Parlec C50-20ERP612 ER20 Collet Chuck CAT50 Taper

Product Description

The PARLEC C50-20ERP612 is an ER20 collet chuck with a CAT50 taper shank, designed for precision milling and machining operations on CNC machining centers. It accepts ER20 collets with a clamping range of 1 mm to 13 mm (0.0394 to 0.5118 inches), making it suitable for a wide range of end mills, drills, and reamers. The chuck features a 6.12-inch projection from gauge line and holds a total indicator runout (TIR) of 0.0002 inches, supporting accurate, repeatable cutting performance. Through-spindle coolant delivery is built in, directing coolant directly to the cutting zone. The unit weighs 7.45 pounds and is balanced to 20,000 RPM.

This collet chuck is intended for use on CAT50-spindle CNC vertical and horizontal machining centers in production and job-shop environments. The 6.12-inch projection suits applications requiring extended reach, such as deep-pocket milling or workpiece setups with fixture obstructions. The through-coolant feature supports high-speed machining of ferrous and non-ferrous materials where chip evacuation and tool-tip cooling are critical. Installation and tool changes are performed with a standard ER collet wrench. This chuck is appropriate for shops running high-spindle-speed operations up to 20,000 RPM where runout control is a priority.

Key Features

• ER20 collet system with 1 mm to 13 mm clamping capacity
• CAT50 taper shank for direct mounting to CAT50 machining center spindles
• 0.0002-inch TIR for precise, repeatable tool holding
• 6.12-inch projection for extended reach applications
• Integrated through-spindle coolant delivery to cutting zone
• Balanced to 20,000 RPM for high-speed machining compatibility

Compatibility

Designed for use with CAT50-spindle CNC machining centers and standard ER20 collets. Compatible with through-spindle coolant systems.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Power down and lock out the machining center spindle before mounting or removing the chuck. Use the appropriate CAT50 retention knob and torque it per the machine tool manufacturer's specification. Ensure the collet and collet nut are clean and free of chips before assembly to maintain TIR performance.