315mm Three-Jaw Self-Centring Reversible Chuck, Height 156.5mm, 3xM16 - Vertex

High clamping accuracy from the self-centring mechanism, a reversible 3-jaw layout and a robust 41 kg construction provide secure, repeatable workholding for demanding turning tasks. Benefit from reduced setup times and consistent machining results — order the VSK-12A chuck directly via Metav Werkzeuge or consult the advisors for application guidance.

VSK-12A – 3-jaw reversible, self-centring lathe chuck (Ø 315 mm) by Vertex

The VSK-12A is a reversible, self-centring 3-jaw chuck designed for reliable clamping on lathes and machining centres where fast, repeatable workholding is required.

• Reversible 3-jaw design for internal/external clamping
• Self-centring action for repeatable concentricity
• Heavy-duty construction, 41 kg for stable machining
• Mounting interface with 3xM16 thread

Faster set-ups and consistent machining quality

The combination of a self-centring mechanism and a 3-jaw chuck geometry delivers fast alignment of round and hexagonal stock, reducing the time spent on manual adjustments. For production runs this means fewer interruptions and more consistent part tolerances; the reversible jaw arrangement also allows quick switching between external gripping and internal gripping without changing chucks. The result is measurable process efficiency and improved shop-floor throughput, especially where repeated batches and turnover are frequent. The robust design contributes to stable cuts, minimising vibration and improving surface finish.

Flexible clamping options and clear mounting data

A reversible configuration permits both internal and external workpiece gripping, increasing the range of components that can be processed with a single workholding device. Mechanical mounting is provided via a 3xM16 thread pattern; the chuck presents a diameter of Ø 315 mm and a height of 156.5 mm, making it suitable for installations that accept this interface. The substantial mass of 41 kg helps the chuck resist deflection under load, improving repeatability during heavy-duty turning. For integration, note the mounting thread and overall envelope to ensure compatibility with the lathe spindle and any adapting plates.

Practical handling, inspection and application notes

Due to its weight and construction, safe handling procedures should be observed when fitting the chuck to the spindle; lifting aids or team lifting are advisable. The reversible jaw system simplifies changeover between gripping modes, but correct jaw seating and secure bolting via the spindle interface are essential for safe operation and concentric clamping. The VSK-12A supports production environments where short set-up times, robust clamping and reliable repeatability are priorities; when matched with appropriate tooling and process parameters, the chuck contributes to predictable cycle times and reduced scrap rates.

Contact Metav Werkzeuge for tailored clamping advice and rapid supply from our Emmerich location — specify the VSK-12A (SKU VSK-12A) for precise technical checks and ordering support

Technical data

• Article number: VSK-12A
• SKU: VSK-12A
• GTIN: 4061905090585
• Manufacturer: Vertex

Facts

• Diameter: 315 mm
• Height: 156.5 mm
• Weight: 41 kg
• Mounting thread: 3xM16
• eClass: 21020590

Special features

• 3 jaws
• Self-centring
• Reversible (internal/external clamping)
• Heavy-duty construction

FAQ

What is the primary application of this chuck? The VSK-12A 3-jaw, reversible, self-centring chuck by Vertex is intended for general lathe work and machining-centre turning where rapid alignment and repeatable clamping are required.

How does the reversible, self-centring 3-jaw system function? The three jaws move simultaneously when actuated, centring the workpiece automatically; reversing the jaw orientation allows switching between gripping the exterior or the interior of a component without additional fixtures.

What are the essential dimensions and mounting details to check before purchase? Key values are Ø 315 mm diameter, 156.5 mm height, and a mounting thread of 3xM16; the weight is 41 kg. Confirm these dimensions against the machine spindle and any adapter requirements.

Is this chuck suitable for heavy-duty turning operations? The robust 41 kg construction and three-point clamping provide stable workholding for demanding turning tasks; suitability for specific cutting speeds and feeds should be evaluated against the machine and process conditions.

What precautions are recommended for safe installation and handling? Due to the mass of the chuck, use appropriate lifting equipment or a team lift for mounting. Ensure correct engagement with the spindle thread and that fastening torque follows the machine manufacturer's guidance for safe operation.

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