Sandvik Coromant 5730069 ER20 Collet Chuck C5 Modular

Product Description

The SANDVIK COROMANT 5730069 is an ER20 collet chuck designed for modular connection tooling systems using a C5 shank interface. It accepts ER20 series collets and delivers a projection of 2.1654 inches from the shank face to the collet nose. The chuck is balanced to 28,000 RPM, making it suitable for high-speed machining applications where runout and vibration control are critical. Through-coolant capability routes cutting fluid directly to the cutting zone, extending tool life and improving chip evacuation. Installation is performed with a wrench-style actuator. This chuck is specified and installed by CNC machinists and tooling setup technicians in production machining environments.

This collet chuck is used in CNC machining centers equipped with modular tooling systems that accept a C5 modular connection shank. The ER20 collet system accommodates a wide range of cutting tool shank diameters within the ER20 collet range. The 2.1654-inch projection and 3.3465-inch overall length suit applications requiring moderate gage length with clearance for workpiece features. Typical use cases include milling, drilling, and reaming operations in both ferrous and non-ferrous materials where high-speed spindle performance and consistent clamping are required.

Key Features

• ER20 collet system with wrench-style actuator for secure clamping
• C5 modular connection shank for compatibility with modular tooling systems
• Balanced to 28,000 RPM for high-speed machining applications
• Through-coolant design routes fluid directly to the cutting zone
• Projection of 2.1654 inches and overall length of 3.3465 inches
• Nose diameter of 1.3268 inches for clearance in confined workpiece geometries

Compatibility

Designed for use in modular tooling systems accepting a C5 modular connection interface. Requires ER20 series collets, sold separately. Consult machine tool documentation to confirm C5 modular connection compatibility before installation.

Installation Notes

Installation and removal should be performed by a qualified CNC tooling technician or machinist. Power down and lock out the spindle before changing tooling assemblies. Use a calibrated torque wrench and the appropriate ER20 clamping nut spanner to seat the collet and retain the cutting tool per the toolholder manufacturer guidelines. Verify runout at the collet nose after assembly before returning the spindle to operation.