Heidelberg Cement, Cadman, USA

This downhill conveyor was designed for Cadman's new limestone quarry in Washington state. The conveyor handles material in both directions and 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.

Contractor: Thyssenkrupp