Sumitomo 19RBALF Turning Insert CNMG542EMU AC830P Carbide

Product Description

The SUMITOMO 19RBALF is a solid carbide turning insert designed for metal cutting operations on CNC and manual lathes. Manufactured to ANSI code CNMG542EMU and ISO code CNMG160608N-MU, this insert features an Al2O3 (aluminum oxide) CVD coating applied over a solid carbide substrate for thermal resistance and wear protection at elevated cutting speeds. The EMU chip breaker geometry promotes positive rake cutting action, helping to control chip formation and reduce cutting forces. A neutral hand orientation makes this insert compatible with standard CNMG-style toolholders. It is intended for machinists and tooling specialists working in production or job-shop turning environments.

The 19RBALF is suited for general turning applications across a broad range of workpiece materials. The AC830P manufacturer grade and secondary workpiece material codes M and P indicate suitability for machining carbon steels, alloy steels, and stainless steels under moderate to high cutting conditions. The insert's universal secondary material designation supports versatility across varied production runs. This insert is sold individually per package with a minimum order quantity of 10 units, making it appropriate for toolroom restocking and production-floor replenishment.

Key Features

• Solid carbide substrate with CVD-applied Al2O3 coating for thermal stability and extended tool life
• CNMG insert style with 80-degree diamond shape for strong cutting edge geometry
• EMU chip breaker with positive rake angle of 4 degrees for improved chip control
• Neutral hand orientation fits standard CNMG-compatible toolholders
• Dual holding method compatibility: clamp and pin retention
• Meets ANSI and ISO 13399 standards for consistent tooling interoperability

Compatibility

Designed as a replacement turning insert for CNMG-style toolholders accepting a 5/8-inch inscribed circle insert with a 1/4-inch thickness and 0.25-inch hole diameter, conforming to ANSI code CNMG542EMU and ISO code CNMG160608N-MU.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the machine in a locked-out, de-energized state before any insert change. Seat the insert fully against the toolholder pocket seat and confirm the clamp and pin are properly engaged before resuming cutting. Inspect the insert seat and clamp for wear or debris that could affect seating accuracy. Follow the toolholder manufacturer's torque guidelines for clamping screws.