65mm Face Clamping Chuck Weldon Shank 25mm Clamping Ø, DIN 69871 Form AD - TECWERK

Take advantage of precise clamping, standardised taper compatibility and robust drive via the Weldon flat to keep setups reliable and repeatable in daily machining. Benefit from the combination of industrial standards (DIN 69871 Form AD) and a tight bore tolerance (H4) for consistent tool positioning. Order the TECWERK unit directly via Metav Werkzeuge or consult the Metav team for specification matching.

TECWERK face clamping chuck SK40 with Weldon, 25 mm clamping diameter

The TECWERK face clamping chuck is a SK40 toolholder with a steep taper to DIN 69871 Form AD, engineered for secure holding of cylindrical-shank tools with a lateral drive flat according to DIN 1835‑B.

• Weldon flat for secure side-drive
• Steep taper DIN 69871 Form AD
• 25 mm clamping diameter, tolerance H4
• SK40 holder, 100 mm length, 65 mm body

Accurate taper interface for consistent machining

The steep taper compliant with DIN 69871 provides a standardised seating that reduces axial play and improves concentricity compared with non-standard holders. Combined with the SK40 configuration, the holder ensures interchangeability across machines that accept the form AD taper, which simplifies tool inventory and reduces spindle setup time. For workshops that require predictable runout and repeatable placement of cylindrical‑shank tooling, this specification supports reproducible results and lowers scrap rates.

Secure clamping and tight bore tolerance for repeatability

A 25 mm clamping diameter manufactured to H4 tolerance gives a close fit to shank diameters and thus minimises radial displacement during machining. The presence of the Weldon lateral drive means positive torque transmission without relying solely on clamping friction, improving performance on operations with higher lateral loads. These features together deliver improved surface finish and dimensional stability in milling and drilling processes where consistent tool position matters.

Practical integration into workshop workflows

With a compact body diameter of 65 mm and an overall A length of 100 mm, the chuck is designed for straightforward integration into standard SK40 spindles while keeping clearance requirements modest. The construction supports quick tool changes and predictable balance characteristics, contributing to efficient cycle times. For procurement and planning, the unit aligns with existing DIN tool standards, reducing the need for bespoke tooling solutions and simplifying spare‑parts management.

Request specification advice or arrange supply of the TECWERK face clamping chuck via Metav Werkzeuge for dependable delivery from Emmerich — eMail info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000833744NW
• Norm: DIN 69871 Form AD

Facts

• Clamping diameter: 25 mm
• Body diameter: 65 mm
• Length A: 100 mm
• Bore tolerance: H4

Special features

• Weldon flat for lateral drive (DIN 1835‑B)
• SK40 taper holder
• Designed for cylindrical‑shank tools

FAQ

What taper standard does this holder use?
The holder uses the steep taper DIN 69871 Form AD, matching SK40 spindles for standardised seating.

Which shank types are compatible with this chuck?
Tools with a cylindrical shank and lateral drive flat to DIN 1835‑B are compatible with the TECWERK face clamping chuck.

What is the clamping diameter and its tolerance?
The clamping diameter is 25 mm with a H4 tolerance for tight, repeatable fits.

How does the Weldon flat improve machining reliability?
The Weldon lateral drive provides positive torque transmission, reducing slippage under lateral loads and supporting stable machining.

Can this holder be used on any SK40 spindle?
The SK40 configuration and DIN 69871 Form AD taper make it suitable for machines that accept this standard taper; compatibility should be verified against the machine spindle type.

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