Bauma 2022 innovations: New tandem rollers in the HX series
The new tandem rollers in the HX series represent intelligent compaction thanks to digital support
The HX series, presented at Bauma 2022, is the latest generation of pivot-steered tandem rollers from Hamm. The new flagships for asphalt construction are the successors to the DV+ seriesand offer many advantages on the construction site – particularly Smart Compact, a newly developed compaction assistant.
The HX 70i (7 t/55.4 kW) or HX 90i (9 t/74.4 kW) achieve high surface outputs on large construction sites, but also impress in the most challenging tasks, such as compaction in curves. The high precision allows for pivot steering with a large turning angle and track offset, as well as four different steering modes.
Thanks to modern engine management, the new tandem rollers in the HX series comply with the EPA Tier 4/EU Stage V exhaust emission standard and use fuel efficiently.
Increases the process reliability and, therefore, the quality of the compaction and the asphalt surfaces: The Smart Compact intelligent compaction assistant from Hamm.
Smart Compact compaction assistant for economical and high-quality compaction
With Smart Compact, Hamm is providing drivers with an optional digital compaction assistant. The drivers only enter whether a base, binder or asphalt surface course is to be compacted – Smart Compact does the rest. The assistant decides automatically whether to compact with vibration and big or small amplitude, with oscillation or statically.
If Smart Compact detects that additional compaction is no longer appropriate, e.g. due to an insufficient asphalt temperature, the machines automatically reduce the dynamic compaction power as well as the engine speed. This saves up to 15% in diesel. Smart Compact therefore not only increases the compaction quality, it also conserves the machine technology and resources.
