Intermediate Drive Projects


Tarong Transport Alliance, Australia

Feasibility Study 2007- Not Built
Role- Designer
Client- Tarong Transport Alliance

The Tarong Transport Alliance selected Overland Conveyor Co to design a belt conveyance system for a 71 km long haul. This ground breaking 71 km system consisting of three flights of 30 km, 30 km and 11 km would include the 2 longest single flights in the world. They included intermediate drives and horizontal curves to fit within a narrow corridor between Tarong and the New Acland coal supply.


ALCOA Rockdale, TX, USA (Now Luminant Mining)

Commissioned 2005
Role- Designer
Client- ThyssenKrupp Robins

Commissioned in June 2005, this 19.3 km single flight conveyor was the longest conventional conveyor in the world. It also included one intermediate drive and 11 horizontal curves. In order to negotiate 11 horizontal curves in plan, power was distributed between the head, tail and half way point on the conveyor. An intermediate tripper drive will be one of the first of its kind on a surface application. Overland Conveyor Co provided the intermediate drive support as well as the control algorithms for starting and stopping.


Peabody Twentymile Coal, USA

Commissioned 1995
Role- Designer
Client- Continental Conveyor

One of the pioneer coal mines to use and help perfect the concept of intermediate drives in underground coal mining. The east mine district included difficult profiles that required both powering and regnerations intermediate drives.