Parlec C40-11ERF400 ER11 Collet Chuck CAT40 4 in

Product Description

The PARLEC C40-11ERF400 is an ER11 collet chuck with a CAT40 taper shank, designed for precision toolholding in CNC machining centers. It accepts ER11 collets with a clamping range of 0.5 mm to 7 mm (0.0197 to 0.2756 inches), making it well suited for small-diameter end mills, drills, and reamers. The chuck delivers a TIR of 0.0002 inches and is balanced to 25,000 RPM, supporting high-speed machining applications where runout control is critical. Through-spindle coolant capability routes coolant directly through the tool for effective chip evacuation and extended tool life. Installation and setup are performed by machinists or tool crib technicians using a standard ER collet wrench.

This chuck is intended for use in CAT40-spindle vertical and horizontal machining centers running ER11 tooling. The 4-inch projection and 0.75-inch nose diameter make it practical for operations requiring reach into deep features or confined workpiece geometries. The through-coolant design is particularly useful in drilling and reaming cycles where directed coolant delivery improves hole quality and tool longevity. Wrench actuation provides consistent collet engagement with standard ER11 collet nuts.

Key Features

• ER11 collet system accepts 0.5 mm to 7 mm diameter tooling
• CAT40 taper shank for direct mounting in CAT40 spindles
• TIR of 0.0002 inches for high-precision runout control
• Balanced to 25,000 RPM for high-speed machining compatibility
• Through-spindle coolant delivery for directed coolant flow at the cutting edge
• 4-inch projection with 0.75-inch nose diameter for reach in confined setups

Compatibility

Designed for use with CAT40 spindle machining centers and standard ER11 collets. Collet nut diameter is 0.75 inches. Refer to ER11 collet series specifications to confirm collet and nut compatibility before installation.

Installation Notes

Installation and removal should be performed by a qualified machinist or toolroom technician. Power down and lock out the spindle drive before handling the toolholder. Use a calibrated torque wrench and the appropriate ER collet nut spanner to seat the collet nut to the manufacturer-specified engagement - do not use impact tools on the collet nut. Verify TIR at the tool tip with a dial test indicator after every toolholder change to confirm seating integrity.