Sandvik Coromant 6255453 Hydraulic Tool Chuck C6 20mm

Product Description

The SANDVIK COROMANT 6255453 is a hydraulic tool chuck designed for precision metal-cutting applications on CNC machining centers and turning centers. It features a C6 modular connection shank, which interfaces with compatible tooling systems for quick, repeatable tool changes without loss of concentricity. The chuck accepts a 20 mm bore, delivers an 84 mm projection from the gauge line, and is balanced to 20,000 RPM, making it suitable for high-speed milling and drilling operations. Through-coolant capability allows cutting fluid to reach the tool tip directly, improving chip evacuation and extending tool life in demanding materials.

This hydraulic chuck is intended for use in production machining environments where runout control and vibration damping are critical. The hydraulic clamping mechanism distributes clamping force evenly around the tool shank, reducing micro-vibration compared to collet-style holders. Typical applications include finish milling, reaming, and drilling in automotive, aerospace, and general precision components. The 36 mm clamping depth ensures a secure grip on standard-length tool shanks within the 20 mm bore diameter.

Key Features

• C6 modular connection shank for fast, repeatable tool changes on compatible machining centers
• Hydraulic clamping mechanism provides even radial force for low runout and vibration damping
• Balanced to 20,000 RPM for high-speed cutting operations
• Through-coolant design channels fluid directly to the cutting zone
• 36 mm clamping depth secures standard shank tools in the 20 mm bore
• 50 mm nose diameter with 84 mm projection suits a wide range of reach requirements

Compatibility

Designed for use with C6 modular tooling interfaces on compatible CNC machining centers. Accepts tooling with a 20 mm shank diameter within a 36 mm clamping depth.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with modular tooling systems. Ensure the machine spindle and C6 receiver are clean and free of chips or debris before mounting. Disengage spindle drive and confirm the machine is in a safe, powered-down state before any toolholder exchange. Follow the machine tool manufacturer guidelines and applicable shop safety procedures when pressurizing the hydraulic clamping mechanism.