Rail Product Solutions, Inc. (RPS), based in Overland Park, KS, with its primary manufacturing located in Atchison, KS is a rail fastener manufacturer and a division of Chicago-based Amsted Rail. It has been serving the rail-fastening marketplace for more than 100 years offering a complete line of rail anchors, concrete tie fasteners and direct fixation fasteners. Amsted RPS serves both domestic a...Rail Product Solutions, Inc. (RPS), based in Overland Park, KS, with its primary manufacturing located in Atchison, KS is a rail fastener manufacturer and a division of Chicago-based Amsted Rail. It has been serving the rail-fastening marketplace for more than 100 years offering a complete line of rail anchors, concrete tie fasteners and direct fixation fasteners. Amsted RPS serves both domestic and international markets.