The Armstrong Coal Company is a successful company in the field of coal mining and is on a constant expansion course. In the latest project, the Equality Mine on the Green River (Kentucky), a SENNEBOGEN 880 with electrohydraulic drive system is used to unload the coal from the ships.
The mined coal is transported to the unloading station by ship. With the SENNEBOGEN 880, this dock is home to one of the largest hydraulic material handling machines in America. The 160 t machine unloads around 1,500 t coal an hour into a funnel with a 10.7 m³ clamshell grab, emptying the ship in less than 2 ½ hours. The coal is then transported on via a conveyor belt. For a machine of this size, the 880 is extremely quiet, environmentally friendly and economical thanks to the electric motor. Numerous benefits, such as the removal of fuelling time, increased service life of the hydraulic components and significant reductions in operating costs speak in favour of this economically and ecologically-sound solution. The drivers are impressed by the smooth running characteristics and intuitive operation of the 880. The elevating cab is particularly well received in this field of use.
Statement:
"We chose this 880 because we were impressed by the entire concept, technical data and the option of the electric motor." Kenny Allen, Vice President of Operations at Armstrong Coal.
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