48mm Face Clamping Chuck Weldon 16mm Clamping Ø, HSK‑A63 DIN 69893 Form A - TECWERK

Take advantage of a compact, standard-compliant clamping solution that combines repeatable precision with straightforward tool change. The Weldon face-clamping holder delivers a 16 mm clamping diameter in a short A-length of 80 mm, guaranteeing secure holding for cylindrical-shank cutters and stable performance at the spindle nose.

TECWERK Weldon face-clamping holder HSK-A63 — DIN 69893 Form A, 16 mm clamping Ø

A Weldon face-clamping holder for HSK-A63 spindles, designed to hold cylindrical-shank tools with a lateral drive flat to DIN 1835-B for reliable machining tasks.

• HSK-A63 interface, DIN 69893 Form A
• Weldon flat for lateral drive to DIN 1835-B
• Clamping diameter 16 mm, bore tolerance H4
• Compact body Ø 48 mm, A-length 80 mm

Consistent clamping accuracy for repeatable machining

This clamping unit focuses on repeatability and secure tool retention. The holder is built to the DIN 69893 standard and uses an HSK-A63 interface, which ensures a precise fit at the spindle taper and a predictable mechanical connection. The specified 16 mm clamping diameter with H4 bore tolerance reduces runout and vibration, translating into improved surface finish and extended tool life. For production environments where process stability is essential, the predictable behaviour of this holder supports tight tolerances and consistent part quality.

Space-saving design that reduces spindle load

A compact external diameter of 48 mm and an A-length of 80 mm keep overhang to a minimum, lowering bending moments on the spindle and reducing the risk of chatter. The short, rigid design benefits high-speed and precision operations by maintaining stiffness close to the cutting zone. Where machine dynamics and spindle life are priorities, the compact construction helps preserve machine performance while supporting efficient chip removal and coolant access.

Fast, secure tool retention using the Weldon flat system

The Weldon arrangement provides positive lateral engagement for tools with a cylindrical shank and a lateral drive flat to DIN 1835-B, eliminating rotational slip under torque. The holder features a hollow-shank taper in DIN 69893 Form A, allowing quick insertion and axial locating during tool changes. The specified bore tolerance H4 ensures a snug fit to the tool shank, helping to avoid micro-movement under cutting loads. For workshops seeking straightforward, mechanical engagement without additional anti-rotation devices, this solution balances simplicity with mechanical security.

Supplier support and practical application guidance

Metav Werkzeuge is presented here as a reliable distribution partner for precision workshop equipment. The holder is especially suitable for milling and finish-machining applications where tools with a Weldon flat are used. For customers preparing fixtures or planning tool-change cycles, the catalogued dimensions and standards make integration into existing tool management systems straightforward. If further clarification is required on compatibility with specific machines or tooling sets, Metav’s advisory line can assist with technical matching and ordering details.

Contact Metav Werkzeuge for tailored advice on the TECWERK Weldon face-clamping holder HSK-A63 (SKU 2000832390NW) — phone +49 2822 7131930 or info@metav-werkzeuge.com

Technical data

• Article number: 2000832390NW
• Brand: TECWERK
• Product: Face clamping holder
• Interface: HSK-A63

Core specifications

• Standard: DIN 69893
• Clamping diameter: 16 mm
• A-length: 80 mm
• Body diameter: 48 mm
• Bore tolerance: H4

Special features

• Weldon flat for lateral drive to DIN 1835-B
• Hollow-shank taper, DIN 69893 Form A
• Designed for tools with cylindrical shank and lateral drive flat

FAQ

What spindle interface does this holder use?
The holder uses an HSK-A63 interface and is manufactured to DIN 69893 Form A, ensuring correct seating in compatible spindles.

Which tool shanks are compatible with this clamping unit?
This Weldon face-clamping holder is made for cylindrical shanks with a lateral drive flat to DIN 1835-B; the clamping bore is 16 mm with H4 tolerance for a secure fit.

How does the Weldon flat improve torque transmission?
The Weldon flat provides a positive lateral engagement that prevents rotational slip under cutting forces; the face-clamping holder transfers torque mechanically via the flat and the clamping interface.

Is this product suitable for high-precision finishing operations?
Yes. The combination of DIN 69893 standardisation, H4 bore tolerance and the HSK-A63 interface supports low runout and stable machining, making it suitable for finishing tasks.

What is the SKU for ordering reference?
Ordering reference: 2000832390NW for the TECWERK Weldon face-clamping holder HSK-A63.

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