Compaction innovation on show at bauma

COMPACTION INNOVATION

on show at bauma

Hamm’s new Smart Doc and Smart Compact digital tools take compaction performance to a new level

With the latest-generation HC series, Hamm is bringing together all compactors with an operating weight of 11 t to 25 t on a single platform. Research and development (R&D) upgrades include an up to 15% increase in centrifugal force, as well as improved efficiencies thanks to an integrated ECO mode, with options that include automatic engine stop.

Going forward, Hamm’s small compactor segment (5 t to 7 t) will be represented by the HC CompactLine series. In addition to improved driving comfort, Hamm’s R&D team have increased the traction and gradeability.

The groundbreaking HX series

The HX series is the new flagship from Hamm for asphalt construction. These pivot-steered tandem rollers (7 t or 9 t) are following in the footsteps of the DV+ series and are designed for high-quality production. There are models with split and non-split vibration and oscillation drums, as well as combination rollers.

A key component of the well-conceived compaction technology is the integrated automatic reverse function, which brakes and accelerates the rollers quickly, but smoothly. The electrically adjustable seat operating unit, which automatically turns to the direction of travel when reversing, is also a unique feature.

Eight tandem rollers with electric drive

Unveiled for the first time at bauma 2022 are Hamm’s eight electrified tandem rollers in the HD CompactLine series. Their operation and compaction parameters are identical to the corresponding diesel-driven machines, with the key difference that they are completely battery-powered. Significantly, these rollers can work for an entire workday on a single charge. These models also include the world’s first electric combination roller with oscillation.

Tyre heating with diesel instead of gas

Another innovation showcased at bauma is Hamm’s improved heating solution for its pneumatic tyre rollers, which does away with the need for gas. The new burner is fed with diesel from the fuel tank, efficiently preventing asphalt from adhering to the tyres during compaction.

Smart Doc and Smart Compact

To optimise overall results, Hamm has also invested in digital technologies, which include the Smart Doc app. The latter displays, in real time, how the compaction develops and links the machine data to GNSS position data. The app uses this data to create compaction reports in PDF format and is therefore also suitable for self-monitoring.

An allied development is Hamm’s Smart Compact compaction assistant, which raises the quality of the compaction to a new level by integrating local weather data into the evaluation. In addition to the physical properties of the asphalt, the system also evaluates its complex cooling behaviour. Using this, it continuously determines the optimal setting for each drum separately – i.e. whether compaction is carried out with vibration, with big or small amplitude, with oscillation or statically.

As an added benefit, Smart Compact can determine when to move the roller into ECO mode and therefore save fuel.