producing any emissions at all on site. Since they are not powered by combustion engines, these rollers are significantly quieter than their diesel-engined sister models.

HVO: With combustion engine but without fossil fuels

Most of the HAMM rollers currently available on the market can be operated not only with diesel but also with non-fossil fuels. These include pure biodiesel (B100), i.e. diesel fuel made from plants or mixtures such as B7 or B20.

They can even be powered by HVOs – hydrotreated vegetable oils obtained from used cooking oils, for instance. These fuels can also be mixed in with diesel fuel or can replace it entirely.

LED lighting

Most HAMM rollers now feature LED lighting. These lights consume very little energy, contributing to the rollers’ energy-efficient operation.

Pivot-steered tandem roller with a view inside the split oscillation drum

Power Hybrid tandem rollers of the HD+ series with an explanation of the technical components

Various earthworks and road construction rollers from the Hamm product range

Machine management systems

HAMM has developed many technologies to reduce fuel consumption. They are part of the reason customers are saving energy and cutting emissions on construction sites around the world every day.

A hand holds a crystal ball with leaves. Various symbols indicate environmental themes.

HAMMTRONIC

AUTOMATIC ENGINE-OFF FUNCTION

ECO MODE

TELEMATICS SOLUTIONS

Regular maintenance not only extends the service life of a roller – it also maximises its availability. That’s why technologically advanced construction machines and sophisticated telematics solutions go hand in hand in the WIRTGEN GROUP. Smart monitoring systems such as WITOS or the John Deere Operations Center not only simplify maintenance scheduling for machines, but also increase both productivity and profitability.