Röhm HVL Pro live centres with extended centre point are precision components designed for counter-clamping and axial support of the workpiece during turning and grinding operations. The main feature of this series is the extended centre point, developed to improve workpiece accessibility when the working area between the centre point and the workpiece is restricted, when the part geometry includes shoulders, grooves or close profiles, or when the centre point must reach the workpiece centre without interfering with tools, chucks, fixtures or nearby surfaces.

The HVL Pro version is particularly suitable for machining operations where a standard live centre would not provide enough working space or where the position of the centre requires greater point projection. The extended point enlarges the usable working area and improves access to the centring point while keeping the workpiece stable during rotation. This is important on lathes, grinding machines, CNC lathes, automatic lathes and finishing applications where support stability directly affects accuracy, surface quality and dimensional repeatability.

The hardened and ground body ensures wear resistance, mounting stability and accurate fitting with the machine. Hardening increases service life even under continuous operating conditions, while grinding contributes to the geometric quality of the live centre and to smooth rotation. The 60° tip angle is suitable for most centring and support applications on shafts, pins, bushes, cylindrical components, metal parts and turned components.

The internal three-bearing system allows the live centre to operate with high stability and to withstand axial and radial loads during rotation. This configuration is essential to maintain smooth operation, reduce vibration, limit deflection and provide reliable support even when the extended point works in more demanding accessibility conditions than a standard live centre. Lifetime lubrication reduces the need for periodic maintenance and makes the series suitable for production departments with repetitive cycles, continuous machining and long-term reliability requirements.

The maximum concentricity deviation is 0.005 mm for the HVL Pro version and 0.003 mm for the HVLP Pro version, intended for applications requiring even higher precision. This parameter is essential in machining operations where the workpiece axis must remain stable and controlled, reducing runout errors, ovality, form defects and dimensional variations. In grinding and finishing operations, low concentricity deviation helps improve surface quality and geometric control of the workpiece.

The HVL Pro live centre is suitable for machining shafts with shoulders, pins, bushes, cylindrical parts, automotive components, transmission elements, turned parts and mechanical workpieces with geometries that make access to the centre difficult. In turning, it supports long, slender or hard-to-reach parts; in grinding, it maintains stable support even when the tool or grinding wheel requires greater freedom of movement near the working area.

For technicians, maintenance operators and workshop specialists, the correct choice of live centre must consider machine size, expected load, rotational speed, workpiece geometry, tool clearance, available space around the centre and required precision level. Correct selection improves process stability, reduces vibration and rejects, preserves the accuracy of the machine-fixture-workpiece system and increases machining reliability.

Tadaah offers Röhm HVL Pro live centres with extended point as a technical solution for professionals requiring better workpiece accessibility without compromising precision, rigidity and durability. The combination of extended point, hardened and ground body, 60° tip angle, three-bearing system, lifetime lubrication and high concentricity makes this series suitable for industrial machining where working clearance, support stability and geometric control are essential requirements.