Abstract: An integral one-piece extended guide track and various conveyor systems incorporating same are disclosed. The guide track includes upper and lower connected web sections, each of which includes full length horizontally extending passageways. The upper web section includes an upwardly extending open channel for slidably supporting the first run of a conveyor chain. The upper lower web section form therebetween a central guideway parallel to the passageways and the channel for supporting the return run of the conveyor chain. A number of mounting slots are provided on the upper and lower web sections. The conveyor systems include single and dual track floor mounted systems, and single track overhead conveyor system. The conveyor systems have turn-tables for changing the direction of travel of the articles supported on the conveyors.