Schunk 217923 Hydraulic Chuck Sleeve 6mm Id 20mm Od

Product Description

The SCHUNK 217923 is a hydraulic chuck sleeve designed for use with hydraulic toolholding chucks in precision machining applications. This sleeve features a 6 mm inside diameter and a 20 mm outside diameter, with a 24 mm head diameter and a length under head of 1.9882 inches (50.50 mm). Constructed from steel, it provides the rigidity and durability required for high-repeatability workholding setups. It is installed by toolroom technicians and CNC machinists to adapt or fit tooling within hydraulic chuck bodies, supporting accurate radial positioning of cutting tools.

This sleeve is suited for use in CNC milling, drilling, and boring operations where hydraulic chucks are the primary workholding method. It fits into hydraulic chuck assemblies in both production and job-shop environments. The sleeve does not include through-coolant capability, making it appropriate for dry or flood-coolant setups where internal coolant delivery through the sleeve is not required. Typical installation occurs during tooling setup at the machine or in the toolroom prior to spindle mounting.

Key Features

• 6 mm inside diameter for precise tool shank fitment
• 20 mm outside diameter compatible with standard hydraulic chuck bore sizing
• 24 mm head diameter provides positive axial stop within the chuck body
• Length under head of 1.9882 inches (50.50 mm) for defined tool projection
• Steel construction for durability and dimensional stability under clamping pressure
• No through-coolant passage - suited for external or flood coolant applications

Compatibility

Designed as an OEM-style replacement or supplemental sleeve for hydraulic chuck assemblies accepting a 20 mm outside diameter sleeve with a 24 mm head diameter.

Installation Notes

Installation is performed by a toolroom technician or CNC setup specialist. Before inserting or removing chuck sleeves, ensure the machine spindle is fully stopped and the hydraulic chuck pressure is released according to the chuck manufacturer's procedure. Use appropriate insertion tools to seat the sleeve fully without damaging the bore or sealing surfaces. Do not exceed the clamping pressure rating specified by the hydraulic chuck manufacturer.