Soil and Asphalt Compactors

One Ammann Roller Meets Many Jobsite Needs

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Project Demands Deep Compaction and Manoeuvrability

LANGENTHAL, Switzerland – A jobsite at the supermarket in Niederkassel, Germany, was full of contradictions.

The task was paving and compaction of the market’s parking lot. Portions of the project were in wide open spaces where productivity was needed.

Yet work was required near the market’s entrance, close to obstacles. That meant the roller needed to offer the versatility to be productive in open spaces yet manoeuvrable in tight spaces.

The base layer of 12 cm necessitated deep compaction output – all while negotiating the close spaces. The base layer consisted of warm mix (AC32 TS), so the compaction window was tighter as well.

The Ammann ARP 75 Pivot-Steer Tandem Roller met all the challenges.

The machine has an operating weight of 7375 kg, the first step toward delivering the necessary force.

The roller also has the output needed. Standard is a two-stage vibratory system with a multiple range of frequencies that helps operators precisely adjust compaction output.

It offers two frequencies (38-48 Hz and 45-55 Hz), two amplitude choices (0,68 mm and 0,39 mm) and two centrifugal options (58-92 kN and 47-70 kN).

These settings ensured the roller brought the output necessary to reach the 12 cm depth, yet also could be adjusted when working close to the building.

The Ammann ARP 75 has pivot steering with split drums, enabling precision and reducing shear forces. The roller also utilises advanced steer-by-wire machine control, which is extremely responsive.

Another handling feature is machine fingertip steering (FTS). FTS replaces the traditional steering wheel and allows operators to keep both hands on the armrests for improved comfort. FTS also offers advanced palm support that prevents fatigue and injuries from repetitive motions.

An advanced drive lever with intelligent functions ensured the smooth starts and stops that were essential when paving the market’s parking lot.
 
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