In an oscillation drum, two eccentric shafts are fitted at a 180° angle to each other. Both unbalanced masses rotate synchronously, which causes the drum to perform a rapidly alternating forward-backward rotational movement. This results in the compaction energy being transmitted forward and backward tangentially into the ground below in the form of shear forces. The oscillation system developed by HAMM achieves compaction results that are scientifically proven to be more homogeneous and higher-quality, leading to faster, more significant compaction increases. The scope of application is enormous.

Three-point articulation is different to conventional joints due to its geometric arrangement and connection of the three individual joints and one additional connecting link between the two conventional upper joints. This allows optimum steering, excellent driving safety and maximum driving comfort.

In the Smart Compaction product range, HAMM offers various solutions for intelligent and simple compaction, compaction measurement, and documentation. The focus here is on digital interfaces between the driver and the machine as well as various assistants. The innovations offered here (such as Smart Doc) contribute significantly to meeting the increasing demands for high compaction quality in modern earthworks and road construction, and directly integrating the megatrends of digitalization and resource conservation into daily construction site activity.