150mm Hollow Spindle Arbor Stop With Internal Jaw Expansion, Adjustable Clamp - TECWERK

Take advantage of a secure internal clamping mechanism and wide adjustability for concise spindle set-up and reduced adjustment time; the rear-insertion design and special tightening key ensure a positive hold and easy repositioning. Order the hollow spindle stop directly via Metav Werkzeuge or consult the specialists for application advice.

TECWERK Hollow spindle stop – rear insertion, clamping range 4–110 mm

A TECWERK hollow spindle stop for rear insertion, designed to secure tools inside hollow spindles with an adjustable internal gripping range

• Rear insertion for compact spindle installation
• Adjustable clamping 4–110 mm
• Special key for secure tightening
• Push-fit jaws for reliable internal grip

Secure internal clamping for stable spindle operation

The hollow spindle stop provides a mechanically positive internal grip by expanding its jaws against the spindle bore when the tightening screw is actuated. Inserted from the back of the hollow spindle, the device converts axial screw movement into radial bite, producing a secure seating that reduces the risk of slippage during rotation. The specified clamping range 4–110 mm covers many common hollow spindle diameters, enabling a single device to serve multiple set-ups and supporting consistent machining results through improved tool retention.

Fast insertion and tool-free length adjustment

Assembly and position changes are executed from the spindle rear with a special key that both locks and releases the mandrel. Tightening forces the gripping segments outward against the inner wall, while releasing the key permits linear repositioning along the spindle axis. This mechanism allows quick repositioning without full disassembly of the drive train, which translates into reduced downtime and faster changeovers for production or maintenance cycles. The straightforward operation is especially beneficial in high-throughput workshop environments.

Reliable performance under repetitive use

The mechanical principle—radial expansion by a central tightening screw—offers durable and repeatable clamping behaviour over many cycles. The design focuses on a positive internal hold rather than frictional surface contact alone, which tends to deliver a more dependable seat in service. For operations requiring repeatable axial positioning and a trusted internal grip, the unit is engineered to maintain a consistent reliable hold, supporting process stability and part quality.

Simple integration and practical handling

The rear-insertion concept keeps the external spindle envelope uncluttered and facilitates integration into existing spindle housings. Adjustment is carried out using the supplied special key, enabling precise repositioning in length without ancillary fixtures. The unit is supplied as a single packaged item, ready for installation into compatible hollow spindles and intended to streamline set-up operations while maintaining a compact footprint on the machine.

For dependable internal clamping select the TECWERK hollow spindle stop and contact Metav Werkzeuge in Emmerich for specialist advice and order handling at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: 4000832499NW
• Item: Hohlspindelanschlag f.Spindel-D.94-110mm
• Product type: Hohlspindelanschlag
• Manufacturer: TECWERK
• Packaging unit: 1

Core specifications

• Clamping range: 4–110 mm
• Spindle diameter reference: 94–110 mm
• Packaging unit: 1

Features

• Rear insertion into hollow spindle
• Tightened and released with a special key
• Tightening screw expands jaws to inner wall
• Adjustable axial position after release
• Secure internal seating for reliable hold

FAQ

What clamping range does the device cover?
The device provides a clamping range of 4–110 mm, suitable for many hollow spindle bores and flexible set-ups.

How is the stop installed and secured inside the spindle?
The stop is inserted from the rear of the hollow spindle and secured by a tightening screw; turning the supplied special key forces the jaws outward to press against the inner wall, creating a secure seat.

Can the axial position be adjusted without full removal?
Yes. When the special key is used to release the tightening screw, the stop can be moved axially and then retightened to the required position.

Is this product suitable for high-cycle shop use?
The mechanical expansion principle of the stop is designed for repeatable operation and offers consistent seating over multiple cycles, making it suitable for demanding workshop environments.

Which brand and SKU identify this item?
This hollow spindle stop is supplied by TECWERK and is listed under SKU 4000832499NW.

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