Sandvik Coromant 5853424 Milling Insert S30T Carbide

Product Description

The SANDVIK COROMANT 5853424 is a round, solid carbide milling insert in grade S30T, coated with TiAlN via a PVD process. It belongs to the R300 series and is designed for face milling and shoulder milling operations where a positive rake geometry improves chip flow and reduces cutting forces. The insert features a 8.00 mm inscribed circle, a 2.78 mm thickness, and four cutting edges, maximizing the number of usable edges per insert. The PL chip breaker geometry supports stable cutting in demanding materials. It is installed by machinists and CNC tooling specialists in production and job-shop environments.

This insert is engineered for primary use on stainless steel, superalloys, and titanium workpieces, corresponding to ISO material groups M and S. These materials demand a tough, wear-resistant coating and a positive rake angle to manage heat and built-up edge. The R300-0828E-PL S30T designation follows both ANSI and ISO insert coding standards, making it straightforward to cross-reference in tooling catalogs. It is compatible with R300-series milling bodies used in medium to light-duty cutting passes where a maximum depth of cut of 4.00 mm applies.

Key Features

• Round insert shape with 360-degree included angle delivers consistent, omnidirectional cutting geometry
• S30T solid carbide substrate with TiAlN PVD coating provides heat and wear resistance in stainless steel and superalloy applications
• Positive rake angle of 15 degrees with PL chip breaker reduces cutting forces and improves chip evacuation
• Four cutting edges per insert lowers per-edge tooling cost
• Maximum depth of cut of 4.00 mm suits finishing and semi-finishing passes
• Neutral hand orientation allows use in both climb and conventional milling setups
• Screw-clamped single-sided insert for positive, repeatable seating in the pocket

Compatibility

This insert is compatible with the following cutter series as stated by the manufacturer: A10K, A12M, A16K, A20M, and R300 milling bodies. The ANSI and ISO catalog designation is R300-0828E-PL S30T.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist or CNC tooling technician. Always power down and lock out the machine spindle before accessing the cutter body. Use the correct Torx or hex key specified for the R300 cutter body to seat the screw clamp — do not overtighten or substitute fasteners. Inspect the pocket seat and screw thread for chips or damage before seating a new insert.