220mm Three-Point Self-Centring Low-Profile 3-Jaw Chuck 1,800 kgf Clamping Force - Vertex

Take advantage of the self-centring design, extra-flat profile and substantial clamping force to improve turning accuracy and reduce overhang in production and jobbing shops. Order the Vertex VNBK-6 3-jaw lathe chuck directly via Metav Werkzeuge or ask our consultants if needed.

VNBK-6 3-jaw lathe chuck — self-centring and extra-flat, Ø220 mm

VNBK-6 3-jaw lathe chuck engineered for secure workholding on small to medium turning centres; designed to combine compact dimensions with reliable clamping for efficient machining.

• Self-centring quick set
• Extra-flat profile for reduced overhang
• Ø220 mm nominal diameter
• High clamping force 1800 kgf

Stable clamping for consistent machining results

The three-jaw design provides fast, repeatable centring which shortens setup time and improves throughput. The self-centring mechanism aligns the workpiece automatically, while the specified clamping force of 1800 kgf ensures firm grip during conventional turning and light roughing. For production environments where cycle time and part uniformity matter, this combination reduces rework and supports tighter tolerances. The nominal diameter of Ø220 mm balances capacity and compactness, offering a practical work envelope without excessive spindle overhang.

Compact form reduces overhang and vibration

An extra-flat profile cuts the distance between spindle nose and clamped workpiece, lowering leverage and minimising vibration. Reduced overhang improves surface finish and lengthens tool life through more stable cutting conditions. The flatter geometry also increases accessibility to close-up features on turned parts, helping to simplify setups on vertical and horizontal lathes where space is constrained. Where stability directly affects cycle times, a compact chuck profile contributes to measurable process improvements.

Robust operation that supports shop productivity

Designed for dependable daily use, the chuck’s mechanical specification supports repetitive operations in both workshops and small-scale production lines. Its mass, at 12.4 kg, provides inertia that dampens minor disturbances during turning operations. The combination of substantial clamping capacity and a low-profile design helps maintain concentricity across runs, reducing inspection rejects and increasing machine uptime. This results in a rational investment: improved process reliability and fewer stoppages for repositioning.

Practical use cases and workshop integration

Well suited to general turning tasks, the chuck adapts easily to short-series production, prototyping and maintenance work where quick part changes and repeatability are priorities. The unit is compatible with standard spindle interfaces used on many bench and centre lathes and integrates into existing workholding arrays without the need for specialised fixtures. For workshops consolidating supplies, the product supports a straightforward transition to higher repeatability and lower cycle variance.

For reliable high-clamp turning choose the Vertex VNBK-6 with its self-centring, extra-flat design — contact Metav Werkzeuge for personalised advice and rapid supply from Emmerich: info@metav-werkzeuge.com / +49 2822 7131930

Technical data

• Article number: VNBK-6
• GTIN: 4061905083181
• Manufacturer: Vertex
• eClass: 21020401

Facts

• Diameter: 220 mm
• Weight: 12.4 kg
• Clamping force: 1800 kgf

Special features

• Self-centring design
• Extra-flat profile
• SKU: VNBK-6
• Thumbnail image available

FAQ

What is the nominal diameter of the chuck?
The VNBK-6 3-jaw lathe chuck has a nominal diameter of 220 mm, suitable for many bench and centre turning applications.

Does the chuck centre automatically?
Yes, the chuck features a self-centring mechanism that aligns jaws simultaneously to simplify setup and improve repeatability.

What clamping force can be expected?
The chuck provides a clamping force of 1800 kgf, delivering secure workholding for typical turning tasks.

Is the chuck suitable for reducing overhang on small lathes?
The extra-flat profile reduces overhang and helps lower vibration, making it a good choice where short spindle-to-workpiece distance is required.

Which manufacturer makes this chuck?
This workholding device is produced by Vertex and supplied under SKU VNBK-6 as a compact three-jaw lathe chuck.

Manufacturer: Vertex Machinery Works Co., Ltd.; No. 296, Sec. 1, Feng Shih Road, Fengyuan District, Taichung City 420, Taiwan