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High Precision Punch Former 3-Jaw Chuck

PUNCH FORMER

This high-precision punch former is an essential fixture for surface grinders, used for grinding punches, pins, small shafts and mold pins to achieve precise roundness and concentricity. It comes complete with a 3-jaw self-centering chuck, extra jaws and a turning wrench for full out-of-box use.

Key Performance & Material Advantages

1. Premium Alloy Steel Body

Main frame and chuck are made of quenched alloy steel with precision grinding, featuring high hardness, anti-wear and stable long-term accuracy.

2. 3-Jaw Self-Centering Chuck

Uniform clamping force holds round workpieces firmly; compatible with various small-diameter mold pins and punch blanks.

3. Ultra-High Rotational Precision

Tight tolerance bearing assembly ensures low runout, delivering excellent circularity after grinding for precision mold parts.

4. 360° Adjustable Rotation & Locking Knob

Easy angle adjustment and secure locking, ideal for forming eccentric punches, stepped pins and special-shaped mold tools.

5. Complete Accessory Kit

Equipped with replaceable soft jaws and dedicated chuck wrench to meet diverse clamping demands without extra purchases.

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Main technical parameters

ZCYQ80B one-way punch former

Center height: 80 mm

Clamping diameter in V-groove: 4-30 mm

Stroke of V-block: 25 mm

Number of teeth: 24

Maximum wheel diameter: 200 mm

Maximum radius when dressing arc: convex: r50 mm, concave: r100 mm

ER punch former

ZCYQ80C punch former

3-jaw chuck hole diameter: 16 mm

Minimum clamping diameter: 2 mm

Maximum clamping diameter: 70 mm

The ZCYQ80C punch former comes with 3 jaws for fast and easy fixation of the workpiece. It can also adjust the center of the 3 jaws. Suitable for batch production.

ER punch former