The 034.017 bar feeder push collet for LNS - TRYTON bar feeders is a professional component intended for bar feeding systems installed on automatic lathes, CNC lathes, sliding headstock lathes and bar production machines. Its M8 thread and 16.5 mm external diameter make it suitable for pushing units that require a stable mechanical connection, correct grip on the material and regular feeding throughout the machining cycle.

The purpose of a bar feeder push collet is to create the contact point between the automatic bar feeder pushing device and the bar being machined. During the cycle, the component transfers the pushing force to the material and allows the bar to advance progressively towards the spindle, the machine collet or the lathe clamping system. In many applications it also contributes to managing the remaining bar end, guiding the material in the final stage and reducing the risk of loss of grip, impacts, vibration or irregular feeding.

This item is suitable for machine shops, turning departments, automated production, preventive maintenance and extraordinary maintenance of LNS - TRYTON bar feeders. It is a small component, but it performs a very important function in the process: if the collet is worn, not matched to the bar or not correctly coupled with the pushing system, transmission play, misalignment, feeding errors, marks on the material, remnant ejection problems and unexpected machine stoppages may occur.

Push collets can be supplied for round, hexagonal or square bars. For hexagonal and square profiles, grinding is carried out according to the corner dimension, in order to obtain functional contact with the real geometry of the material. This operation is important because the bar profile directly affects grip stability, feeding continuity and the ability of the collet to transmit pushing force without generating rotation, oscillation or unwanted play.

Correct selection must consider the bar feeder model, connection type, M8 thread, 16.5 mm external diameter and the section of the bar to be machined. Before installation, it is advisable to check that the collet fits correctly into the pushing unit seat, that the thread is clean and intact, that there are no burrs or deformation and that the grip on the material is suitable. Excessive clearance reduces feeding accuracy and may create impacts or irregular movement; an overly tight fit may increase friction, mark the bar or compromise cycle smoothness.

During adjustment and maintenance, operators should verify concentricity with the pushing axis, cleanliness of the guide tube, absence of chips in the working area, alignment between feeder and lathe and the behaviour of the bar during the first feeding strokes. Even small form errors, dimensional variations in the material, imperfectly regular profiles or inconsistent tolerances can affect the performance of the collet. For this reason, the component should be assessed together with the complete system, including bar feeder, pusher, guide tube, spindle, machine collet and machining parameters.

The push collet for LNS - TRYTON is intended for technicians, maintenance engineers, process engineers, machine builders, quality control departments and turning professionals who need to keep the automatic bar feeding system efficient. Correct replacement selection helps improve production regularity, reduce machine downtime, protect the material and optimise operating continuity on automatic lathes, CNC lathes and sliding headstock machines.