Sandvik Coromant 6255465 Hydraulic Tool Chuck C6 12mm

Product Description

The SANDVIK COROMANT 6255465 is a hydraulic tool chuck designed for precision machining applications on CNC machining centers and milling platforms. It features a C6 modular connection shank, providing a rigid, repeatable interface for high-speed cutting operations. The chuck accepts a 12 mm (0.4724 inches) bore and delivers a projection of 82 mm with a 28 mm nose diameter, making it well-suited for reaching into confined workpiece features. Rated to 20,000 RPM and equipped with through-coolant capability, it supports high-speed finishing and semi-finishing passes where heat management and chip evacuation are critical. Installation and setup are handled by machinists and CNC toolroom technicians.

This hydraulic chuck is used in precision CNC milling and machining center setups where tool runout control and vibration damping are required. The C6 modular connection is compatible with tooling systems using the Coromant Capto C6 interface standard. Typical applications include high-speed finishing of molds, dies, and close-tolerance bores in aerospace, automotive, and general metalworking environments. The 36 mm clamping depth provides secure grip on straight-shank cutting tools such as end mills, drills, and reamers with 12 mm shanks.

Key Features

• C6 modular connection shank for rigid, repeatable tool mounting
• 12 mm bore diameter (0.4724 inches) accommodates standard straight-shank tooling
• Rated to 20,000 RPM for high-speed machining operations
• Through-coolant design supports direct coolant delivery to the cutting edge
• 82 mm projection enables reach into deep or confined workpiece features
• 36 mm clamping depth (1.4173 inches) provides secure tool retention

Compatibility

Designed for use with CNC machining centers equipped with a C6 Coromant Capto modular tooling interface and 12 mm straight-shank cutting tools.

Installation Notes

Installation should be performed by a qualified machinist or CNC toolroom technician. Ensure the spindle and modular connection interface are clean and free of chips or debris before mounting. Power down and lock out the machine spindle before any tool change or chuck installation. Follow the machine tool manufacturer torque and clamping procedures for the C6 interface; do not improvise clamping force values.