The HAMM product range: the right solution for every task

The old-established roller manufacturer HAMM is offering an exhaustive range of modern, future-proof machines for road building and earthwork in 2017. The programme currently consists of 88 tandem and combi rollers, 18 pneumatic tyre rollers and 63 compactors, clearly subdivided in the weight classes customary in the market. HAMM thus covers the classic areas of application in asphalt construction and earthwork with a programme that also includes numerous specialised items such as the VC compactor and options such as dozer blades and chip spreaders.

At its Tirschenreuth plant, HAMM currently produces 169 different roller types. They are supplemented by numerous other models, made in local production facilities for other markets.

At its Tirschenreuth plant, HAMM currently produces 169 different roller types. They are supplemented by numerous other models, made in local production facilities for other markets.

1. Tandem rollers

In the tandem roller segment, HAMM carries machines with operating weights from 1.5 t to 15 t and drum widths from 0.80 m to 2.14 m. All 88 tandem and combi rollers are finely graduated according to operating weight. They stand out for their ease of operation, high productivity, extensive equipment configurations and useful options.

1.1 HD CompactLine: articulated compact rollers from 1.5 t to 4.5 t

With a total of 18 tandem and 9 combi rollers in the HD CompactLine, HAMM features the widest product diversity in the compact segment. The drum widths of these articulated rollers range from 0.80 m to 1.38 m. These agile and manoeuvrable compaction machines are user-friendly all-rounders for road construction and landscaping. Among their most important features are perfect visibility thanks to a “wasp-waist” front section, low vehicle height and good transport and handling characteristics. Modern Kubota engines ensure a quiet, yet powerful drive.

The drum diameters of the compact rollers are exceptionally large. This actively helps prevent the formation of fissures and bulges and promotes high compaction quality. In addition, the machines generate very large centrifugal forces and have a high static linear load. As a result, the HD CompactLine rollers deliver top-class compaction performance. 8 models in this series are available with oscillation technology. This gentle, low-vibration and intelligent compaction mode can therefore also be used in confined construction sites such as in city centres.

HAMM also offers numerous options for this series. They include chip spreaders for the models from 2.5 t as well as a ROPS cab for the largest models in the series, the HD 13 and HD 14. In addition, various models can be equipped with the HAMM Compaction Meter (HCM) for measuring the progress of compaction and the HAMM Temperature Meter (HTM) for measuring asphalt temperature.

1.2 HD+ series: all-rounders for high-quality compaction

The multi-award-winning articulated tandem rollers in the HD+ series are available in the weight classes from 7 t to 14 t. They are ideally suited for the compaction of roads and other surfaces of all sizes. HAMM offers the machines in several versions: as “i-models” with engines meeting Tier 4 exhaust emission standards and as models with engines meeting Tier 3 exhaust emission standards. In both variants, they are available as double vibration rollers, as rollers with an oscillation and a vibrating drum, and as combi rollers.

With 88 tandem and combi rollers, HAMM is the manufacturer with the largest product range in this segment in the world. The picture shows (from left to right): DV+ 90 VO, HD+ 110 VO, HD CompactLine HD 8 VV

With 88 tandem and combi rollers, HAMM is the manufacturer with the largest product range in this segment in the world. The picture shows (from left to right): DV+ 90 VO, HD+ 110 VO, HD CompactLine HD 8 VV

The state-of-the-art tandem rollers in the HD+ series offer drivers an ergonomically optimised workspace with a perfect view from a panoramic cab. All models in this series are extremely easy to operate – especially those with Tier 4 engines because they come with all the benefits of the Easy Drive operating concept. When compacting, the HD+ scores highly thanks to its exceptionally even weight distribution. Perfectly smooth surfaces are created in a short time, especially in curves and on roundabouts. When reversing, the automatic transmission makes for gentle acceleration and braking; smooth asphalt layers without any bumps or hollows are the result. Among other things, the intelligent water sprinkling system on the HD+ features speed control. In addition, large water tanks ensure long, uninterrupted periods of work. The models with Tier 4 engines are also equipped ex-factory with the “Hammtronic” machine management system. It delivers optimum performance while minimising fuel consumption and ensures even, high-quality compaction by controlling the traction and vibration drives.

HAMM has also become the first manufacturer to develop a novel hybrid drive, currently employed in the HD+ 90i PH. It combines an internal combustion engine suitable for series production with a hydraulic system. As a result, the 9 t roller is able to operate with a 55.4 kW engine instead of an 85 kW power unit. The compaction power nevertheless remains unchanged. The benefits for the user are manifold, for example: no AdBlue, less maintenance, quieter operation and significant fuel savings.

1.3 DV+ series: pivot-steered tandem rollers for ultimate precision

A highlight of the pivot-steered tandem rollers in the DV+ series is the “all-round view” concept that provides an unobstructed view of the construction site and the drums. Important elements are the spacious panoramic cab, the partially glazed cab floor and a cleverly conceived frame. All models in this series also come with the benefits of the Easy Drive operating concept as they are very easy to operate. Depending on the specification, the driver’s seat may be rotated by up to 350°, allowing the driver to sit in the direction of travel at all times.

When it comes to machine technology, the DV+ series is also impressive: the combination of a powerful engine, extremely wide working widths (max. 3.05 m) plus the intelligent, precisely adjustable water sprinkling system produces excellent compaction results. In addition, there is highly flexible steering with 4 steering modes and very large track offset (max. 1.37 m). The fuel tank is especially easily accessible from below and can be filled by pressure refuelling. Moreover, the large diesel and water tanks ensure long periods of work and high productivity.

When it comes to compaction technology, the customer has the choice of double vibration rollers, machines with a vibrating drum and an oscillation drum, and combi rollers. All vibratory rollers are fitted with split drums as standard, enabling them to satisfy the most demanding requirements.

2. Compactors for earthwork

HAMM has a total of 63 compactors for earthwork ranging from 5 t to 25 t, with working widths from 1.37 m to 2.22 m. 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 useful options.

The HAMM product portfolio currently comprises 63 compactors with operating weights between 5 t and 25 t.

The HAMM product portfolio currently comprises 63 compactors with operating weights between 5 t and 25 t.

2.1 H CompactLine series: impressively compact

The compactors in the H CompactLine with weights between 5 t and 7 t (drum widths 1.37 m or 1.68 m) feature an extremely compact design, making them ideal for small or confined construction sites. With a length of around 4.40 m, the H 7i is the shortest compactor in the world in this weight class.

In uneven terrain, the 3-point articulation ensures unrivalled driving stability and good directional stability. The traction drive by means of wheel motors brings the desired ground clearance, while the design of the front section enables a large slope angle. Added to this is the remarkable climbing ability of the H 5i / H 7i compactors of 60% and more.

The compactors are exceptionally versatile, thanks not least to the numerous options. Customers can choose 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.

2.2 H series: for the big earthwork jobs

The H series compactors cover a huge spectrum of earthwork 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 offer many convenience features. In addition, HAMM is the only manufacturer in the world to offer a VIO drum for these compactors. Accordingly, these machines can compact with oscillation or vibration as desired.

All H series compactors have the 3-point articulation developed by HAMM. It gives them superior driving stability and manoeuvrability even in difficult terrain. Another outstanding characteristic of the H series compactors 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 in excess of 60%. The HAMM programme also includes models with heavy-duty drive to meet special requirements regarding climbing ability. This is complemented by numerous options such as padfoot segments, vibration plates and dozer blades.

2.3 VC compactors: rock crushing and compacting

With the VC compactors, HAMM has developed a dedicated series for especially challenging applications. They crush and compact rock in one operation. The 25 t compactors, based on the H 25i and 3625 HT models, are equipped as heavy-duty machines.

Their drum is fitted with 150 tool holders. They can hold cutting tools of the type also used in mining. With the cutting tools, the vibrating drum creates extremely high point loads that crush the rock while the ground is being compacted. To hold the cutting tools, the VC compactors use a quick-change tool holder system which can also be fitted with special padfoot inserts. This enables the machines to compact particularly abrasive, cohesive soils very efficiently.

3. GRW: pneumatic tyre rollers for every market

HAMM also stands out from the crowd in the pneumatic tyre roller segment as it has done since the 1960s, when it was the first ever manufacturer to launch a pneumatic tyre roller. Today, with 18 different models, HAMM ranks among the manufacturers with the largest ranges of pneumatic tyre rollers in the world.

The GRW 180 / 280 from HAMM is the most advanced pneumatic tyre roller in the world. Its unique, asymmetric frame provides an unobstructed view of the wheel sidewalls. The intelligent ballasting concept enables highly flexible adjustment of operating weight.

The GRW 180 / 280 from HAMM is the most advanced pneumatic tyre roller in the world. Its unique, asymmetric frame provides an unobstructed view of the wheel sidewalls. The intelligent ballasting concept enables highly flexible adjustment of operating weight.

3.1 GRW 180 / 280: asymmetric frame provides outstanding overview

The pneumatic tyre rollers in the GRW 180 / 280 series can easily be identified from far away on account of their innovative design: their asymmetric frame makes for an outstanding all-round view and provides an unobstructed view of the outer wheels. Added to this is a sight channel, through which the driver can see the running surfaces of the wheels from the cab or platform.

An intelligent ballasting concept facilitates rapid adjustment of machine weight with even distribution of weight over both axles. For this purpose, HAMM supplies prefabricated ballast bodies in various materials, enabling each roller to be precisely equipped to suit the asphalt type, layer thickness and application.

An ingenious wheel suspension system with 2 swing arms positioned between the front wheel pairs takes care of levelling on uneven terrain and, in turn, even distribution of machine weight, irrespective of the ground characteristics. This results in very smooth surfaces thanks to the uniform surface pressure of the pneumatic tyres. Aided by an electronic control system, the hydrostatic drive facilitates precise speed setting as well as gentle, even acceleration and braking. The powerful braking system swiftly brings even the heaviest rollers in this series to a safe halt.