Sandvik Coromant 5725100 Ceramic Turning Insert CNGA432T0820

Product Description

The SANDVIK COROMANT 5725100 is an uncoated ceramic turning insert designed for precision metal cutting operations on CNC lathes and turning centers. Manufactured to ISO code CNGA 12 04 08T02520 6190, this insert features an 80-degree diamond shape (Style CNGA) with a 0 degree relief angle, a 1/2 inch inscribed circle, and a 1/32 inch corner radius. Carrying manufacturer grade 6190, the ceramic substrate is suited for high-speed, hard-part turning applications where heat resistance and wear performance are priorities. It is installed by machining professionals and tooling technicians in production and job-shop environments.

This insert is intended for hard turning and high-speed finishing applications on ferrous materials such as hardened steels and cast irons. The CNGA style with clamp and pin holding method makes it compatible with standard CNGA toolholders. The A-style chip breaker geometry supports controlled chip formation during finishing and semi-finishing passes. Typical applications include bearing races, spindle components, and other hardened precision parts where tight tolerances are required.

Key Features

• Uncoated ceramic insert grade 6190 for high-speed hard-part turning
• 80-degree diamond insert shape with CNGA style designation
• 1/2 inch inscribed circle with 0.4762 inch insert length
• 1/32 inch corner radius for controlled surface finish
• A-style chip breaker geometry for finishing and semi-finishing
• Clamp and pin holding method for secure toolholder engagement

Compatibility

Designed as an OEM-style replacement ceramic turning insert for use with standard CNGA-style toolholders accepting a 1/2 inch inscribed circle, size code 432 insert.

Installation Notes

Installation is performed by qualified machining technicians or CNC tooling specialists. Power down and lock out the machine before indexing or replacing inserts. Use appropriate insert seating tools and verify the clamp and pin are fully engaged and torqued per the toolholder manufacturer specifications before resuming cuts. Ceramic inserts are brittle and should not be subjected to interrupted cuts or heavy shock loads unless confirmed suitable by the toolholder and insert manufacturer documentation.