100mm Combination Milling Arbor With 22mm Clamping Shank, DIN 69871 Form AD/B - TECWERK

Take advantage of the steep taper DIN 69871 Form AD/B and the 22 mm clamping diameter for secure, repeatable cutter retention; the SK40 shank and the case-hardened, ground finish ensure long service life and stable machining. Order the TECWERK combination mounting arbor directly via Metav Werkzeuge or consult our technical advisors for application guidance.

Kombiaufsteckfräsdorn DIN 69871 AD/B – SK40, 22 mm clamping diameter (TECWERK)

The Kombiaufsteckfräsdorn DIN 69871AD/B is a combination mounting arbor designed for secure attachment of milling cutters with longitudinal or transverse keyways in conventional and CNC milling spindles

• Steep taper DIN 69871 Form AD/B
• Accepts cutters with longitudinal or transverse key
• Case-hardened and ground finish
• SK40 shank with 22 mm clamping diameter

Consistent clamping for repeatable machining results

The combination mounting arbor is built around the DIN 69871 Form AD/B steep taper, which provides a rigid connection between spindle and toolholder. This taper design reduces runout and vibration, delivering consistent concentricity across repeated tool changes. By combining a SK40 shank with a defined 22 mm clamping diameter, the arbor guarantees stable radial support for mounted cutters, improving surface finish and extending tool life. For production environments where repeatability matters, this configuration translates into predictable process outputs.

Versatility for keyed milling cutters and modular setups

Designed to accept milling cutters with either a longitudinal or transverse key, the arbor permits flexibility in cutter selection and tool arrangement. The keyway compatibility simplifies retrofitting of existing cutter sets and supports modular tooling concepts in both jobbing shops and production cells. Where quick adaptation between operations is required, the ability to mount a range of keyed cutters on a single holder minimises setup complexity while maintaining the required axial and radial restraint for safe machining.

Durability through hardened and precision-ground surfaces

Critical load-bearing zones of the arbor are case-hardened and ground, which enhances wear resistance and maintains geometric accuracy under cyclic loads. The hardened surface resists fretting and local deformation at the clamping interface, while precision grinding ensures that mating surfaces seat correctly within the spindle taper. The result is a toolholder that retains its dimensional integrity over extended service intervals, reducing the need for frequent replacements and preserving machining tolerances.

Integration into workshop toolchains and maintenance benefits

With a nominal projection of A = 100 mm and a compact overall profile, the arbor fits common SK40 toolholder systems without requiring major toolroom changes. The construction supports straightforward inspection and maintenance: periodic checks of taper faces and clamping bore are sufficient to identify wear, and the robust finish reduces the incidence of corrosion-related issues. For workshops aiming to centralise tooling needs, the arbor's compatibility and serviceability contribute to a lower total cost of ownership and simpler inventory management.

For secure, workshop-ready clamping from TECWERK, request technical advice or place enquiries through Metav Werkzeuge for tailored application support and availability

Technical data

• Article number: 2000833798NW
• Product type: Combination mounting arbor
• Brand: TECWERK
• Standard: DIN 69871 Form AD/B

Core data

• Shank diameter: 40 mm
• Clamping diameter: 22 mm
• Projection A: 100 mm
• L: 19 mm

Special features

• Steep taper DIN 69871 Form AD/B
• For milling cutters with longitudinal or transverse key
• Case-hardened and ground
• SK40 shank

FAQ

What materials of cutters can be mounted on this arbor?
The TECWERK combination mounting arbor accepts milling cutters with longitudinal or transverse keyways; material compatibility depends on the cutter specification rather than the arbor itself, which provides the mechanical interface for keyed cutters (SKU: 2000833798NW).

How does the DIN 69871 Form AD/B taper affect runout?
The DIN 69871 Form AD/B steep taper ensures a tight, concentric engagement with the spindle taper, reducing runout and vibration compared with less precise interfaces, which supports improved surface finish and tool life when using the TECWERK arbor.

Is the clamping diameter a fixed value and what does 22 mm mean in practice?
The 22 mm clamping diameter indicates the bore size used to secure the cutter on the arbor; this fixed dimension matches cutters and adaptors designed for a 22 mm fit, ensuring proper radial support and axial retention.

What maintenance is recommended to keep performance stable?
Periodic inspection of taper faces and the clamping bore for wear, light cleaning of contact surfaces, and protection against corrosion are recommended to preserve the arbor’s accuracy and service life; the case-hardened and ground finish of the TECWERK arbor reduces wear rates.

Can the arbor be used in both manual milling machines and CNC centres?
Yes, the SK40 shank and the DIN 69871 taper are standardised interfaces that enable use in both conventional milling spindles and CNC machines equipped for SK40 tooling, provided the machine spindle accepts DIN 69871 toolholders.

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