A scraper conveyor is a material transportation device utilizing a continuous, driven chain circuit equipped with regularly spaced cross members. The chain travels through an channel or trough which prevents the transported materials from falling off the conveyor while the cross members drag or “scrape” them forward to the discharge point. Scraper conveyors are typically used for coarse, heavy materials such as raw coal, iron ore, cast metal parts, and metal scrap. The design is ideal for slower transportation speeds over short distances, on moderate inclines, or even in submerged applications. This type of conveyor is typically more cost effective to install and maintain than a belt conveyor of similar capacity and length.