Looking for a used or new machine tool?
1,000s to choose from
Machinery-Locator
Hurco MPU Ceratizit MPU Mills CNC MPU 2021

Machinery-Locator
The online search from the pages of Machinery Market.

K&B 4-1250 HYDRAULIC SHEAR
capacity 4mm, length 1275mm, backgauge travel 1000mm, motor 5.5kw, PBG, BGA, front support, squaring
capacity 4mm, length 1275mm, backgauge travel 1000mm, motor 5.5kw, PBG, BGA, front support, squaring...

Be seen in all the right places!

Manufacturing Surabaya 2025 EMO 2025 Maktek Konya Advanced Engineering 2025 Maktek Smart Manufacturing Indonesia 2025 MACH 2026

Coromill MR80 launched for cutting steel and stainless steel

Posted on 29 Oct 2023. Edited by: John Hunter. Read 1183 times.
Coromill MR80 launched for cutting steel and stainless steelHalesowen-based cutting tool specialist Sandvik Coromant UK has launched the CoroMill MR80, a new milling concept which is primarily designed for challenging roughing operations in a wide range of face and profile milling applications in steel and stainless steel.

Sangram Dash, Sandvik Coromant’s global product application specialist for indexable milling tools, said: “CoroMill MR80 is a double-sided round insert concept with a higher number of inserts as compared to regular round insert cutters. It is ideally suitable for low depth of cut, up to 3mm, in face milling and profile milling applications in both steel and stainless steel.”

Originally designed for machining cast stainless components in the automotive sector, particularly turbochargers and exhaust manifolds, this product has been further developed to cater to steel milling applications, which require the security of a round cutting edge—such as the die and mould segment. As a result, CoroMill MR80 is a most capable and versatile milling concept, offering both higher productivity and economical machining in a wide range of operations, while never compromising on security.

Mr Dash continued: “The round cutting edge is considered to be the most secure edge for challenging materials as well as tough cutting conditions. Furthermore, the shim provides additional security for the cutter body, protecting against coining deformation and machining accidents, while also securing the insert in the tip seat by restricting micro-movements during cutting.”

An economical solution, CoroMill MR80 features double-sided inserts with 12 indexing possibilities when operated within a 3mm depth of cut. Mr Dash explained: “That means more parts for each set of inserts. Also, a higher number of inserts on a cutter body enables a higher table feed and increased productivity. On top of that, the overall security and reliability means less damage to the cutter body and inserts—which in the end helps to cut costs.”

Thanks to its lightweight cutting geometry, it is also possible to use CoroMill® MR80 as a problem-solver in difficult machining situations—even at long overhangs.

Mr Dash added: “Often automotive cast stainless components, due to their intricate shapes, are mounted on a fixture that may not be suitable for higher cutting loads”, and often in die and mould the cutter must go deep into the mould cavity, mounted on a long adaptor. In both cases the cutting forces must be limited, so that vibration can be avoided. Even if CoroMill MR80 is a double-sided negative concept, it works with fairly low cutting forces and is a suitable solution for such applications.

”The CoroMill MR80 assortment offers cylindrical and Arbor cutter bodies, with diameters from 32 to 100 mm, 3–12 cutting teeth, even pitch, and shim-protection. All cutter bodies feature internal coolant supply. The double-sided E-L50 inserts offer true and easy indexing (6 + 6), with a 3mm recommended depth of cut.”