Techniks 22239-10 ER20 Collet Chuck CAT40 Taper 10 in

Product Description

The TECHNIKS 22239-10 is an ER20 collet chuck with a CAT40 taper shank, designed for use in CNC machining centers and milling applications. It accepts ER20 collets with a capacity range from 1/16 inch minimum to 0.512 inches maximum, covering a broad range of tooling diameters. The chuck features a 10-inch projection and an overall length of 12.687 inches, making it suited for deep-reach setups where standard-projection toolholders cannot access the workpiece. Installation and removal are handled by licensed machine tool technicians or skilled CNC operators.

This collet chuck is used in vertical and horizontal machining centers equipped with CAT40 spindle interfaces. The extended 10-inch projection is particularly useful in mold and die work, deep-cavity milling, and other applications where clearance between the spindle nose and the workpiece is required. The ER20 collet system is a widely adopted standard, and collets across this series are sourced from multiple tooling suppliers. The 22239-10 ships as a single unit and is stocked as a direct replacement or new-setup toolholder.

Key Features

• ER20 collet system with capacity from 1/16 inch to 0.512 inches maximum
• CAT40 taper shank for compatibility with standard CAT40 spindle interfaces
• 10-inch projection for extended reach in deep-cavity machining applications
• Overall length of 12.687 inches
• Nut tightening torque specification of 59 ft-lb for proper collet seating
• Weighs 5 pounds

Compatibility

Designed for use in CNC machining centers with CAT40 spindle interfaces using the ER20 collet system.

Installation Notes

Installation should be performed by qualified CNC machine tool technicians following the machine tool manufacturer guidelines. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing toolholders. Use a proper ER20 collet chuck wrench and spanner to achieve the specified nut tightening torque. Inspect the taper shank and spindle bore for debris or damage before seating the chuck.