The 036.100 feed collet for CUCCHI bar loader is a technical component designed for bar feeding on automatic lathes, CNC turning machines and sliding headstock lathes. It is manufactured for an M6x0.75 thread and a 10 mm outside diameter, a configuration suitable for compact pushing systems where gripping precision and consistent feeding are essential for a stable production cycle. Its main function is to hold the bar during the pushing phase, guide it towards the machining area and ensure a regular transfer of material between the bar loader and the machine spindle.

In bar turning, a correctly selected feed collet reduces transmission play, vibration, misalignment and possible positioning errors that may affect machining repeatability. The 10 mm outside diameter and M6x0.75 thread must be carefully checked against the bar loader model, pushing unit and bar size. Before installation, it is advisable to inspect the thread condition, clean the seat, remove burrs, check the smoothness of the feeding system and confirm the correct match between the bar diameter and the internal diameter of the collet. Incorrect gripping may cause slipping, marks on the material, abnormal noise or unstable feeding.

This component is intended for production companies, turning departments, mechanical workshops, machine builders, maintenance technicians and professionals working with automatic bar feeding systems. Typical applications include precision turned parts, small metal components, hydraulic fittings, automotive parts, pneumatic components, connectors, medical parts, electronics and serial production. In preventive maintenance, scheduled replacement of the feed collet helps avoid machine downtime, irregular feeding and loss of accuracy during loading. In corrective maintenance, it is useful to check for wear, loss of elastic recovery, ovalisation, damage to the gripping sectors or excessive play in the threaded connection.

Feed collets can be supplied for round, hexagonal or square bars. For hexagonal and square profiles, grinding is carried out according to the corner dimension, ensuring a proper fit with the actual geometry of the bar. This is important when the material does not have a round section, because the gripping action must distribute contact correctly without creating uneven clamping points. For the best operating accuracy, the bar should be measured, dimensional variations in the batch should be checked, and the straightness, surface quality and alignment between bar loader, guide channel and spindle axis should be evaluated.

For correct use, the collet should be installed without forcing the thread, tightened according to the bar loader manufacturer’s instructions and checked to ensure that the bar slides without jamming. After the first start-up, it is useful to observe feeding at low speed, check for oscillations and verify that no form, geometry or positioning errors occur on the first machined parts. The feed collet is therefore a small but essential element for process quality, connecting the bar loader mechanics to bar stability and contributing to a regular turning cycle.