Rullitech apron feeders are custom designed for each application. They are of heavy duty construction suited for rugged conditions encountered in the mining and quarrying industries. They come with large diameter headshaft and tailshaft. Head and tail shaft roller bearings are sealed to prevent dust intrusion. The chains are crawler tractor type and are closely spaced to withstand shock loading of large lumps from the hopper. The steel flights are ribbed and overlapping and made of Manganese steel.