Haimer A63.144.1/2Z.3 Shrink-fit Holder HSK63A

Product Description

The HAIMER A63.144.1/2Z.3 is a shrink-fit tool holder adapter from the Power Series, designed for precision CNC machining applications. It features an HSK63A taper shank interface and accepts cutting tools with a 0.5-inch bore diameter. The adapter provides a 5.12-inch projection length and a 0.94-inch nose diameter, making it suitable for deep-reach and high-speed operations. Balanced to 25,000 RPM, this holder supports demanding spindle speeds without sacrificing concentricity. It includes through-coolant capability with Cool Jet functionality, directing coolant directly to the cutting edge for improved chip evacuation and tool life. Licensed machinists and CNC setup technicians are the primary installers of this component.

This adapter is intended for use in CNC machining centers equipped with HSK63A spindle interfaces. It is well-suited for high-speed milling, drilling, and finishing operations in both production and job-shop environments. The 1.85-inch clamping depth provides secure tool retention for a wide range of shank lengths. Through-coolant support makes it a practical choice for applications involving deep-hole drilling or heat-sensitive materials where direct coolant delivery is required.

Key Features

• HSK63A taper shank for rigid, high-speed spindle engagement
• 0.5-inch hole diameter for standard half-inch shank tooling
• 5.12-inch projection length for deep-reach machining setups
• Balanced to 25,000 RPM for high-speed spindle compatibility
• Through-coolant with Cool Jet for direct cutting-edge coolant delivery
• 1.85-inch clamping depth for secure tool retention

Compatibility

Designed for CNC machining centers with HSK63A spindle interfaces accepting shrink-fit tool holder adapters with a 0.5-inch bore.

Installation Notes

Installation requires a shrink-fit induction heating unit to thermally expand the bore before inserting the cutting tool shank. Always allow the holder to cool completely and verify tool runout with a dial indicator before returning the spindle to service. Ensure the spindle is fully stopped and the machine is in a safe state before mounting or removing the holder. Follow the machine tool manufacturer's torque and drawbar specifications for HSK63A interfaces.