42mm Face Clamping Chuck Weldon 12mm Clamping Ø, DIN 69893 Form A HSK-A63 - TECWERK

Benefit from a secure Weldon flat and the fast-change HSK‑A63 interface for consistent tool concentricity; combined with a 12 mm clamping capacity and H4 bore tolerance, this arbor supports reliable small-shank toolholding. Order the face-clamping arbor directly via Metav Werkzeuge or ask our consultants if needed.

Face-clamping arbor DIN 69893A, Weldon flat, HSK‑A63 – TECWERK

The Face-clamping arbor DIN 69893A is a Weldon-style clamping holder designed for HSK‑A63 spindles, intended to secure cylindrical-shank tools with a lateral drive flat according to DIN 1835‑B.

• HSK‑A63 interface for fast tool change
• Weldon flat ensures secure lateral drive
• Clamping diameter 12 mm for small-shank tools
• Bore tolerance H4 for precise concentricity

Precision and repeatable positioning for production work

The arbor is engineered to deliver precision where repeatability matters. With the DIN 69893 Form A interface and a specified bore tolerance H4, the holder produces consistent radial runout and seating repeatability, which reduces rework and setup time in batch production. Explaining briefly, the Weldon-style lateral drive secures tools that have a cylindrical shank with a driving flat, ensuring positive torque transmission without relying solely on friction. For workshops upgrading to HSK systems, this translates directly into stable machining results and predictable cycle times.

Designed for compatibility and quick tool changes

Thanks to the HSK‑A63 taper and the Weldon configuration, the arbor supports efficient tool change routines and broad compatibility with cutters that conform to DIN 1835‑B. The combination of HSK quick-engagement geometry and a face clamping arrangement means the spindle interface and the toolholder deliver a secure mechanical link during acceleration and deceleration phases. The 12 mm clamping capacity is ideal for small-diameter end mills or specialised small-shank tooling, while the hollow shank taper concept maintains spindle balance and minimises overhang where applicable.

Robust clamping concept for operational reliability

Constructed to meet industry standards, the holder offers a proven clamping concept that prioritises operational uptime. The Weldon flat provides a defined lateral drive surface, reducing slippage under torque, and the nominal length of 80 mm gives a clear reference for tool projection and setup planning. By choosing a holder built to DIN specifications, maintenance intervals can be standardised and toolholders kept in serviceable condition with routine inspections. This holder supports predictable performance, which contributes to lower scrap rates and steadier throughput.

For secure Weldon clamping on HSK‑A63 spindles, contact Metav Werkzeuge to discuss technical suitability and procurement—call +49 2822 7131930 or email info@metav-werkzeuge.com

Technical data

• SKU: 2000832388NW
• Product: Face-clamping arbor
• Manufacturer: TECWERK
• Interface: HSK‑A

Facts

• Standard: DIN 69893 Form A
• Clamping diameter: 12 mm
• Outer diameter D: 42 mm
• Nominal length A: 80 mm
• Bore tolerance: H4

Special features

• Weldon flat for lateral tool drive
• Hollow shank taper to DIN 69893 Form A
• For cylindrical shank tools with lateral drive per DIN 1835‑B

FAQ

What interface does the arbor use?
The arbor uses an HSK‑A63 interface and is specified to DIN 69893 Form A for compatible spindle engagement.

Which tool shanks are compatible with this holder?
This holder is intended for tools with a cylindrical shank and a Weldon-style lateral drive flat in accordance with DIN 1835‑B; the clamping diameter is 12 mm.

How does the Weldon flat affect clamping reliability?
The Weldon flat provides a positive lateral drive surface, improving torque transmission and reducing the likelihood of slippage compared with friction-only clamping.

What does the H4 bore tolerance mean for setup?
A bore tolerance of H4 ensures tight, repeatable seating of the tool shank in the arbor, which supports consistent concentricity and reduced runout in machining.

Can the arbor be used on any HSK‑A63 spindle?
The arbor is designed for spindles compliant with HSK‑A63; verification of spindle and toolholder standards is recommended to ensure proper fit and function.

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