The gang-type lathe OD workholding system is used on CNC lathes to clamp workpieces by their outer diameter.
- Gang-type CNC lathes are compact machines, typically preferred for high-volume bar stock machining. These lathes use a fixed tool slide (gang slide) instead of a classic turret.
- The OD workholder (OD collet or chuck) clamps the workpiece from its outer surface.
- These types of workholders are generally:
- Collet type → Clamps the bar or part precisely by its OD; widely used in serial production.
- Mini hydraulic/pneumatic chucks → Small-sized, specially designed to fit the compact layout of gang-type lathes.
- Mechanical chuck (3-jaw small chuck) → Suitable for simple operations, though collets are more common in gang-type setups.
Advantages: - Fast workpiece clamping and unclamping
- High repeatability
- Suitable for serial production of small parts