50mm ER Collet Chuck DIN 69871 Form AD 2-20mm Clamping Range, SK40 A.70mm - TECWERK

Take advantage of a proven DIN taper and a broad clamping range for consistent concentricity and fast tool changes; order directly via Metav Werkzeuge or consult the team for specification matching.

ER collet chuck DIN 69871 Form AD (SK40, ER32) – 2–20 mm clamping range

A ER collet chuck DIN 69871 Form AD designed for secure clamping of cylindrical-shank tools in ER collets to DIN 6499, fitted to SK40 spindles for general machining applications

• DIN 69871 Form AD taper
• Clamping range 2–20 mm ER32
• SK40 toolholder interface
• 70 mm projection, 50 mm diameter

Consistent concentricity for precise machining

The ER collet chuck DIN 69871 Form AD delivers repeatable toolholding by combining the standardised DIN 69871 taper with an ER collet system. The steep taper ensures axial rigidity and reliable seating in the spindle, which improves run-out behaviour and reduces vibration during milling or drilling. By converting standard collet clamping into a uniform interface, the holder supports high-precision tool engagement and predictable tool life — a tangible benefit where repeatability and surface finish are priorities.

Faster set-up and broad tooling compatibility

With a clamping range of 2–20 mm and compatibility with ER32 collets to DIN 6499, the chuck accommodates a wide variety of cylindrical shank cutters and drills without frequent tooling changes. This flexibility shortens set-up times and streamlines changeovers on batch work or mixed production runs. The ER system centres the tool within the collet for stable clamping force, which reduces slippage and makes it simple to maintain concentricity when swapping cutters of different diameters.

Robust dimensions for shop-floor reliability

Built with a projection of A: 70 mm and an outer D: 50 mm diameter, the holder provides a balanced combination of reach and stiffness for common machining tasks. The SK40 interface offers secure coupling to common toolholders, while the overall geometry supports consistent axial positioning of the tool. Manufactured to industry standards, the design promotes low-maintenance operation and predictable performance across repeated cycles — an advantage for workshops that value dependable throughput and a steady supply of precision components.

For tailored advice on integrating this TECWERK ER collet chuck into existing SK40 setups, contact Metav Werkzeuge for technical guidance and to secure the correct specification. Email info@metav-werkzeuge.com or call +49 2822 7131930

Technical Data

• Article number: 2000833711NW
• Product type: ER collet chuck
• Norm: DIN 69871 Form AD
• Mounting: ER 32 / 470 E

Core technical data

• Clamping range: 2–20 mm
• Collet size: ER32
• Interface: SK40
• Projection A: 70 mm
• Outer diameter D: 50 mm

Special features

• Steep taper to DIN 69871 Form AD
• For clamping cylindrical shank tools to DIN 6499
• Standardised toolholder interface for stability

FAQ

What clamping diameters does the chuck accept?
The clamping range is 2–20 mm, compatible with ER32 collets for a wide variety of cylindrical shank tools.

Which spindle interface is required for this holder?
The holder fits an SK40 toolholder interface and seats to the DIN 69871 Form AD taper.

Is this suitable for standard ER collets to DIN 6499?
Yes, the design is intended for ER collets manufactured to DIN 6499 and is specified for use with ER32.

What are the key dimensions to check for machine compatibility?
Relevant dimensions are projection A = 70 mm and outer diameter D = 50 mm; confirm these against the machine envelope.

Which SKU and brand identify this product?
This item is supplied as TECWERK ER collet chuck, SKU 2000833711NW.

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