A new
A family-owned enterprise, A2C has been working in the field of sand and gravel extraction and further processing for over 50 years. Around 1.2 million tonnes are extracted from gravel pits in the region of Île-de-France and supplied to concrete and prefabricated part plants. The material for this is classically extracted by the 55tonne duty cycle crawler crane using a dragline bucket. With an attached 1.9m3 dragline bucket, the driver only needs 40 seconds to retrieve the gravel from a depth of up to 10m.
The Sennebogen 655 HD’s sturdy mechanical components are said to be particularly wellsuited to dynamic tasks. They include extremely wide, robust sheaves which reliably guide ropes and can withstand huge loads. Then there is a second slewing gear, which comes into its own when the 655 HD is used with a dragline bucket: as well as providing extra torque it also saves huge amounts of time when emptying the bucket.
And the newly-designed fairlead keeps lateral movement in the luffing rope to a minimum thanks to a pulley rope guide in the lower boom section. The 655 HD is equipped with a 261kW strong diesel engine that reliably drives the two 16tonne freefall winches. An extremely robust slewing ring and two strong slewing drives combined with the 24.3m long lattice boom make the machine an optimum partner for extraction.
