Introducing CoroMill® MR20 for controlled, stable profile milling

Cutting tool specialist Sandvik Coromant has launched its CoroMill® MR20, an indexable milling concept engineered to deliver stability, predictable performance and high metal removal rates across demanding materials and applications. Designed for manufacturers that require process security, CoroMill® MR20 brings both confidence and productivity to profiling and face milling operations, reports the company.

CoroMill® MR20 is a single-sided round-insert concept for ISO M, ISO S and ISO P materials. Its combination of security and versatility makes it suitable for pocketing and complex profiling in titanium and other HRSA materials used in aerospace, as well as in oil and gas components. The tool also excels in ISO P mould and die applications, delivering reliable roughing and semi-finishing performance. In ISO M materials, it handles heavy metal removal for pump and valve components with the high predictability and productivity these industries demand. CoroMill® MR20 is now Sandvik Coromant’s first-choice solution for these applications.

“Our goal while developing CoroMill® MR20 was to create a polyvalent cutter that offers the highest level of process security,” reveals Alvaro Ruiz, Global Product Application Specialist at Sandvik Coromant. “Customers machining high-value components need predictable, repeatable performance, which CoroMill® MR20 delivers.”

CoroMill® MR20 is engineered not only for performance but also for more sustainable machining. By enabling higher feed per tooth, the tool reduces the energy required during machining. Its long tool life means fewer inserts are consumed, lowering the overall carbon footprint associated with production.

“Increasing feed capability while extending tool life means fewer resources used and less waste generated,” confirms Alvaro. “It’s a win for productivity and for sustainability.”

An advanced tool design ensures superior resistance to fatigue and deformation, supporting repeatability and long cutter body life. The new integrated under-coolant system guarantees high performance, especially in long-chipping and difficult-to-machine material. One of the key innovations is the optimised insert seat design, where the large contact area between the insert and cutter body minimises micro-movement in support of stability.

The six-edged insert features a thick, robust body for bulk strength and edge-line security. Tight manufacturing tolerances promote gradual and predictable insert wear, supporting efficient, unmanned production, minimised scrap and maximised operational uptime.