The 311 compactor and HD 99 come with 3-point articulation.

P RAMESH ,
Managing Director & CEO,
Wirtgen India

The 3-point articulation ensures even weight distribution and exceptional directional stability, enormous stability in curves as well as great resistance to tipping.

Brief us on the range of soil/asphalt compactors on offer from your stable?
The Wirtgen Group Hamm compactors come with more than 125 years of experience in the development and manufacture of roller and compactors for soil and asphalt compaction. Hamm, the German manufacturer leading the field in compaction technology, is a member of the internationally successful Wirtgen Group and a global leader in the market of road rollers. In India we offer the Hamm 311 soil compactor, HD 99 asphalt compactor, GRW 15 rubber wheeled roller ,3520 padfoot compactor and also the mini tandem roller HD 12VV.

Could you brief us about HD 99 tandem roller?
Based on the successful HD series from Hamm, the HD 99 tandem roller has been developed for the premium segment in India. The articulated double vibration roller has an operating
weight of 9T and is a powerful all-rounder for road construction. With a drum width of 1.68m the roller is ideal for urban projects, as well as compaction on motorways, airports and other large surfaces.
Drivers enjoy outstanding visibility of the construction site from the operator’s platform of the HD 99. The seat can be turned 45° in both directions, and the open design of the frame provides a clear view of the drums, sprinkler system and drum edges. The roof comes as standard and protects drivers from sun and rain. Another notable aspect is the operation of the roller: it is self-explanatory, exceptionally straightforward and immediately comprehensible, without requiring any language skills. The powerful lighting system completes the high-quality overall picture.

The HD 99 is powered by a robust, water-cooled 4-cylinder engine in accordance with CEV BS III, with an optional diesel pre-filter. The engine can be operated safely even at high outside temperatures thanks to efficient oil and water cooling. Throughout, it is fuel-efficient and low-noise. Moreover, with high-capacity tanks for fuel and water, the HD 99 boasts particularly high productivity. This keeps refuelling stops to a minimum.

What makes Hamm 311 compactor highly successful in India?
With an operating weight of 11T and a 2.14m wide vibration drum, the 311 compactor brings high compaction force and a large static linear load of up to 30 kg/cm to the construction site. This enables the machine to perform a wide range of tasks with ease. It goes without saying that the compactor complies with Indian laws and regulations in every detail, from the engine and the lighting system all the way to the specific dimensions.

The environmentally friendly engine is in accordance with CBV BS III and is remarkably quiet and economical. For maintenance and service tasks, the engine compartment is easily accessible under an attractively designed engine hood made of GRP – a major advantage in comparison to frequently heavy engine hoods. At the same time, the relevant maintenance points for regular check-ups are all within easy reach.
To take account of the often extremely high temperatures in India, the engine of the compactor has been specially designed to facilitate operation at up to 55°C. Here, the air is conducted in such a way as to prevent warm exhaust air from heating up the operator’s platform.

The vibration compactor is available in three versions: the standard 311 version with a powerful rear-axle drive, the 311D version with an additionally powered drum, and the 311P version with a padfoot drum. In the version with a powered drum, the compactor can easily climb slopes of up to 53%.
Like the tandem roller, the compactor is exceptionally easy to operate. At all times, the modern display informs the driver about the status and condition of the machine. From the uncluttered platform, which is equipped with a protective roof as standard, the driver always has a clear view of the construction site and all important points of the compactor.

Could you detail on 3-point articulation used in tandem rollers and compactors?
Like the 311 compactor, which is manufactured in Pune, the HD 99 comes with 3-point articulation. In both machines, this ensures even weight distribution and exceptional directional stability, enormous stability in curves as well as great resistance to tipping. All of these factors have a positive influence on compaction results. The HD 99, for instance, produces very smooth asphalt surfaces without deformation. In earthworks, the 3-point articulation enables the 311 compactor to achieve excellent manoeuvring and compacting even in rough terrain.

What are the options available?
Naturally, in a market as large as India, the range of customer specifications is broad and diverse. That is why Hamm offers numerous field-tested extras for its 311 compactor and HD 99 tandem roller, allowing everyone to equip the machines to suit their individual needs. Options include the edge pressing and cutting equipment for the tandem roller, or the working lights for the compactor. A number of measuring systems are available as well, such as the Hamm Compaction Meter, which can be used on both machines to monitor compaction quality even while the work is being carried out. An additional option for the tandem rollers is the Hamm Temperature Meter. Via an infrared sensor, it measures the asphalt temperature in front of the roller and displays it on the dashboard.

Do you expect any adverse impact on the CE industry due to GST roll out?
GST will further help industry with the same rates across the nation. Removal of entry tax, ocroi will also be helpful to industry not only from cost perspective but also from ease of doing business.
The provision of input tax credit in the upcoming GST tax regime will be beneficial for the construction and infrastructure sector and so for Wirtgen Group. Only the GST rate of 28% for earthmoving equipments including compaction is at the highest level. It is not a perfect GST, but I am sure it will evolve over a period of time.

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