Sandvik Coromant 5853447 Milling Insert S40T Round Carbide

Product Description

The SANDVIK COROMANT 5853447 is a round solid carbide milling insert in grade S40T, designed for use in indexable milling cutters operating on difficult-to-machine materials. Carrying an ANSI and ISO designation of R300-1340E-PL S40T, this insert features a CVD-applied multilayer coating of TiCrN, Al2O3, and TiN for heat resistance and extended tool life. The insert has a 0.5000-inch inscribed circle, a 0.1563-inch thickness, and a 0.2500-inch corner radius. It is a single-sided, neutral-hand insert with a positive rake angle of 10 degrees and a rounded cutting edge style, offering 6 usable cutting edges per insert. Installation and changeover are performed by licensed machinists or tooling technicians in precision machining environments.

This insert is engineered for milling stainless steel, superalloys, and titanium workpiece materials, corresponding to ISO material groups M and S. It belongs to the R300 series and is compatible with the RA300 cutter series. The PL chip breaker geometry supports stable cutting and chip control at the cutting depths this insert is rated for. Typical applications include face milling, shoulder milling, and profile milling operations on CNC machining centers in industrial production and job-shop environments where ISO M and S materials are the primary workpiece. Maximum depth of cut is 0.1252 inches (3.18 mm).

Key Features

• Round insert shape with 6 cutting edges for maximum indexing value per insert
• CVD multilayer coating: TiCrN, Al2O3, TiN for thermal barrier and wear resistance
• Positive rake angle (10 degrees) reduces cutting forces on work-hardening alloys
• PL chip breaker geometry for controlled chip evacuation in stainless and superalloy cuts
• Screw-held mounting for repeatable seating and fast indexing
• Meets ANSI and ISO standards; catalog designation R300-1340E-PL S40T

Compatibility

Compatible with the RA300 cutter series. ANSI and ISO code R300-1340E-PL S40T. Insert size code 1340, Series R300. Rated for primary workpiece materials stainless steel, superalloys, and titanium (ISO material codes M and S).

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate Torx or hex key as specified by the cutter body manufacturer for the insert clamping screw — do not overtighten or substitute fasteners. Inspect the cutter pocket and seating surface for debris or damage before seating a new insert.