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2020 / 2021 Edition

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Ammann rollers for Cormac

Cormac (the contracting arm of Cornwall County Council) have recently taken delivery of a 9.5 tonnes Ammann AV95N roller. As well as carrying out general highway and roadwork for the county council, Cormac also carry out a wide variety of surfacing work for the private sector.

The company needed to replace one of their Ammann DTV903 machines and chose the AV95 because of its offset crab-steer feature which makes it manoeuvrable when working in places with a small, tight radius.

It is able to cope with any contract from major trunk roads to small estate roads and car parks. With an operating weight of 9.5 tonnes, the AV95N has a split drum width of 1,600mm and a linear load of 29.7kg/cm. Its 1,250mm maximum offset in crab-steering mode gives a maximum working width of 2,850mm.

Powered by a Deutz BF4M 1012 58kW diesel engine, the unit is capable of a top travel speed of 10km/h, and gradeability with and without vibration of 30% and 40% respectively. The AV95N also features amplitudes of 0.62mm and0.3mm, frequencies of 35Hz and 50Hz, a 52kN centrifugal force per drum (325N/cm per drum width) and twin water tanks, each with 450 litres capacity.

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