Sandvik Coromant 5730121 ER25 Collet Chuck C6 Shank

Product Description

The SANDVIK COROMANT 5730121 is an ER25 collet chuck designed for modular connection tooling systems used in CNC machining centers and milling applications. It accepts ER25 collet series tooling and features a C6 modular connection shank for rigid, repeatable mounting in compatible tooling systems. The chuck projects 5.1181 inches from the connection face, with an overall length of 6.6142 inches and a nose diameter of 1.6535 inches. Through-coolant capability delivers cutting fluid directly to the cutting zone, extending tool life and improving chip evacuation. The assembly is balanced to 20,000 RPM, making it suitable for high-speed machining operations. Actuation is via wrench for consistent clamping force. Total unit weight is 4.2 pounds.

This collet chuck is intended for use in production machining environments where high spindle speeds, precise runout control, and through-coolant delivery are required. Typical applications include finish milling, drilling, and reaming operations in aerospace, automotive, and general metalworking shops. The C6 modular connection shank integrates with compatible modular tooling interfaces, allowing fast changeover without removing the base tool from the machine spindle. It is installed and set up by CNC machinists and tooling technicians.

Key Features

• ER25 collet system accepts the full range of ER25 collet sizes for versatile tool clamping
• C6 modular connection shank provides rigid, repeatable mounting in compatible modular interfaces
• 5.1181 inch projection suitable for extended reach applications
• Through-coolant capable for direct coolant delivery to the cutting edge
• Balanced to 20,000 RPM for high-speed machining compatibility
• Wrench actuated for controlled, consistent collet clamping torque

Compatibility

Designed for use with C6 modular connection tooling systems that accept ER25 collet chucks. Compatible with the ER25 collet series. Consult the machine tool and tooling system documentation to confirm interface compatibility before installation.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician. Before mounting or removing the chuck, ensure the machine spindle is fully stopped and the machine control is in a safe state. Use the appropriate wrench and follow the tooling system manufacturer torque guidelines for the C6 modular connection interface. Inspect the collet, chuck bore, and seating surfaces for contamination or damage before each use to maintain runout accuracy and clamping integrity.