Cast iron machining can be tricky, with issues like heavy tool wear, extreme burr formation and breakouts on workpiece edges potentially jeopardising efficiency. This is where the milling cutters in
Ceratizit's Maximill – S-Power series excel. With a high tooth count and double-sided indexable inserts, the system offers optimal performance and a highly stable, low-vibration construction. What is more, an innovative double wedge clamp ensures that the indexable inserts are easy to use and securely attached.
Machining cast iron components can represent a huge challenge for many fabricators, with issues like burr formation and breakouts on the workpiece edges forcing many users to settle for low feed rates. This unnecessarily extends production times and can cause efficiency to be neglected.
Robert Frei, technical product manager at Ceratizit, said: “With the MaxiMill – S-Power, it is a different story. Its optimal number of cutting edges (12 teeth with a dia of 63mm) and the positive cutting edge design not only enables higher feed rate values, but improves the surface quality and reduces burr formation. Any manufacturer that machines braking systems or mounting surfaces of high-performance motors are among those that will benefit from the enhanced performance of the new milling system.”
The milling cutters in the MaxiMill – S-Power series have an impressive number of cutting edges. The setting angle of 88deg enables a high tooth count and small chip spaces, while double-sided indexable inserts with eight actual cutting edges made from selected substrates and with Dragonskin coatings ensure high performance with a smooth cutting action. The sturdy construction with robust insert seat and double wedge clamp guarantees a secure hold and high axial and radial run-out accuracy.
Optimal clampingThe wedges are fitted with anti-twist protection and there are separate clamping wedges for each holder diameter, in order to ensure optimal clamping. Furthermore, the double-sided wedge clamping makes it easy to quickly and accurately change inserts as there is a single screw for each double wedge.
The MaxiMill – S-Power milling cutters are available in standard diameters of Ø56 to Ø125. The setting angle of 88deg permits a maximum number of cutting edges, and the indexable inserts are peripherally ground for close tolerances and a high surface quality. The indexable inserts are thicker than conventional inserts, which makes them extremely sturdy.
MaxiMill – S-Power complements the existing face milling systems from Ceratizit and is ideal for cast iron components made from GJS, GJV and GJL. A maximum depth of cut of around 8mm and reduced feed rate values between 0.08 and 0.15mm minimises breakouts on the casting wall, while maintaining high efficiency thanks to the high number of teeth.
The range of indexable inserts includes ISO P/K with cutting edge geometry M and offers corner radii of 0.4, 0.8 and 1.2mm. The grades include CTPK220, CTCP230 and ceramic.