Techniks 22295 ER20 Collet Chuck CAT50 Taper Shank

Product Description

The TECHNIKS 22295 is an ER20 collet chuck with a CAT50 taper shank, designed for CNC machining centers that require precise tool holding in milling, drilling, and light boring operations. The chuck features an 8-inch projection from gauge line, providing extended reach for deep-cavity work without sacrificing rigidity. It accepts ER20 collets across a clamping range of 1/16 inch to 1/2 inch, making it compatible with a wide variety of cutting tool shank diameters. Overall length is 12 inches. Weighing 9 pounds, the 22295 is built for production environments where tool runout and repeatability are critical.

This collet chuck is suited for vertical and horizontal machining centers equipped with CAT50 spindle interfaces. The extended 8-inch projection makes it appropriate for workpieces that require tooling clearance beyond what a standard-length chuck can provide, such as deep mold cavities, fixture plates with tall risers, or multi-axis setups where reach is constrained by the workholding arrangement. It is installed and changed out by CNC machinists and toolroom technicians in job shop, production, and die-mold environments.

Key Features

• CAT50 taper shank for direct mounting in CAT50-interface spindles
• ER20 collet system accepts shanks from 1/16 inch to 1/2 inch
• 8-inch projection for extended reach into deep-cavity workpieces
• 12-inch overall length for clearance in tall-workpiece setups
• No through-coolant - suitable for flood or mist coolant delivery from the outside

Compatibility

Designed for use with CAT50 spindle-interface machining centers and standard ER20 collets. Accepts any ER20-series collet within the 1/16 inch to 1/2 inch capacity range.

Installation Notes

Installation requires a CAT50-compatible toolholder tightening fixture and the appropriate ER20 spanner wrench or collet nut wrench. Ensure the spindle is fully stopped and the machine is in an e-stop or lockout-tagout state before changing toolholders. Clean the taper shank and spindle bore thoroughly before seating to prevent runout caused by chips or contamination. Torque the collet nut to the collet manufacturer's specification using a calibrated wrench.