Lower Bavaria-based Karl Mossandl is active in the field of sand-gravel production and uses duty cycle cranes every day in the production of building materials.
The 655E crane was delivered by Sennebogen sales and service partner IBS Industrie- u. Baumaschinen Service, and replaces the previously used 650 HD.
Mossandl, which is based in Dingolfing near to Sennebogen's headquarters in Straubing, is using its 655E with a dragline bucket.
During the winter months, the machine is used here primarily for empty shovelling of the immersion basin to remove sand mud. The gravel is washed after extraction, and water and sand are retained after the gravel has been washed. The sand can then sink and the water can be used again for the washing process.
Sennebogen says the operator can move the duty cycle crane safely and manoeuvre the dragline bucket to exactly the right position with light movements, high precision and at the exact speed. The removed sand slurry is loaded into dump trucks and stored off-site. There the sand slurry is then dewatered and all that remains is sand, which can be processed and resold as building material.
The Sennebogen 655E HD is equipped with a Hendrix drag bucket with a capacity of 2.2m3. Mossandl's dragline has a 29.9m lattice boom, offering a wide range of options. The crane is fitted with 18 tonnes of ballast and with a dragline bucket weighing about 63 tonnes, covering a working range of over 30m.
Sennebogen says the 655E meets the European Union's Stage IV emission standards and adds: "The 655E HD is a very modern and robust duty cycle crane and with its 261 kW/350hp diesel engine it is particularly suitable for heavy dragline and grab work."