The TD-035.230 feed collet is a technical component for Cucchi Pietro PB24 automatic bar feeders used on automatic lathes, CNC lathes and Swiss-type CNC lathes. Its function is to grip, guide and push the bar during the feeding cycle, keeping the material correctly aligned with the feed axis and supporting continuity in the turning process. This feed collet has an M14x1 LH connection and OD= 23 mm, and is designed to work consistently with the feeder push system and with the operating conditions typically found in serial mechanical production.

In an automatic bar feeder, the feed collet works as the connection element between the feed mechanism and the bar stock. During the cycle, the component must maintain a stable grip on the bar, guide the feed movement towards the spindle or guide bush and limit play, vibration and misalignment that may affect machining accuracy. A correctly selected feed collet helps improve positioning repeatability, feed regularity and production-cycle quality, especially on automatic lathes, CNC turning centres and Swiss-type machines where bar stability is essential for dimensional precision.

The application field includes turning, secondary operations, drilling, threading, parting-off and continuous production of mechanical parts from bar stock. The feed collet can be supplied for round, hexagonal or square bars; for non-round profiles, the profile is ground according to the across-corner dimension to ensure correct matching with the material and more stable transmission of the feed movement. This is important when machining profiled bars, because the grip must follow the real geometry of the material rather than only a generic nominal size.

From a technical point of view, the choice of the feed collet must consider the bar feeder model, connection type, outside diameter, bar geometry, workpiece length, feed speed, transmission play and contact conditions with the material. For this product, the main references are M14x1 LH connection and OD= 23 mm. Dimensional checking of both collet and bar is recommended before installation, especially when working with ground, drawn, rolled or profiled bars with different tolerances. Incorrect matching can cause irregular dragging, loss of grip, marks on the bar, noise, vibration or feed errors.

For correct use, it is advisable to check that the seat is clean, verify that the M14x1 LH thread is undamaged, install the collet without forcing it and make sure that the feeder movement is smooth throughout the full stroke. During preventive maintenance, wear, deformation, ovality, burrs, oil residues and chips should be inspected periodically, because these elements may alter the bar grip and reduce system precision. When changing bar format, the collet should be checked against the actual section and size of the material, especially for hexagonal and square bars ground according to the across-corner dimension.

The TD-035.230 feed collet is suitable for machine shops, CNC turning departments, production areas, toolrooms, industrial maintenance teams, manufacturers of mechanical components, process technicians and skilled operators using Cucchi Pietro PB24 automatic bar feeders. The component supports production continuity and helps reduce machine downtime caused by feeding problems, loss of centring or bar instability. Tadaah offers this item as a technical spare part for professionals looking for a solution consistent with the feeder, suitable for production environments where precision, reliability, geometry control and cycle stability are essential.