Kennametal 5521076 Hydraulic Tool Chuck CAT50 Taper Shank

Product Description

The KENNAMETAL 5521076 is a hydraulic tool chuck designed for CAT50 taper shank spindle interfaces on CNC machining centers. It uses hydraulic clamping to secure cutting tools with a 1-1/4 inch bore diameter, delivering high concentricity and consistent gripping force across a range of tooling applications. With an 80 mm projection, 80 mm nose diameter, and 51 mm clamping depth, this chuck suits applications where controlled tool reach and rigid radial support are required. Through-coolant capability allows direct coolant delivery to the cutting zone. Licensed machinists and CNC setup technicians install this chuck during toolholder changeovers or machine builds.

This hydraulic chuck is suited for use in production and job-shop environments running CAT50-spindle horizontal and vertical machining centers. The 80 mm projection and 1-1/4 inch bore accommodate solid carbide end mills, reamers, and other shanked tooling of the appropriate diameter. Through-coolant support makes this chuck appropriate for deep-pocket milling, drilling, and boring operations where chip evacuation and tool temperature management are critical. It is a direct-fit toolholder for shops standardized on CAT50 tooling systems.

Key Features

• CAT50 taper shank for direct spindle mounting on compatible machining centers
• Hydraulic clamping mechanism provides high concentricity and repeatable tool seating
• 1-1/4 inch bore diameter accommodates standard shanked cutting tools
• 80 mm projection with 51 mm clamping depth for controlled tool reach and rigid support
• Through-coolant design channels fluid directly to the cutting edge
• Overall length of 181.6 mm for consistent gage-line-to-tip measurement

Compatibility

Designed for use with CAT50 taper spindle machining centers accepting standard V-flange toolholders. Compatible cutting tool shank diameter is 1-1/4 inch.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom technician. Power down and lock out the machine spindle before inserting or removing the toolholder. Use the appropriate CAT50 pull stud and torque the retention knob according to the machine tool builder specifications. Inspect the taper bore and spindle taper for chips or damage before seating the chuck.