Iscar 4501450 ER20 Collet Chuck CAT40 Taper Shank

Product Description

The ISCAR 4501450 is an ER20 collet chuck designed for CNC machining centers and milling machines using a CAT40 taper shank interface. It accepts ER20 collets with a capacity range of 0.041 to 0.514 inches, providing flexibility across a wide range of tool shank diameters. The chuck offers a 5.906-inch projection and a TIR (total indicator runout) of 0.0001 inches, making it suitable for precision cutting, drilling, and reaming operations. Through-coolant capability is supported via both through-spindle and DIN flange delivery. This toolholder is installed and maintained by machinists and CNC setup technicians in production and job shop environments.

This collet chuck is suited for use in CAT40-spindle vertical and horizontal machining centers in both production and toolroom settings. The ER20 collet series is a widely adopted standard, making this chuck compatible with a broad selection of ER20 collets for end mills, drills, taps, and reamers. The through-coolant design supports high-performance cutting strategies where coolant delivery directly to the cutting zone extends tool life and improves chip evacuation. The chuck is balanced to 12,000 RPM, making it appropriate for moderate- to high-speed spindle applications.

Key Features

• ER20 collet system with capacity range of 0.041 to 0.514 inches
• CAT40 taper shank for use in standard CAT40 machining center spindles
• 5.906-inch projection for extended reach applications
• TIR of 0.0001 inches for precision tool holding
• Through-coolant compatible via through-spindle and DIN flange delivery
• Balanced to 12,000 RPM for moderate- to high-speed operations

Compatibility

Designed for use with CAT40-spindle machining centers accepting ER20 collets. Compatible with through-spindle and DIN flange coolant delivery systems.

Installation Notes

Installation and tool changes should be performed by qualified machinists or CNC setup technicians following the machine tool manufacturer's procedures. Spindle power must be locked out and the machine brought to a complete stop before mounting or removing the toolholder. Use the appropriate CAT40 retention knob and torque it with a calibrated torque wrench according to the machine builder's specifications. Inspect the collet, chuck bore, and spindle taper for contamination or damage before each setup to maintain TIR performance.