Lathe Chuck 4-Jaw Self-Centering for Proxxon PD 400 by Proxxon

The Lathe Chuck 4-Jaw Self-Centering for Proxxon PD 400 by Proxxon is a compact four-jaw self-centering chuck designed specifically for use with the Proxxon PD 400 bench lathe. It provides uniform radial clamping using four jaws that move simultaneously, simplifying setup for round and mildly irregular workpieces. The chuck is intended for small-scale turning tasks where secure gripping and repeatable alignment are required, and it complements hobby and light workshop machining operations on the Proxxon PD 400.

Advantages

This self-centering four-jaw design delivers consistent concentricity without the need to adjust each jaw individually, reducing setup time and improving repeatability. The compact form factor is matched to the Proxxon PD 400, keeping runout and imbalance low for small-diameter parts. Robust jaw contact ensures a secure grip on round stock and eccentric pieces while allowing relatively quick changes between workpieces.

Suitable for

• Turning and facing small round workpieces on the Proxxon PD 400
• Light hobby machining and model making
• Clamping mildly irregular or slightly off-center blanks
• Operations requiring quick, repeatable setup with limited space

Key specifications

• Four-jaw self-centering mechanism for simultaneous jaw movement
• Compact size adapted for small bench lathe use
• Designed for secure radial clamping of round and near-round parts
• Suitable for small-diameter workpieces commonly used in hobby and light workshop tasks

How to use

Mount the chuck on the spindle of the Proxxon PD 400 according to the lathe manufacturer’s mounting instructions, ensuring correct seating and tightening. Open the jaws with the supplied key or wrench, insert the workpiece, and tighten the chuck uniformly to bring all four jaws into firm, concentric contact with the workpiece. Check runout and alignment before cutting and make fine adjustments by repositioning the workpiece if necessary. Use appropriate cutting speeds and feeds for the material and tools you are using.

Usage recommendations

Regularly clean jaws and mounting surfaces to remove chips and debris, and apply light lubrication to moving parts where appropriate. Always use proper personal protective equipment and secure the lathe’s work area. Avoid over-tightening when clamping thin-walled or delicate parts; use support or soft-jaw adapters for fragile materials to prevent deformation.