220mm Self-Centring Extra-Flat 3-Jaw Lathe Chuck 1800 kgf - Vertex

Take advantage of the combination of robust clamping performance and a low-profile, space-saving design for efficient, repeatable turning. The self-centring mechanism and high clamping force ensure fast set-up and secure workholding — order the 3-jaw chuck directly via Metav Werkzeuge or ask our consultants for installation advice.

Vertex VNBK-6 3-jaw lathe chuck — self-centring, extra-flat, 220 mm

The Vertex VNBK-6 3-jaw lathe chuck is a self-centring, extra-flat chuck engineered for reliable clamping on turning machines and lathes

• Self-centring, extra-flat design
• 220 mm outer diameter
• 1,800 kgf clamping force
• Robust construction, 12.4 kg weight

Faster set-up through reliable centring

The self-centring jaw system reduces set-up time by aligning workpieces automatically when clamped, so changeovers are quicker and repeatability is improved. For batch production and frequent part changes, this mechanism minimises manual adjustment and the associated downtime. The three-jaw arrangement distributes force evenly for consistent positioning, which is particularly advantageous when a precise concentric hold is required for turning operations.

High clamping force for stable turning

Designed to deliver 1,800 kgf of clamping force, this chuck provides a firm grip that reduces the risk of slippage during heavy cuts or interrupted machining. The 220 mm diameter suits medium-sized components and offers a balance between accessibility and holding capacity. The VNBK-6 is specified to maintain secure contact under operational loads, helping to protect tooling and workpieces while supporting higher material removal rates where process stability is essential.

Low-profile design for improved access and safety

The extra-flat profile shortens the distance between the workpiece and the spindle, improving tool clearance and accessibility for the cutting tool. As a lathe chuck with a compact form, it reduces overhang and the lever effect on the spindle, which can help to lower dynamic loads and vibration. The robust build, reflected in a 12.4 kg mass, contributes to stable rotation while keeping the footprint minimal for tighter setups on modern turning centres.

Contact Metav Werkzeuge for tailored advice and to reserve the Vertex VNBK-6 self-centring 3-jaw chuck for prompt dispatch from Emmerich.

Technical Data

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

Dimensions & Performance

• Diameter: 220 mm
• Weight: 12.4 kg
• Clamping force: 1,800 kgf

Features & Materials

• Type: Three-jaw lathe chuck
• Design: Self-centring, extra-flat
• Weight indication included in specifications

FAQ

What is the main advantage of a self-centring chuck?
A self-centring chuck like the Vertex VNBK-6 aligns workpieces automatically when the jaws are tightened, reducing set-up time and improving concentricity for repeat operations.

Which machines is this chuck suitable for?
The VNBK-6 is intended for installation on turning centres and lathes that accept a 220 mm chuck and can accommodate the chuck's mass and mounting requirements.

How much clamping force does the chuck provide?
The chuck delivers a clamping force of 1,800 kgf, which is designed to hold components securely during demanding turning operations.

Does the low-profile design affect accessibility?
Yes, the extra-flat design shortens the spindle-to-workpiece distance, improving tool access and reducing overhang compared with taller chuck designs.

Is the chuck balanced for high-speed use?
The VNBK-6 is built for stable rotation; balancing requirements depend on the specific machine and operating speeds, and final balancing is recommended according to the lathe manufacturer's guidance.

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