Sumitomo 19T2283 CNMA643 AC4015K Carbide Turning Insert

Product Description

The SUMITOMO 19T2283 is a CNMA643 solid carbide turning insert graded AC4015K, designed for precision metal-cutting operations on CNC and manual lathes. This insert features a CVD-applied Al2O3 and TiCN multilayer coating under the proprietary Super FF designation, delivering thermal resistance and wear life suited to high-speed interrupted and continuous cuts. The 80-degree diamond shape with a neutral cutting hand provides versatility across a wide range of turning applications. With a 3/4 inch inscribed circle and a 3/64 inch corner radius, the 19T2283 is sized for medium to heavy stock removal on production turning centers. Licensed machinists and CNC setup technicians are the primary installers of this insert.

This insert is optimized for machining cast iron workpieces, consistent with its K15 material grade classification. The negative rake geometry and zero relief angle (clearance code N, tolerance code M) make it well suited to rigid setups on production lathes handling cast iron components such as brake rotors, pump housings, and engine blocks. The neutral cutting direction allows use on both right-hand and left-hand tool holders without restriction. It is compatible with pin and screw insert holding methods per ANSI and ISO 13399 standards.

Key Features

• CVD-coated Al2O3 and TiCN multilayer finish under the Super FF proprietary designation for extended tool life in cast iron cutting
• 80-degree diamond insert shape (shape code C) provides a strong cutting edge geometry for medium to heavy turning passes
• Neutral cutting hand accepts use in both right-hand and left-hand toolholders
• Negative rake, zero-degree relief angle geometry suited to rigid, high-force turning setups
• Pin and screw holding method compatibility for secure seating in standard CNMA-style pockets
• Conforms to ANSI CNMA643 and ISO CNMA190612 standards for broad toolholder interchangeability

Compatibility

Designed as an OEM-style replacement insert for CNMA643-pocket turning toolholders conforming to ANSI and ISO 13399 standards. ISO code CNMA190612 confirms fitment in metric-dimensioned CNMA pockets. No specific machine or toolholder model compatibility was provided in the product data.

Installation Notes

Insert installation and indexing should be performed by qualified machinists or CNC tooling technicians with the machine powered down and the spindle locked. Use the appropriate torque wrench and pin key for the specific clamping screw to avoid over-torquing the insert pocket. Inspect the insert pocket and shim seat for chips or debris before seating a new insert. Confirm cutting direction and toolholder hand before engaging the first cut.