Jaw set Bison-Bial solid external jaws 315 mm for chucks 32 series and 35 series (500;3200-315)

Solid external jaws Bison-Bial 315 mm are precision-machined, single-piece hardened jaws intended for external clamping on lathes and turning centers. Designed to fit 32-series and 35-series chucks, these jaws deliver a durable gripping surface for machining and grinding operations. The one-piece construction reduces deformation under load and provides consistent concentricity for repeatable holding of round and irregular workpieces.

Advantages

The hardened single-piece design offers high wear resistance and extended service life under heavy-duty use. Their dimensional accuracy and robust construction improve concentricity and repeatability during turning and grinding. Because they are solid external jaws, they resist bending and distortion better than segmented alternatives, ensuring stable clamping force and reliable positioning of the workpiece.

Suitable for

• External clamping of round workpieces on lathes
• Holding irregularly shaped parts during light to heavy machining
• Grinding operations that require stable, wear-resistant jaws
• Replacement or upgrade for 32-series and 35-series chucks

Key specifications

• Type: solid external jaw, single-piece construction
• Length: 315 mm
• Compatibility: 32-series and 35-series chucks
• Material treatment: hardened for wear resistance
• Application: external clamping for machining and grinding

How to use

Install the jaw into the designated jaw slot of a compatible 32-series or 35-series chuck, ensuring correct orientation and secure seating. Tighten the chuck according to lathe or turning center manufacturer recommendations and perform an initial test run at low speed to confirm concentricity and clamping stability. Use appropriate torque and avoid overtightening to prevent damage to the workpiece or jaw. Periodically inspect the gripping surface for wear and re-tighten mounting fasteners as required.

Usage recommendations

For best results, match jaw size and style to the workpiece geometry and machining operation. Clean mounting surfaces before installation and remove chips or coolant that may affect seating. Replace jaws that show significant wear, nicks, or loss of concentricity to maintain machining accuracy and safe clamping performance.