44mm Face Clamping Holder Weldon Shank 14mm Bore, DIN 69871 Form AD - TECWERK

Benefit from secure lateral drive and the DIN 69871 Form AD taper combined with a compact SK40 interface for consistent toolholding and reduced run-out; take advantage of the 14 mm clamping bore and 50 mm gauge length for versatile use and order the holder directly via Metav Werkzeuge or consult their specialists for compatibility advice

Face clamping holder DIN 69871 Form AD, Weldon, Ø14 mm, SK40 (TECWERK) — Weldon-style toolholder with steep taper and H4 bore

Face clamping holder DIN 69871 Form AD, Weldon, Ø14 mm, SK40 (TECWERK) is designed for secure retention of cylindrical-shank tools with lateral drive according to DIN 1835‑B, making it suitable for demanding machining where precise torque transmission and concentricity are essential

• Weldon lateral drive for positive torque transfer
• Steep taper DIN 69871 Form AD for precise seating
• Clamping bore H4, Ø14 mm for standard shanks
• Compact SK40 shank with 50 mm gauge length

Consistent drive and secure torque transmission for high-demand machining

The Weldon-style lateral drive ensures a positive mechanical connection between spindle and tool, which reduces slippage under heavy cutting loads and improves repeatability. By combining a Weldon clamping face with a steep taper conforming to DIN 69871 Form AD, the holder delivers stable torque transfer while maintaining concentricity. This arrangement is particularly beneficial in operations that demand sustained cutting forces, where a reliable lateral drive prevents rotation of the tool in the chuck and reduces wear on clamping surfaces. The result is more predictable tool life and fewer rejects due to run-out issues.

Precise seating and compatibility with SK40 spindles

The toolholder’s SK40 interface with a 50 mm gauge length provides a standard, compact connection to compatible spindles. The internal clamping bore specified with tolerance H4 and a nominal Ø14 mm diameter guarantees a tight fit for cylindrical shank tools aligned to DIN 1835‑B. For workshops integrating a variety of cutters and drills, this holder simplifies tool changes while maintaining the precision required for repeatable machining. The steep taper design aids in fast, accurate seating and helps to maintain axial alignment during high-speed rotation.

Practical design for reliable workshop use and maintenance

Manufactured for straightforward handling, the holder features a clean geometry that allows easy inspection and maintenance of the clamping surfaces. The face clamping arrangement avoids overly complex internal mechanisms; regular checks of the Weldon flats and the seating taper are sufficient to preserve performance. For workshops focused on uptime, the uncomplicated construction reduces downtime for servicing and helps sustain production flow. Clear conformity to established norms reduces uncertainty when specifying toolholding solutions for new or existing setups

For personalised advice on compatibility, delivery options and secure supply of TECWERK toolholders, contact Metav Werkzeuge in Emmerich; their specialists will assist with technical clarification and procurement

Technical data

• Article number: 2000833729NW
• Label: Flächenspannfutter DIN 69871AD Weldon Spann-D.14mm SK40 A.-L.50mm TECWERK
• Manufacturer: TECWERK

Core measurements

• Diameter D: 44 mm
• Gauge length A: 50 mm
• Clamping Ø d: 14 mm
• Bore tolerance: H4
• Standard: DIN 69871 Form AD

Special features

• Weldon lateral drive (Weldon)
• Steep taper DIN 69871 Form AD
• For tools with cylindrical shank and lateral drive to DIN 1835‑B
• SK40 spindle taper

FAQ

What shank sizes does this holder accept?
The holder accepts cylindrical shanks with a clamping bore of Ø14 mm (tolerance H4); the TECWERK face clamping holder is intended for tools matching that diameter and DIN 1835‑B lateral drive features, SKU 2000833729NW.

Is the taper compatible with standard SK40 spindles?
Yes, the unit features a SK40 interface and the steep taper DIN 69871 Form AD, making it compatible with spindles designed for that standard when correct seating and inspection are observed.

What is the main advantage of the Weldon drive on this holder?
The Weldon lateral drive provides positive mechanical engagement for torque transfer, minimising slippage of the tool within the holder during heavy cuts and improving repeatability in serial machining.

Can the holder be used with tools specified to DIN 1835‑B?
The design specifically accepts tools with cylindrical shanks and side drive according to DIN 1835‑B, ensuring conformity for cutters and accessories built to that specification.

How should wear be checked to maintain precision?
Inspect the seating taper and Weldon flats regularly; the TECWERK face clamping holder requires visual and tactile checks for nicks or deformation and periodic cleaning to maintain concentricity and secure clamping.

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