Schunk 206311 Milling Chuck Extension

Product Description

The SCHUNK 206311 is a milling chuck extension accessory designed to increase reach between a milling chuck and a cutting tool in CNC machining and manual milling operations. This component allows machinists and tooling technicians to access deeper cavities or extend tool projection where standard chuck-to-tool setups fall short. At 0.77 pounds, it is a compact, single-piece accessory suited for integration into existing milling chuck tooling assemblies. Installation requires no special trade licensing but is typically performed by CNC tooling technicians or machinist-level personnel familiar with runout tolerances and balanced tooling requirements.

This extension is applicable in milling environments where standard gauge length is insufficient for the workpiece geometry. It fits into tooling setups on vertical or horizontal milling centers and is commonly used in die and mold work, aerospace part machining, and general precision machining where extended reach is needed without sacrificing chuck rigidity. The accessory is sold as a single unit and is intended for use with compatible SCHUNK milling chuck systems.

Key Features

• Extends effective tool projection in milling chuck assemblies
• Lightweight at 0.77 pounds for minimal impact on spindle balance
• Single-piece accessory for straightforward integration
• Designed for compatibility with milling chuck tooling systems
• Suitable for deep-cavity and extended-reach milling applications

Compatibility

Designed as an OEM-style extension accessory for use with SCHUNK milling chuck tooling systems. Verify chuck bore size and interface specifications against your existing tooling assembly before installation.

Installation Notes

Installation is performed by qualified tooling technicians or machinists. Always power down and lock out the spindle drive before handling chuck tooling components. Ensure the extension and chuck interfaces are clean and free of debris to maintain concentricity and minimize runout. Follow the machine tool manufacturer guidelines for maximum allowable tool projection and spindle speed ratings when using extended tooling setups.