Schunk 1447884 Hydraulic Tool Chuck CAT40 5/8 Bore

Product Description

The SCHUNK 1447884 is a hydraulic tool chuck designed for CAT40 taper shank spindles in CNC machining centers. It uses hydraulic clamping to grip cutting tools with a 15.88 mm (5/8 inch) bore diameter, delivering a total indicator runout (TIR) of 0.003 mm for high-precision work. Balanced to 25,000 RPM, this chuck supports high-speed finishing and contouring operations. Through-coolant capability directs cutting fluid directly to the tool tip, improving chip evacuation and extending tool life. Licensed machinists and CNC setup technicians install this chuck as part of a tooling assembly on vertical or horizontal machining centers.

This chuck is suited for production environments where tight tolerances and consistent repeatability are required. The 64 mm projection length provides clearance for deep-cavity work, while the 49 mm clamping depth ensures a secure grip on standard-length tooling shanks. It is appropriate for use in both high-volume production and precision job-shop settings where spindle speeds exceed what standard collet chucks are rated for.

Key Features

• Hydraulic clamping mechanism provides 0.003 mm TIR for precision tool holding
• Balanced to 25,000 RPM for high-speed machining applications
• Through-coolant port delivers fluid directly to the cutting zone
• 64 mm projection length supports deep-cavity and complex-geometry work
• 49 mm clamping depth (1.929 inches) secures standard shank tooling firmly
• CAT40 taper shank for compatibility with industry-standard spindle interfaces

Compatibility

Designed for use with CAT40 taper spindle interfaces on CNC vertical and horizontal machining centers accepting a 15.88 mm (5/8 inch) bore hydraulic chuck.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician. The spindle must be fully powered down and the machine placed in a safe lockout-tagout state before changing tooling. Use a calibrated torque wrench and follow the machining center manufacturer's drawbar torque specifications when seating the chuck. Inspect the taper shank and spindle bore for contamination or damage before assembly, as foreign material will affect runout and balance at high RPM.