42mm ER Collet Chuck SK40 DIN 69871 Form AD 2-16mm Clamping Range, 60mm Projection - TECWERK

Take advantage of precise clamping with DIN-certified compatibility and a wide 2–16 mm clamping range to maintain steady production cycles; suitable for SK40 toolholders with a 60 mm projection for improved tool reach. Order the component directly via Metav Werkzeuge or consult our specialists for integration advice.

TECWERK ER collet chuck DIN 69871 Form AD – SK40, 2–16 mm clamping range

The TECWERK ER collet chuck is a DIN 69871 Form AD clamping solution for holding cylindrical-shank cutters in ER collets, designed for SK40-mounted machining centres and toolholders.

• DIN 69871 Form AD compatibility
• Clamping range 2–16 mm
• SK40 taper with 60 mm projection
• ER25 / 430 E collet interface

Consistent precision for repeatable machining

The steep-taper design to DIN 69871 Form AD delivers reliably repeatable positioning and reduced runout, essential when accuracy matters. With a 2–16 mm clamping span the chuck supports a wide range of common cutter diameters while preserving concentricity and minimising vibration. The adherence to established standards simplifies tool changes and tooling planning in mixed-production environments, letting operators plan setups with measurable tolerances and predictable outcomes. This benefits shops aiming to reduce rework and increase first-pass yields.

Compatibility and mechanical interface explained

Built for SK40 spindles, the holder features a projected length A: 60 mm and an outer diameter D: 42 mm, providing a balance between reach and rigidity. The ER25 / 430 E collet interface accepts ER collets per DIN 6499, enabling a modular approach to clamping: swap collets to adapt to different shank sizes without changing the holder. The Form AD steep taper ensures the toolholder seats securely in the spindle, reducing micro-movement during machining. For users unfamiliar with the standards, DIN 69871 relates to the taper and mounting form, while DIN 6499 defines the ER collet geometry.

Operational benefits, maintenance and workshop integration

The ER-style clamping system offers straightforward maintenance and fast tool change routines, improving uptime on production lines. The compact D: 42 mm body and standard interface mean the chuck integrates easily into existing SK40 tool systems, helping to streamline inventory and reduce tooling complexity. Routine inspections focus on collet wear and taper cleanliness; keeping contact surfaces free from chips and coolant residues preserves rigidity and accuracy. Metav’s quality filter and distribution from Emmerich provide consistent sourcing, making the component a practical choice for workshops seeking reliable, standards-based clamping.

For secure, standards-compliant clamping with SK40 compatibility, contact Metav Werkzeuge to discuss the TECWERK ER collet chuck and receive tailored technical guidance from our consultants.

Technical data

• SKU: 2000833708NW
• Brand: TECWERK
• Product type: ER collet chuck

Core technical data

• Norm: DIN 69871 Form AD
• Clamping range: 2–16 mm
• A: 60 mm
• D: 42 mm
• Collet interface: ER25 / 430 E

Special features

• Compatibility: SK40 taper
• For cylindrical-shank tools in ER collets per DIN 6499
• Steep taper Form AD for secure seating
• Suitable for precision machining and repeatable setups

FAQ

What is the clamping range of this chuck?
The clamping range is 2–16 mm; the TECWERK ER collet chuck (SKU 2000833708NW) accepts ER collets sized to that range for common tool shanks.

Is the holder compatible with SK40 spindles?
Yes, the unit is designed for SK40 taper spindles and seats to DIN 69871 Form AD for correct mechanical engagement.

Which collet size does the chuck use?
The chuck uses the ER25 / 430 E collet interface and is compatible with ER collets manufactured to DIN 6499.

What do the A and D dimensions indicate?
A denotes the projection length, here 60 mm, and D is the body diameter, here 42 mm; both affect reach and rigidity in the tool assembly.

What does DIN 69871 Form AD mean for users?
DIN 69871 Form AD specifies the steep-taper mounting form for toolholders, ensuring standardised seating and repeatable clamping in compatible spindles.

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