Sandvik Coromant 6255463 Hydraulic Tool Chuck C5 20mm

Product Description

The SANDVIK COROMANT 6255463 is a hydraulic tool chuck designed for precision metal-cutting operations in CNC machining centers. It accepts a 20 mm bore diameter and features a C5 modular connection shank, allowing fast, repeatable tool changes on compatible machine interfaces. The chuck delivers balanced performance up to 28,000 RPM and supports through-coolant delivery, directing cutting fluid directly to the cutting zone for improved tool life and chip evacuation. Overall length measures 115 mm (4.5276 inches). Installed and maintained by CNC machinists and tooling specialists, this chuck suits high-speed finishing and semi-finishing operations where runout control and vibration damping are critical.

This hydraulic chuck is suited for high-speed machining applications in both production and job-shop environments. Its C5 modular connection integrates with tooling systems that accept the C5 interface standard. The 85 mm projection (from gauge line to nose), 28 mm nose diameter, and 41 mm clamping depth make it appropriate for applications requiring extended reach into confined workpiece features. Through-coolant capability supports operations in ferrous and non-ferrous materials where heat management is a priority. Typical applications include boring, reaming, and light milling with shanked tooling up to 20 mm.

Key Features

• C5 modular connection shank for repeatable, accurate tool changes
• 20 mm bore diameter accommodates a wide range of shanked cutting tools
• Balanced to 28,000 RPM for high-speed spindle compatibility
• Through-coolant design directs fluid to the cutting edge
• 85 mm projection provides extended reach for deep-feature machining
• 41 mm clamping depth ensures secure tool grip under load

Compatibility

Designed for use with machine tool spindles and modular tooling systems that accept the C5 modular connection interface. Compatible with shanked cutting tools with a 20 mm shank diameter.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician following the machine tool builder guidelines for modular tooling assemblies. Power down and lock out the machine spindle before mounting or removing the chuck. Use a calibrated torque wrench when tightening the modular coupling per the tooling system specification — do not overtighten by feel. Verify runout with a dial indicator after installation before returning the spindle to operation.