The global site of the UK's leading magazine for automation, motion engineering and power transmission
14 August, 2020

Product and Supplier Search


Dragline loses its gears

01 June, 2004

Dragline loses its gears

The world`s first gearless drive system for dragline excavators is being installed at a mine in Inner Mongolia, China. The system, developed jointly by Siemens and a US dragline specialist, Bucyrus International, is expected to boost productivity and cut operating costs.

Until now, draglines have relied on geared motors. The 9.7MW gearless three-phase drive (above) being installed at the Zhungeer mine will be about 20% more efficient, resulting in significant energy savings. It is also expected to be more reliable, with longer service intervals, thus increasing the dragline`s availability.

The technology can be retrofitted to existing dragline excavators.

  • To view a digital copy of the latest issue of Drives & Controls, click here.

    To visit the digital library of past issues, click here

    To subscribe to the magazine, click here



Birmingham 2020The next Drives & Controls Exhibition and Conference will take place in Birmingham, UK, from 25-27 January, 2021. For more information on the event, visit the Show Web site


"Do you think that robots create or destroy jobs?"



Most Read Articles