Sumitomo 54JA578 Grooving Insert CGA1504200 BNC30G Cbn

Product Description

The SUMITOMO 54JA578 is a single-end grooving insert designed for precision grooving and turning operations in demanding machining environments. Built to the CGA1504200 insert style, it features a cubic boron nitride (CBN) grade designated BNC30G, making it well-suited for hard turning applications where heat resistance and edge retention are critical. The insert delivers a 2.00 mm cutting width with a maximum depth of cut of 3.50 mm, and is screw-held for secure, repeatable positioning in compatible toolholders. It is configured for right-hand cutting and carries a 0.20 mm corner radius for controlled edge engagement on steel workpieces.

This insert is intended for machining steel workpieces, corresponding to primary workpiece material code H. It belongs to the GWB series and is built to ANSI and ISO 13399 standards, making it compatible with tooling systems designed around those specifications. Typical applications include OD grooving on hardened steel components in production turning environments. This is a single-use, non-multi-use insert rated for maximum depth of cut in the range of 3.00 mm to 4.00 mm, appropriate for tight-tolerance groove profiles requiring CBN edge performance.

Key Features

• Cubic boron nitride (CBN) insert material, grade BNC30G, for high-hardness steel machining
• 2.00 mm cutting width with 3.50 mm maximum depth of cut
• Right-hand cutting orientation, single-end configuration
• 0.20 mm corner radius for controlled groove geometry
• Screw-held insert mounting for rigid, repeatable clamping
• Compliant with ANSI and ISO 13399 standards; ANSI code CGAR1504200

Compatibility

Designed for use in GWB series toolholders accepting CGA-style inserts with a 15.88 mm inscribed circle. Compatible tooling must support screw-held CGA insert mounting. Intended for right-hand cutting setups on steel workpieces per primary workpiece material code H.

Installation Notes

This insert is installed and serviced by qualified CNC machinists or tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the appropriate torx or hex key to tighten the clamping screw to the toolholder manufacturer's specified torque; do not overtighten, as CBN inserts are brittle and susceptible to edge chipping under excessive clamping force. Inspect the insert seat and clamping screw for wear or debris before seating the insert.