The Thompson PR direct drive series is designed to friction weld piston rods and cylinders. These machines are used by many top OEMs and Tier 1 companies in the yellow goods industry as friction welding is a repeatable, robust and accurate process. The PR series is very versatile, meaning pre-chromed piston rods, eyes, clevises, hydraulic cylinder caps and flanges can be joined on a single machine. A range of workholding solutions is offered which enable either eyes or clevises to be joined to pre-chromed rods as well as caps and flanges to cylinders. Removable pins in the two jaw chuck mean faster part changeovers and tooling nests can be used to accommodate clevises. Orientation is available to align features on rotated and clamped components such as ports.