28mm ER 16 Collet Nut With Eccentric Ring M22 x 1.5, SW25 - TECWERK

Take advantage of a DIN‑compliant, balanced clamping solution: the eccentric ring improves axial alignment while the standard M22 x 1.5 thread ensures interchangeability with ER toolholding systems. Order the collet nut directly via Metav Werkzeuge or contact our consultants for matching toolholder advice.

Collet nut ER 16 D28 SW 25 mm with eccentric ring – TECWERK (M22 x 1.5)

The collet nut ER 16 D28 SW 25 mm with eccentric ring is a standard clamping nut for ER collet chucks, designed to deliver secure, repeatable toolholding in workshop and production environments.

• Eccentric ring for fine axial alignment
• Compatible with ER 16 collets and chucks
• M22 x 1.5 thread for standardised fitment
• DIN 6499 compliant, dynamically balanced

Precise clamping for consistent spindle performance

The combination of a dedicated eccentric ring and a balanced execution reduces variation in clamping position and helps to minimise runout during rotation. Built to the DIN 6499 specification, this clamping nut offers a predictable mechanical interface with ER collet systems, ensuring that radial forces are applied uniformly and that high-speed or repetitive operations maintain consistent accuracy. The standard M22 x 1.5 thread secures the nut to common toolholders without the need for custom adaptors.

Smooth workshop integration that saves setup time

A straightforward, standard design means quick installation and minimal adjustment on the shop floor. The nut features 25 mm spanner flats (SW 25 mm) for reliable torque application using common tools, and it is matched to widely used ER toolholding components to support fast changeovers. Reduced setup complexity translates into measurable time savings in small-batch and mixed-production contexts, while the robust mechanical interface supports predictable clamping behaviour across multiple tool changes.

Practical features that reduce downtime and increase confidence

For users unfamiliar with collet systems, ER collets generate uniform radial pressure on the tool shank, which stabilises cutting forces and helps prolong tool life. The eccentric ring on this clamping nut allows micro‑adjustment of axial position to improve concentricity when needed, while the balanced construction helps to lower vibration at speed. The clear, standardised interfaces promote interchangeability across ER‑based toolholders, reducing the need to stock multiple special nuts and helping to keep the production line running.

For a reliable, DIN‑compliant clamping solution from TECWERK, contact Metav Werkzeuge for tailored product selection and technical advice — eMail: info@metav-werkzeuge.com | Tel: +49 2822 7131930

Technical Data

• Article number: 2000833993NW
• Product: Collet nut ER
• Execution: Standard execution with eccentric ring
• Suitable for: ER 16
• Thread: M22 x 1.5
• D: 28
• Spanner flats: SW 25 mm
• Packing unit: 1

Facts

• Diameter: 28 mm
• Thread: M22 x 1.5
• Spanner width: 25 mm
• Packing unit: 1

Special features

• Standard execution with eccentric ring
• For ER collet chucks
• Compliant with DIN 6499
• Balanced execution

FAQ

Which collet size is this nut designed for?
The collet nut is intended for ER 16 collets; the TECWERK collet nut ER 16 D28 SW 25 mm with eccentric ring (SKU 2000833993NW) matches ER 16 toolholding systems.

What thread does the nut use and why is that important?
The nut uses an M22 x 1.5 thread, a common standard that ensures compatibility and straightforward replacement across compatible ER collet chucks.

How does the eccentric ring improve clamping?
The eccentric ring permits fine axial adjustment, which can improve concentricity and compensate for minor misalignments to reduce runout and enhance tool stability.

Is this nut suitable for high‑speed operation?
The nut is supplied in a balanced execution and conforms to DIN 6499, features that help reduce vibration and support consistent behaviour at elevated spindle speeds.

What spanner size is required to fit the nut?
A 25 mm spanner (SW 25 mm) is required for assembly and secure torque application.

Manufacturer / Responsible: NORDWEST Handel AG, Robert‑Schuman‑Straße 17, 44263 Dortmund