Sandvik Coromant 5853511 Milling Insert S40T Solid Carbide

Product Description

The SANDVIK COROMANT 5853511 is a solid carbide milling insert designed for use in R390 series face and shoulder milling cutters. Carrying the S40T manufacturer grade, this insert features a CVD-applied multilayer coating of TiCrN, Al2O3, and TiN for wear resistance and thermal stability during interrupted and continuous cuts. The parallelogram-shaped, single-sided insert has a positive rake angle of 17 degrees and a corner-rounded cutting edge style with a 0.0315-inch corner radius. It is screw-held and right-hand oriented. With two cutting edges per insert and a maximum depth of cut of 16.00 mm, it is suited for productive material removal in demanding applications. Licensed machinists and CNC tooling technicians handle installation in production or job-shop environments.

This insert is engineered for machining stainless steel, superalloys, and titanium — workpiece material codes M and S. The ANSI and ISO designation is R390-17 04 08M-PM S40T, placing it in insert size code 170408 with a PM chip breaker geometry. The R390 cutter series is widely used in aerospace, medical, and energy sector machining where difficult-to-cut materials demand a stable, high-positive insert geometry. The S40T grade targets M40 and S35 material classifications, making it a practical choice for stainless steel finishing and roughing operations as well as superalloy and titanium profiling passes.

Key Features

• CVD multilayer coating: TiCrN, Al2O3, and TiN for heat and wear resistance
• Positive 17-degree rake angle reduces cutting forces on difficult materials
• Two cutting edges per insert — single-sided, right-hand orientation
• PM chip breaker geometry optimized for stainless steel and superalloy milling
• Maximum depth of cut: 16.00 mm (0.6299 inches)
• Conforms to ANSI and ISO standards; catalog designation R390-17 04 08M-PM S40T

Compatibility

Designed for use with Sandvik Coromant R390 series milling cutter bodies. Insert size code 170408 with screw-holding method. ANSI and ISO code R390-17 04 08M-PM S40T. Compatible cutter series: R390.

Installation Notes

Installation is performed by CNC tooling technicians or machinists following the cutter body manufacturer torque and seating specifications for the R390 screw-clamp system. The spindle must be fully stopped and locked out before changing inserts. Inspect the cutter pocket seat and clamping screw for damage or debris before seating a new insert. Do not mix insert grades or geometries within a single cutter body pass.