52mm Face Clamping Chuck with 20mm Weldon Collet, Internal Coolant, HSK‑A63 DIN 69893 Form A - TECWERK

High rigidity from the HSK‑A63 interface combined with internal coolant and precise Weldon clamping delivers repeatable positioning and improved tool life; the hollow shank taper to DIN 69893 Form A and side drive to DIN 1835 B ensure secure torque transfer for demanding machining tasks. Order the face clamping chuck directly via Metav Werkzeuge or consult our specialists for application advice.

Weldon face clamping chuck HSK‑A63, 20 mm clamping diameter — TECWERK

The Weldon face clamping chuck HSK‑A63, 20 mm is a compact toolholder designed for secure clamping of cylindrical‑shank cutters, featuring a hollow shank taper and integrated coolant channels for machining centres and CNC applications.

• HSK‑A63 interface for high rigidity
• Internal coolant for improved chip evacuation
• Weldon clamping Ø 20 mm with H4 tolerance
• Side drive to DIN 1835 B for positive torque transfer

High rigidity and repeatable accuracy for production work

The combination of an HSK‑A63 taper and a Weldon‑style clamping seat provides a rigid mechanical connection that reduces run‑out and vibration during cutting operations. The hollow shank taper manufactured to DIN 69893 Form A guarantees a standardised fit, while the H4 bore tolerance on the clamping bore ensures consistent axial positioning and repeatable set‑ups. These characteristics translate into measurable advantages on the shop floor: reduced scrap rates, stable surface finish and less rework, all contributing to a more efficient production flow.

Controlled cooling for longer tool life and stable cutting

Equipped with internal coolant and dedicated side coolant channels, this toolholder feeds cutting fluid directly to the tool shank and cutting zone. The targeted coolant supply helps to control cutting temperature, clear chips from the flank, and reduce thermal expansion of the tool and workpiece. As a result, the toolholder supports higher feeds and cutting speeds where process specification allows, while contributing to longer tool life and fewer unscheduled stops—an operational benefit that improves throughput and lowers total machining cost.

Secure torque transmission and straightforward machine compatibility

The chuck’s side drive surface, produced to DIN 1835 B, provides a positive drive option for tools that require axial torque transfer. With an overall diameter of 52 mm and a collar length of 80 mm, the holder offers stable support in the spindle without excessive projection. These dimensions, together with the 20 mm Weldon clamping diameter, make the assembly suitable for a wide range of milling and drilling heads that accept cylindrical shank tooling. The result is reliable power transmission and predictable machining behaviour in demanding, repeatable operations.

Practical suitability and workshop advantages

Delivered as a single unit and manufactured to recognised standards, the toolholder is immediately applicable in machining centres that accept HSK‑A63 interfaces. It is optimised for cylindrical‑shank cutters where internal coolant and positive side drive increase process reliability. Compliance with DIN standards provides assurance of interchangeability and quality, reducing setup complexity and aligning procurement with industry practice. For complex requirements or custom configurations, Metav Werkzeuge’s technical advisers can assist with integration into existing tool systems and fixture plans.

For precision machining projects requiring robust coolant supply and standardised clamping, contact Metav Werkzeuge to discuss the TECWERK Weldon face clamping chuck (SKU 2000833842NW) and obtain tailored technical guidance via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000833842NW
• Manufacturer: TECWERK
• Product: Face clamping chuck (Weldon style)
• Interface: HSK‑A63

Facts

• Diameter D: 52 mm
• Collar length A: 80 mm
• Clamping Ø d: 20 mm
• Packaging unit: 1
• Standard: DIN 69893 Form A

Special features

• Hollow shank taper according to DIN 69893 Form A
• Internal coolant with side coolant channels for cylindrical shank tools
• Side drive surface to DIN 1835 B
• Bore tolerance H4
• Weldon clamping for secure tool retention

FAQ

What spindle interfaces is this toolholder compatible with?
The Weldon face clamping chuck (TECWERK, SKU 2000833842NW) uses an HSK‑A63 interface and is intended for machines accepting HSK‑A spindles.

How is coolant supplied to the tool?
Coolant is delivered through the holder via internal coolant and side coolant channels, enabling direct supply to the tool shank and cutting zone.

What size of tool shank does the chuck accept?
The chuck provides a Weldon‑style clamping diameter of 20 mm with a bore tolerance of H4, suitable for cylindrical‑shank cutters designed for Weldon clamping.

Is the drive transmission positive or frictional?
This holder includes a side drive surface manufactured to DIN 1835 B, allowing positive torque transmission when a matching tool with a drive slot is used.

Which standards certify the design of the product?
Design and interface conform to DIN 69893 Form A (hollow shank taper) and the side drive follows DIN 1835 B, ensuring standardised fit and function.

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