Horizontal Curve Projects

Cortez Hills

Barrick Gold, Cortez Hills, USA

Commissioned 2009
Role- Designer
Client- ThyssenKrupp Robins

Overland Conveyor Co was selected to provide specialized design support for the development of unique and custom control algorithms for a 11.6 km overland. The system consists of several individual conveyors totaling over 14.5 km in length with the 11.6 km centerpiece curving horizontally down a large hill. Conveying capacity is set at 1000 tons per hour.

CADMAN

Heidelberg Cement, CADMAN, USA

Commissioned 2006
Role- Designer
Client- ThyssenKrupp Robins

This downhill conveyor was designed for Cadman’s new limestone quarry in Washington State. The conveyor is designed to carry 1000 tph down the hill and 400 tph back up the return side. It overcomes difficult terrain over its length of 2 km, including a vertical drop of 274 m with 14 vertical and 2 horizontal curves, and a maximum slope of 18 degrees. See Video

Alcoa

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.