The control pin code 3511119 is a mechanical component designed for the central block movement system of Gildemeister GM35 and GM35AC multi-spindle automatic lathes. The component is installed inside the connecting rod code 3711115 and transmits motion to the lever that actuates the machine’s central block assembly.

The central block represents one of the most versatile working stations of multi-spindle automatic lathes. This hexagonal block allows the installation of different tooling and support devices used during machining operations. Typical applications include roller support holders for stabilizing the workpiece during turning operations, front tool holders for rough machining, rotating front milling units for front milling operations and special tools used for screwdriver slot cutting operations.

The control pin therefore functions as the connection element between the actuation linkage and the central block assembly, ensuring reliable motion transmission and precise positioning. The dimensional accuracy of the component and the quality of its mating surfaces help maintain kinematic stability and minimize mechanical transmission play within the system.

During machine operation the pin is subjected to cyclic loads generated by the movement of the central block control mechanism. For this reason the component must provide high mechanical strength, wear resistance and long-term dimensional stability in order to prevent variations in transmission clearance that could affect machining accuracy.

Maintaining the correct condition of this component contributes significantly to the stability and efficiency of the central block actuation system in Gildemeister GM35 and GM35AC multi-spindle automatic lathes.