200mm Reversible Self-Centring Three-Jaw Chuck, 109mm Height, 3xM12 Thread - Vertex

High-repeatability clamping is achieved by the self-centring three-jaw mechanism combined with a 200 mm nominal diameter and a sturdy 16 kg mass, ensuring stable machining and reduced setup time. Order the VSK-8A chuck directly via Metav Werkzeuge or ask our consultants if needed.

VSK-8A 3-jaw self-centring reversible chuck, 200 mm — Vertex

The VSK-8A is a three-jaw, self-centring and reversible chuck engineered for secure workholding in turning and medium- to heavy-duty lathe operations.

• Self-centring three-jaw mechanism
• Reversible operation for internal and external clamping
• 200 mm nominal diameter for larger workpieces
• Robust 16 kg mass for increased stability

Consistent concentricity for predictable results

A self-centring three-jaw design synchronises the jaw movement so that round and indexed parts are clamped to the same centre every cycle, reducing repositioning and inspection time. This concentric clamping principle leads to improved repeatability on batch runs and fewer scrapped parts. The 200 mm nominal diameter expands the usable clamping envelope, permitting larger diameters to be held without additional adapters. For users unfamiliar with the term, self-centring means the jaws move simultaneously, aligning the workpiece to the chuck axis automatically, which simplifies setup and lowers operator dependency.

Versatile clamping to reduce tooling complexity

A reversible chuck enables both external gripping and internal chucking without swapping the primary workholding system, which shortens changeover intervals and reduces the number of separate fixtures required in the tooling cabinet. The design described as reversible supports internal holding of hollow components as well as robust external jaws for solid stock. The provided 3xM12 mounting thread ensures a secure connection to a lathe spindle or backplate, maintaining the required rigidity during higher cutting loads. This capability translates directly into fewer interruptions and a more efficient production flow.

Mass and dimensions that improve surface finish and rigidity

The chuck’s 16 kg mass contributes inertia that dampens vibration during cutting, which in turn helps to improve surface finish and tool life on demanding operations. A height of 109 mm provides a compact yet rigid profile that integrates easily with many lathe configurations while maintaining access for tooling and measurement. Together, the mass and dimensions support stable holding under variable axial and radial forces, making the unit suitable where consistent clamp stability matters. The overall build quality is aimed at industrial use where robustness and repeatable performance are valued.

For robust, repeatable workholding with Vertex quality, contact Metav Werkzeuge in Emmerich for tailored procurement and technical consultation — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• SKU: VSK-8A
• GTIN: 4061905089732
• Manufacturer: Vertex

Facts

• Diameter: 200 mm
• Height: 109 mm
• Weight: 16 kg
• Mounting thread: 3xM12
• eClass: 21020590

Special features

• Three-jaw, self-centring and reversible chuck
• Reversible function for internal and external clamping
• Designed for lathe workholding applications
• Brand: Vertex

FAQ

What nominal diameter does the chuck support? The chuck supports a nominal diameter of 200 mm, suitable for larger turned components and extended clamping envelopes.

Can the chuck be used for internal clamping? Yes, the reversible design permits internal clamping as well as external gripping, allowing flexible use without multiple chucks.

How is the chuck mounted to a spindle or backplate? Mounting is via the provided 3xM12 thread configuration; secure attachment ensures rigidity under cutting loads.

Does the chuck provide improved vibration damping? The substantial mass of 16 kg increases inertia and contributes to vibration damping, which can enhance surface finish and tool life.

What does self-centring mean in practical terms? Self-centring means the jaws move simultaneously to align the workpiece automatically to the chuck axis, reducing setup steps and improving repeatability.

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