Techniks CAT40ER32-4 ER32 Collet Chuck CAT40 4 in

Product Description

The TECHNIKS CAT40ER32-4 is an ER32 collet chuck with a CAT40 taper shank, designed for use in CNC machining centers that require a secure, repeatable tool-holding solution. The chuck accepts ER32 collets with a capacity range from 1/16 inch up to 0.788 inches, accommodating a wide variety of cutting tool shanks. With a 4-inch projection and an overall length of 6.687 inches, this chuck positions the cutting tool at a fixed gauge length suited to general-purpose milling, drilling, and reaming operations. It weighs 3.4 pounds and does not include through-coolant capability.

This collet chuck is used in machine shops running CNC vertical or horizontal machining centers equipped with CAT40 spindle interfaces. It is a common choice for production environments where operators need consistent tool projection and repeatable runout performance across multiple tool changes. The ER32 collet system supports a broad range of shank diameters, making this chuck versatile for mixed-tooling setups in both job-shop and production-floor applications. Installation and tool changes are typically performed by machinists or CNC setup technicians.

Key Features

• CAT40 taper shank for direct mounting in CAT40-spindle machining centers
• ER32 collet system supports tool shanks from 1/16 inch to 0.788 inches
• 4-inch projection with 6.687-inch overall length for consistent gauge-length setup
• Nut tightening torque rated at 100 ft-lb for secure collet clamping
• No through-coolant port - suited for external or flood coolant delivery setups
• 3.4-pound chuck weight compatible with standard CAT40 tool management systems

Compatibility

Designed for use with CAT40-spindle CNC machining centers and compatible with the ER32 collet series. Collets are not included and must be sourced separately in the appropriate ER32 size range.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Power down and lock out the machining center spindle before inserting or removing any tool holder. Use a calibrated torque wrench to tighten the ER32 collet nut to the specified 100 ft-lb value - under- or over-torquing the nut can affect runout and collet life. Inspect the CAT40 taper and spindle bore for chips or contamination before seating the chuck.