Sumitomo 19RJCCW Turning Insert DNMX432ESEW AC820P Carbide

Product Description

The SUMITOMO 19RJCCW is a solid carbide turning insert in the DNMX series, designed for precision external and internal turning operations on steel workpieces. It carries the AC820P manufacturer grade and features an aluminum oxide (Al2O3) coating applied via CVD process, providing high wear resistance and thermal stability at cutting temperatures. The insert has a 55-degree diamond shape (ANSI code DNMX432ESEW, ISO code DNMX150408N-SEW) with a neutral hand orientation and a positive rake angle of 13 degrees. A 0.0313-inch corner radius delivers a balance between edge strength and surface finish quality. Licensed machinists and CNC turning technicians install this insert in compatible toolholders for high-volume steel cutting applications.

This insert is intended for steel turning applications, classified under primary workpiece material code P. The DNMX series geometry with the ESEW chip breaker is suited for medium to finishing passes on carbon steels, alloy steels, and similar ferrous materials in both production and job-shop environments. The 0.5-inch inscribed circle and DNMX-style clamping via clamp and pin holding method make it compatible with standard DNMX-designated toolholders used on CNC lathes and turning centers. Relief angle is 0 degrees (clearance code N) with a tolerance code of M, which is standard for this insert class.

Key Features

• AC820P grade with Al2O3 CVD coating for extended tool life in steel cutting
• 55-degree diamond insert shape (code D) with ESEW chip breaker geometry
• Positive rake angle of 13 degrees reduces cutting forces on steel workpieces
• Neutral hand orientation for flexible toolholder mounting
• 0.0313-inch corner radius balances edge strength and surface finish
• Meets ANSI and ISO 13399 standards for insert identification and toolholder interchangeability

Compatibility

Designed for use in DNMX-style toolholders that accept a 0.5-inch inscribed circle, 3/16-inch thick diamond insert with clamp and pin holding. Conforms to ANSI code DNMX432ESEW and ISO code DNMX150408N-SEW for direct cross-reference to compatible toolholder specifications.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the turret is in a safe index position before seating or removing inserts. Secure the insert firmly using the clamp and pin method specified for the toolholder; do not overtighten the clamping screw beyond the toolholder manufacturer's recommendation. Inspect the insert pocket and locating surfaces for chips or debris before seating a new insert to prevent improper seating and premature edge failure.