HAMM: powerful and versatile for earth work 8
Apr
'19

In 2019, HAMM is represented on the market with a powerful and versatile range of compaction technology for earth work. The manufacturer is highlighting its commitment with a separate exhibition area dedicated to earth work at Bauma 2019. There will be numerous machines and solutions on display for all markets, as well as a wide variety of applications. New additions include the C compactors for earth work and a new generation of dozer blades. HAMM is also displaying a compaction measurement solution for oscillation in VIO compactors – a world premiere.

The HAMM product range for earth work currently comprises 63 compactors, subdivided into the weight classes customary in the market of 5 t to 25 t, with working widths of between 1.37 m and 2.22 m. HAMM thus covers the classic areas of application in earth work. In addition, the German manufacturer’s range includes numerous specialised machines such as the VC compactor, and options such as a number of dozer blade variants and a vibration plate. HAMM supplies rollers to the various markets around the world in configurations that meet local demand and satisfy the respective emission guidelines.

New synergies for the construction industry

With its comprehensive product portfolio, HAMM also complements the John Deere & Company range perfectly. The merger between the Wirtgen Group – with HAMM as a compaction specialist – and John Deere & Company creates attractive synergies for the construction industry, especially regarding earth work. This is evident, for instance, in the compaction of soil and in soil stabilisation, where both graders and rollers are essential for creating a solid, even ground level or subbase.

Further added value results from collaboration in telematics. The Wirtgen Group and John Deere have many years of experience in this sector and are trendsetters in their market segments. In future, both companies will pool their respective expertise in this area, too.

Three machine series: compactors for every market

HAMM offers three different series of compactors: the smaller H CompactLine with models up to 7 t, the classics from the 3000 series, and the H series – with models from 10 t to 25 t. All HAMM compactors have 3-point articulation for even weight distribution and enormous driving stability. They also stand out for their ease of operation, excellent visibility, extremely high level of safety, enormous productivity, wealth of equipment variants and tried and tested options.

H CompactLine series: impressively compact

The compactors in the H CompactLine with weights between 5 t and 7 t (drum widths of 1.37 m or 1.68 m) feature an extremely compact design, making them ideal for small or confined construction sites. The H 7i is particularly worthy of mention: measuring approx. 4.4 m, it is the world’s shortest compactor in this weight class.

These compactors offer excellent ground clearance thanks to their traction drive using wheel motors, while the design of the front section enables a large slope angle. Added to this is the remarkable climbing ability of the compactors H 5i / H 7i of up to 60%. The compactors are exceptionally versatile owing to the numerous options. Customers can choose, for instance, between smooth and padfoot drums as well as two-part padfoot shells. A VIO drum, capable of compacting with either vibration or oscillation, is also available for the H 7i.

The 3000 series: the classic for earth work

The 3000 series is the classic among the compactors and remains in high demand around the world. These rollers are easy to operate and extremely versatile. They generate high compaction power and offer outstanding driving and manoeuvring characteristics thanks to their 3-point articulation. Special features of the models with the Hammtronic (HT) machine management system are their enormous climbing ability and low fuel consumption.

With this series, HAMM is aiming first and foremost at customers in the Middle East, Asia, Africa and South America. The list of options reflects the requirements of these markets in particular. They include a compaction meter (HCM), a protective roof, padfoot segments and a fuel prefilter. The range of tyre, lighting and comfort versions is extensive. Depending on the model, the engines of the compactors with operating weights of 10 t or more comply with the requirements of Tier 2 or Tier 3.

H series: for the big earth work jobs

The H series compactors cover a wide spectrum of earth work applications. The machines are available with weights from 11 t to 25 t, with smooth or padfoot drums. Thanks to the Easy Drive operating concept, all models are exceptionally easy to operate and comfortable. In addition, HAMM is the only manufacturer in the world to offer a VIO drum for compactors in this class. Accordingly, these machines can compact with oscillation or vibration as desired.

Another outstanding characteristic of the H series machines is their high linear load. Added to this is the large slope angle and enormous climbing ability that allow these compactors to work effectively even on slopes of up to 60%. Furthermore, there are numerous options for them, including padfoot segments, vibration plates and dozer blades.

C compactors: for tough jobs

The “C models” are some of the earth work innovations from HAMM at this year’s Bauma. They are fitted with a more powerful hydrostatic drive and provide up to 30% more torque, giving them even better traction and climbing ability than that of the standard models – even on inclines in excess of 60%. These models are equipped to deal with heavy earth work, landfill construction and the compaction of cohesive soils. But they are also economical: fuel consumption in the C models is almost identical to that in models without reinforced drives because all rollers have the same diesel engine. The high level of torque is also impressive when using the dozer blade.

Distribution and compaction: new dozer blades for compactors

Another HAMM innovation at Bauma 2019 is the dozer blades for compactors. They are available in two variants for models in the H series, depending on the drum width. The geometry of the new dozer blades allows more material to be moved and distributed than before, while special skid shoes prevent them from digging into the ground. In addition, the patented high-visibility cross member provides an unobstructed view of the area in front of the dozer blade. Very important for the quality of the work is the fact that the dozer blade can be controlled quickly and extremely sensitively thanks to the proportional valve used. The dozer blade is particularly suited to landfill work.

World premiere: HAMM Compaction Meter (HCM), VIO – a compaction meter for vibration and oscillation

With the new compaction meter, HAMM compactors will be able to measure compaction even in oscillation mode in future. This is a world premiere presented by HAMM. The HAMM Compaction Meter VIO, makes it possible to document passes in a traceable way even for applications involving oscillation and comprehensive compaction control. The system is already available for the compactors H 7i VIO (H CompactLine) and H 13i VIO (H series).

VC compactors: rock crushing and compacting

HAMM’s range includes a separate series for especially challenging jobs: the VC compactors. They crush and compact rock in a single operation. The 25 t compactors, based on the models H 25i and 3625 HT, are equipped as heavy-duty machines.

Their drum is fitted with 150 tool holders. They can hold cutting tools of the type used in mining. The vibrating drum creates extremely large point loads on the cutting tools to crush the rock while the ground is being compacted. To hold the cutting tools, the VC compactors use a tool changing system which can be fitted with special padfoot inserts in addition to the cutting tools. This enables the machines to compact even particularly abrasive, cohesive soils very efficiently.

HCQ Navigator: everything under control

Over ten years ago, HAMM introduced the HCQ Navigator to satisfy the most demanding requirements in asphalt construction and earth work, and has continued to develop it ever since. The modular system for efficient compaction monitoring and documentation can be used in HAMM earth work and asphalt rollers. During compaction, it continuously records various data from the compaction process. At the same time, a DGNSS receiver determines the roller’s position. The HCQ Navigator combines the process and positional information and depicts it graphically in the driver’s cab. A number of rollers may also be networked via Wi-Fi.

Roller drivers are able to see the progress of compaction in real time in the roller. This information enables them to achieve extremely homogeneous compaction – even on large or irregularly shaped areas. A loss of quality owing to over- or undercompaction is now a thing of the past.

Compaction data worldwide in real time with WITOS HCQ

HAMM goes one step further with WITOS HCQ, a module for the online connection of the HCQ Navigator: data is transmitted wirelessly from the roller to the WITOS portal of the WIRTGEN GROUP on a server in Germany. From there, authorised persons such as construction managers can view and download the data. This provides information about the compaction process in real time via Wi-Fi in a secure domain, so that construction managers can follow construction progress even on remote construction sites. This in turn brings savings in travel time and costs and enables quality improvements to be achieved through timely interventions.