Accupro 1527337 CAT40 Hydraulic Chuck 1/2 Inch Bore

Product Description

The ACCUPRO 1527337 is a CAT40 hydraulic tool holder chuck designed for precision CNC milling and machining center applications. It uses hydraulic clamping to grip cutting tools with a bore diameter of 0.5 inches, delivering a total indicator runout (TIR) of 0.000010 inches for tight tolerances and consistent surface finishes. The chuck is balanced to 25,000 RPM, making it suitable for high-speed spindle work where vibration control is critical. Through-coolant capability routes cutting fluid directly to the tool tip, extending tool life and improving chip evacuation. Machinists and CNC setup technicians install this holder on CAT40-tapered spindles in production and job-shop environments.

This chuck fits CAT40 spindle connections and is used in vertical and horizontal machining centers running high-speed finishing and semi-finishing operations. The 5.75-inch overall length and 1.016-inch nose diameter (25.80 mm) position the cutting tool with sufficient reach for a wide range of workpiece geometries. The 46 mm clamping depth provides a secure grip on standard-length tooling shanks. It suits shops requiring repeatable tool runout across high-volume production runs.

Key Features

• CAT40 taper shank for direct spindle mounting on compatible machining centers
• Hydraulic clamping delivers 0.000010-inch TIR for high-precision cutting applications
• Balanced to 25,000 RPM for high-speed spindle use without vibration-induced error
• Through-coolant design directs fluid to the cutting edge for improved tool life and chip removal
• 46 mm clamping depth secures standard tooling shanks with consistent pull-out resistance
• 1.7500-inch body diameter in a 5.75-inch overall length for broad workpiece access

Compatibility

Designed for use with CAT40 spindle-equipped vertical and horizontal machining centers accepting 0.5-inch bore hydraulic tool holders.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom technician. Power down and lock out the machine spindle before mounting or removing the tool holder. Use a calibrated torque wrench and the machine manufacturer's pull stud torque specification when securing the retention knob. Verify TIR at the tool tip with a dial test indicator after clamping to confirm runout is within tolerance before beginning the cut.