200x250x108mm Four-Jaw Square Self-Centring Machine Vice, 1620 kgf Clamping Force - Vertex

Take advantage of the combination of a self‑centring four‑jaw design, 1,620 kgf clamping force and robust build quality for dependable, repeatable workholding. Order the chuck directly via Metav Werkzeuge or consult the Metav team for specification support.

VMJ-8 — 4‑jaw self‑centring square chuck by Vertex with high clamping force

The VMJ-8 is a self‑centring, four‑jaw square chuck engineered for secure workholding in precision machining and heavy‑duty turning applications.

• Self‑centring four‑jaw design
• High clamping force: 1,620 kgf
• Accuracy 0.03
• Robust construction, 21.5 kg mass

Consistent precision for machining accuracy

The self‑centring four‑jaw mechanism delivers uniform clamping across the jaw set, which supports consistent part concentricity and reduces rework. With a specified accuracy of 0.03, the chuck provides measurable repeatability that benefits setup reliability and process control. The design minimises radial run‑out during turning and milling operations; for operators less familiar with technical tolerances, this means fewer scrapped parts and more predictable finishing results. Emphasis on stable clamping translates directly into improved surface quality and tighter dimensional control.

Heavy clamping capability for larger, demanding workpieces

A clamping force of 1,620 kgf ensures secure retention of workpieces under significant cutting loads, enhancing stability during deep cuts or interrupted cuts. The unit's 21.5 kg mass contributes to damping and reduces vibration, supporting longer tool life and higher feed rates where appropriate. The square mounting and robust construction make the chuck suitable for demanding shopfloor environments where mechanical resilience and repeatability are priorities. Performance‑oriented shops benefit from this combination of force and mass when machining tougher materials or larger diameters.

Efficient setup and practical integration for workshop use

The chuck is designed for straightforward integration with lathes and machining centres that accept square‑mounted chucks, enabling rapid changeovers and reproducible setups. The self‑centring feature reduces alignment steps during workpiece change, saving machine time without sacrificing hold quality. Maintenance requirements are conventional: regular cleaning of the jaw tracks and periodic lubrication preserves long‑term performance. For teams transitioning from simple three‑jaw chucks, the four‑jaw self‑centring design offers a balance between versatility and precision for mixed production runs.

For reliable high‑force clamping from Vertex, contact Metav Werkzeuge in Emmerich for availability and tailored advice — Metav's specialists can be reached at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: VMJ-8
• GTIN: 4061905087486
• Manufacturer: Vertex

Core specifications

• Dimensions: 200x250x108 mm
• Weight: 21.5 kg
• Clamping force: 1,620 kgf
• Accuracy: 0.03

Features

• Self‑centring four‑jaw square chuck
• Square mounting
• ECLASS: 21020590

FAQ

What level of concentricity can be expected from this chuck?
The chuck achieves a specified accuracy of 0.03, which in practice supports tight concentricity for precision turning and milling when properly set up and maintained.

Is the clamping force sufficient for interrupted cuts and heavy milling?
With a clamping force of 1,620 kgf, the chuck provides secure retention for demanding operations; the mass and construction also help to damp vibration during heavy cuts.

Which machines is this chuck compatible with?
The design suits machines that accept square‑mounted, four‑jaw chucks; compatibility should be confirmed against spindle or adaptor specifications and mounting interfaces.

How does the self‑centring four‑jaw design compare to three‑jaw chucks?
The self‑centring four‑jaw offers a compromise between the speed of three‑jaw systems and the versatility of independent jaws, delivering improved repeatability with simpler setup than fully independent jaw arrangements.

Are replacement jaws or spare parts available for this model?
Spare parts and jaw sets are available through Vertex distributors; reference the VMJ-8 article number when enquiring to ensure correct components are supplied.

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