KNOW-HOW

Clever technology, whatever the application

Compaction equipment for soil and road construction

Rollers from Hamm feature a number of different components which assist them in achieving the best possible compaction results.

Hammtronic

Hammtronic is an intelligent technology for optimizing all machine functions. It can prevent spinning of the roller’s drum or wheels, for example, which allows Hammtronic rollers to climb slopes with gradients of up to 70%. Optimum calibration of the engine and drive systems enables the overall diesel consumption to be reduced by 30% to 40%. In the DV series, Hammtronic also automatically governs the water spray system. On the whole, Hammtronic guarantees considerably higher production rates at lower operating costs.

Driving and operating concept HI DRIVE

The HI DRIVE concept allows the roller driver to drive forward all the time. When in automatic mode, the roller comes to a gentle stop as soon as the driver initiates the reversing process. The machine’s optimized braking behaviour prevents unwanted bumps and undulations in the pavement. While the roller begins travelling in the opposite direction, accelerating to the previously driven speed, the driver’s seat turns automatically, thus ensuring that the driver is always seated in the direction of travel and has a full view of his working environment. This feature allows perfect compaction results to be achieved, while ensuring that the roller driver enjoys excellent ergonomics and a high level of safety.

Perfect range of vision

Good visibility is a prerequisite for precise compaction. The free-view concept (open frame design and glass all the way down to the driver’s platform) implemented in the rollers of the DV series, for instance, gives the roller driver a full view of the drums all the time, enabling him to also control the water spray system. The cabin can additionally be shifted beyond the edge of the roller, giving the driver a full view of the drum edge. In the CompactLine rollers and single-drum compactors of the 3000 series, this feature has been put into practice by a specially designed front carriage. The machine’s wasp waist gives the driver a perfect view of the drum edge.

Ergonomics

Ergonomically optimized machines are a “must” when it comes to enabling focused, efficient working over long periods of time. Comfort for the roller driver is thus increased, and safety is improved, which results in both increased production and improved compaction results. Hamm rollers have earned themselves several awards for their ergonomically optimized operating design. All displays and switches are structured very clearly to allow intuitive operation. The main buttons and switches are located within easy reach and allow easy operation.

Edge pressing and cutting equipment

Edge pressing and cutting equipment is used for producing longitudinal joints, when paving asphalt layers without edging, or when paving “hot-against-cold”. It is recommended in such cases to use the edge pressing device for producing a slant of between 70° to 80° at the contact surfaces. The contact surface is thus increased, achieving a high-quality joint. Slanting and compacting the edges in peripheral areas effectively prevents water, dirt and roots from finding their way into the asphalt pavement.

Spreading chippings

High-quality chippings are frequently spread on top of the completed, still hot surface course to ensure that the road has excellent grip right from the start. Precision spreaders are capable of producing a highly uniform spreading pattern. Disc spreaders can also be used.