When mixing in-place / in-situ, a cold recycler granulates the existing pavement while mixing in binders and water homogeneously at the same time. This method produces a new construction material mixture in a single operation. The cold recyclers are equipped with a powerful milling and mixing rotor and highly efficient injection systems.

The WR is equipped with a powerful milling and mixing rotor and state-of-the-art injection systems. The cold recycler mills and granulates the existing asphalt pavement, injects binders and water in precisely metered quantities and mixes all three in a single operation. The new base layers produced in this in-situ process are distinctive for their exceptionally high bearing capacity.

Depending on the type of asphalt and layer thickness, or the earthworks to be performed, correctly ballasting the pneumatic tyre rollers is key to achieving high quality compaction. HAMM offers a flexible ballasting concept for the HP series of pneumatic tyre rollers (Tier 3, Tier 4) – quick and easy to use on the construction site, it enables optimal weight distribution to guarantee the best possible compaction results.

Thanks to market-driven machine solutions and customer-orientated services, the group of companies has grown to become the global market leader for mobile road construction machines.

In the Smart Compaction product range, HAMM offers various solutions for intelligent and simple compaction, compaction documentation and compaction control. The focus here is on digital interfaces between the operator and the machine.

The second decade of the new millennium is also marked by groundbreaking innovations at WIRTGEN.

If the bearing capacity of the asphalt surface layer has been compromised, the road structure must be completely rehabilitated. Cold recycling is the latest trend – a rapid, cost-effective and environmentally friendly process!

Spanning an area of more than 350,000 m², HAMM has the world's most advanced roller factory. The assembly halls, production facilities and logistics centre are perfectly interlinked in a highly efficient process.

Working on a range of construction sites in the earthworks and asphalt sectors requires rollers to have optimum driving and steering characteristics. To meet this need, HAMM has installed three-point articulation – a more sophisticated upgrade from conventional articulated joints – in all compactors and tandem rollers in the HD CompactLine, HD and HD+ series as standard.

The objective of compaction is to permanently bond the individual asphalt layers in order to achieve stability and resistance to deformation.

Ten per cent of employees in the HAMM AG plant work in the research and development sectors. They all have a clear purpose to follow in further developing and creating efficient machines. This purpose has by no means developed only in recent years – as a glance at the history of the company will show you.

Technical solutions – however ingenious they may be – will only succeed if they are user-friendly. HAMM recognised this fact at a very early stage. This is why product designers have been involved in the development process since the 1990s.

Find here all press releases of the WIRTGEN GROUP and its product brands WIRTGEN, VÖGELE, HAMM, KLEEMANN and BENNINGHOVEN on the subject of Bauma 2025.

With its entry into the material processing sector, the group of companies has created a further revenue stream and the conditions necessary for continuous growth.

Kleemann's plant in Göppingen has a total area of just under 150,000 m², 34,000 m² of which are production areas.