Sandvik Coromant 6629052 Hydraulic Tool Chuck C4 20mm

Product Description

The SANDVIK COROMANT 6629052 is a hydraulic tool chuck designed for precision metal-cutting applications on CNC machining centers and turning centers equipped with a C4 modular connection shank. Hydraulic clamping delivers consistent radial runout control and vibration damping, making this chuck well suited for finish boring, reaming, and high-speed milling operations. The chuck accepts a 20 mm bore diameter (0.7874 inches), provides a 90 mm projection (approximately 3.54 inches), and is balanced to 39,000 RPM, supporting high-speed spindle work. Through-coolant capability directs cutting fluid directly to the tool tip for improved chip evacuation and tool life.

This hydraulic chuck is intended for use in CNC machining environments where tight tolerances and surface finish quality are critical. The C4 modular connection shank interfaces with compatible Coromant Capto-style tooling systems. With a 38 mm nose diameter (1.4961 inches) and a 36 mm clamping depth (0.6299 inches), the chuck provides a secure grip on straight-shank cutting tools including drills, end mills, and reamers. It is installed by toolroom technicians and CNC setup personnel in production and job-shop settings, both in light-duty precision work and higher-volume machining operations.

Key Features

• Hydraulic clamping mechanism provides vibration damping and consistent runout control
• Balanced to 39,000 RPM for compatibility with high-speed spindle applications
• Through-coolant design channels fluid directly to the cutting zone
• C4 modular connection shank for repeatable, rigid tool changes
• 20 mm bore accommodates a wide range of straight-shank tooling
• 90 mm projection and 36 mm clamping depth suit deep-reach and standard setups

Compatibility

Designed for use with C4 modular connection spindle interfaces on CNC machining centers. Accepts straight-shank cutting tools with a 20 mm shank diameter. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation and tool changes should be performed by qualified CNC toolroom technicians or setup personnel with the machine spindle at a complete stop and all power isolated per the machine manufacturer lockout-tagout procedure. Verify that the tool shank and bore are clean and free of chips or burrs before inserting the cutting tool. Engage and release the hydraulic clamping mechanism only with the correct hex key or actuation tool specified for the chuck series to avoid damaging the hydraulic circuit. Confirm runout and balance acceptability at the target spindle speed before returning the machine to production.