52mm Face Clamping Chuck Weldon Shank DIN 69871 Form AD, 20mm Clamp Ø, A63mm - TECWERK

Take advantage of the combination of secure Weldon lateral drive, DIN 69871 Form AD spindle compatibility and precise clamping Ø 20 mm for stable, repeatable machining results; order the chuck directly via Metav Werkzeuge or consult the team for application advice.

Face clamping chuck DIN 69871 Form AD, Weldon, SK40, Clamping Ø 20 mm — TECWERK

The Face clamping chuck DIN 69871 Form AD is a Weldon-style tool holder for SK40 spindles, intended to accept cylindrical-shank tools with a lateral drive flat to DIN 1835‑B and ensure concentric clamping in milling and drilling applications

• Compatible with DIN 69871 Form AD spindles
• Weldon flat for positive lateral drive
• Clamping Ø 20 mm for cylindrical shanks
• SK40 steep taper, A length 63 mm

Secure, repeatable clamping for consistent machining

The holder combines a Weldon flat with a tight bore tolerance to deliver reliable axial and radial positioning. With a clamping Ø 20 mm and specified bore tolerance H4, the assembly reduces runout and supports improved surface finish and longer tool life. This level of repeatability is particularly valuable where small deviations can lead to scrap or rework, as the secure lateral drive prevents torsional slippage during heavy transverse cutting.

Seamless integration with standard spindle systems

Built to DIN 69871 Form AD with an SK40 steep taper, the component matches common spindle interfaces to simplify retrofit and setup. The specified dimensions — A: 63 mm axial length and D: 52 mm body diameter — ensure predictable stack heights and reliable seating in milling spindles. Using standard interfaces minimises changeover time and supports a more efficient production flow when swapping tooling or adapting fixtures.

Simplified tooling management for everyday workshops

Accepting tools with cylindrical shanks and a lateral drive flat to DIN 1835‑B, the chuck accommodates a broad range of common cutters and drills without additional adaptors. That compatibility reduces the need for specialist holders and streamlines inventory, making it easier to maintain readiness across small-batch and mixed-production environments. The Weldon lateral take‑off keeps commonly used tools fastened securely for repetitive tasks.

Precision specifications that reduce downtime

Clear technical tolerances and standardised connections support predictable performance across multiple machines and operators. The combination of a steep taper (Form AD) and defined bore tolerance helps to prevent axial play and ensures repeatable concentricity at the tool tip. Fewer alignment issues translate into less downtime for recalibration and fewer interruptions to production, supporting steady throughput in the workshop.

Contact Metav Werkzeuge for application guidance on this TECWERK SK40 face clamping chuck and ensure the holder matches the machine interface and tooling strategy — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000833740NW
• Item label: Flächenspannfutter DIN 69871AD Weldon Spann-D.20mm SK40 A.-L.63mm TECWERK
• Manufacturer: TECWERK
• Product type: Face clamping chuck

Facts

• Norm: DIN 69871 Form AD
• Clamping Ø: 20 mm
• A: 63 mm
• D: 52 mm
• Bore tolerance: H4
• Packaging unit: 1

Special features

• Weldon flat (positive lateral drive)
• For cylindrical shanks with lateral drive flat to DIN 1835‑B
• Steep taper (Form AD)
• Bore tolerance H4 for improved concentricity

FAQ

What clamping diameter does this chuck provide?
The chuck offers a clamping diameter of 20 mm, suitable for cylindrical-shank tools with a Weldon flat in accordance with the product specification.

Which spindle taper is this holder compatible with?
Compatibility is with SK40 spindles using the DIN 69871 Form AD interface as stated for the TECWERK face clamping chuck (SKU 2000833740NW).

Can the holder accept tools with a lateral drive flat?
Yes, the holder is designed for tools with a lateral drive flat to DIN 1835‑B, enabling secure transmission of torque via the Weldon flat.

What level of concentricity can be expected?
Concentricity is supported by the specified bore tolerance H4 and the precise seating of the Form AD taper, reducing runout for more consistent machining.

Is this chuck suitable for quick retrofit in existing mills?
The standardised DIN 69871 Form AD and SK40 taper permit straightforward integration into compatible spindle systems without bespoke adaptors.

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