Roller manufacturer Hamm is expanding its HC series with the 13-tonne HC 130i C VA compactor which, in conjunction with Smart Compact, enables automatic compaction to a target value.
The new model joins the 20- and 25-tonne HC 200i C VA and HC 250i C VA models that have already been unveiled and sets new standards for compaction in earthworks.
The HC 130i C VA compactor is equipped with the new variable amplitude (VA) drum which enables automatic compaction depending on the ground conditions and machine capacity.
“This technology not only ensures homogeneous compaction but also increases cost-effectiveness by reducing the number of double passes and lowering diesel consumption. The machine meets exhaust emission standard EU Stage V and EPA Tier 4f,” explains a spokesman for Hamm.
In day-to-day work, drivers can choose between an automatic and a manual mode. In automatic mode, the amplitude is regulated by the machine control system. In manual mode, five fixed amplitudes are available. Before compaction, the target compaction value in MN/sq m can be specified, based on typical load-bearing capacity values.
HC 130i C VA ... a 13-tonne model.
“The basis for the automatic regulation of the compaction forces is the Smart Compaction Value (SCV), which is also now determined by Hamm and is continuously and precisely recorded independently of influencing factors such as driving speed, frequency or direction of travel,” he points out.
The new VA compactors offer numerous advantages for operators and construction companies alike. Automatic adjustment of the amplitudes not only ensures homogeneous compaction but also effectively prevents over-compaction and particle crushing at the same time. These features make the new VA compactors an attractive choice, even for less experienced operators, the spokesman adds.
“In addition, the cost-effectiveness of construction projects is improved by the reduced number of double passes, which leads to lower diesel consumption and less mechanical stress on the machines. And making fewer double passes also means a reduction in CO2 emissions. In addition, the machine control system reliably prevents jump operation, contributing to a longer service life of the machines. The direct adjustment of the amplitude makes the VA technology an energy-efficient system overall,” he states.
With automated compaction via Smart Compact and a centrifugal force of 320 kN, the new compactors with VA drum achieve exceptionally efficient compaction.
The HD 10 G VV and HD 12 G VV ... the latest units in Hamm’s range of compact tandem rollers.
Meanwhile, Hamm has expanded its range of compact tandem rollers with the 2.5- to 2.7-tonne models of HD 10 G VV and HD 12 G VV, which are described as being ideal for the rental sector. Both models fulfil the requirements of exhaust emission standard EU Stage V and can be used in the construction of roads and pathways, as well as in gardening and landscaping. On cramped, inner-city construction sites in particular, the compact tandem rollers come into their own, the company says.
“The new tandem rollers of the HD CompactLine are characterised by their compact proportions, excellent handling and their compaction force,” the spokesman says. “The three-point articulation delivers exceptional handling, as well as quality and safety, by ensuring high driving stability and even weight distribution on both axles. In asphalt construction, this results in level surfaces without undulation formation, and a high level of safety against overturning when cornering. The large drum diameter is also instrumental in ensuring top-quality compaction, as it effectively prevents the uneven distribution of the material.”
Both models also have the benefit of uncomplicated operation, which means drivers – irrespective of their experience level – can feel confident handling the machine without a lengthy induction, he adds.
“Plus, the ergonomically optimised driver’s cabs provide excellent visibility and feature a driver’s seat that is easily adjusted to the size and weight of the operator. The models are also easy to service and maintain, with all maintenance points being readily accessible at all times, especially around the 18.2 kW Yanmar engine,” he explains.
When it comes to transportability, Hamm sticks with the tried-and-tested benefits of the HD CompactLine series and offers multiple tie-down points and a central suspension point for fast and hassle-free loading.
Various configuration options are available on the new models, including, for instance, powerful LED work lighting, an anti-freeze filling system, a back-up alarm and even the option of connecting to the John Deere Operations Center. In addition, the machine can also be fitted with an automatic engine-off function to reduce both diesel consumption and emissions.