HP 280 Pneumatic-tyre roller

For pneumatic tyre rollers in the HP series, HAMM offers a flexible ballasting concept that can be used quickly and easily on construction sites. Two large ballast chambers between the wheel sets provide a foundation for ballasting. Here, pre-made ballast bodies made of steel, heavy concrete or concrete can be inserted or removed using a forklift truck, for instance. The different ballasting variants therefore allow for a high degree of flexibility when selecting the wheel load, which, alongside the inner tyre pressure and roller speed, is key to compaction force and depth.

Hammtronic is an electronic machine management system that monitors and controls all key machine functions. It supports controlled machine operation, efficient performance, and demand-based fuel consumption. One of the functions of Hammtronic is the automatic adjustment of the diesel engine speed to the power requirements of the individual drives. In addition, Hammtronic controls acceleration and deceleration and distributes the drive torques to the drum axle or the rear wheels based on current operating data. The hydrostatic vibration drive is also regulated by Hammtronic. Furthermore, the various steering programs (DV+ series only) are controlled to ensure smooth and uniform movement of both drums.