SERCO machining units can be attached to the outer surfaces of parts (flanges valves, etc.) with the FC 1150 chain clamping device. This means that sealing and dowel pin bearing surfaces can be entirely machined. Thanks to its simple functional design, the chain can be set up by a singleoperator, in any position, in just a few minutes. The FC 1150 chain clamping device is designed for attaching the SERCO TU1100 machining unit to the outside rim of the part to be machined.