MACAN nuts are sealing nuts for machine tools that perform very difficult machining operations using ER collets.  Made from aeronautical material, they are used for machining castings in steel alloys, light alloys, titanium alloys, stainless steels, chrome nickel cobalt titanium alloys. The main use of this nut is for chip control during the removal activity performed by the machine tool to generate a profile. The technological solutions adopted by this ring nut prevent tool breakage due to swarf, increase tool life, and in many cases allow cutting parameters to be optimised and implemented, guaranteeing a quick return on investment. The nut allows the coolant to flow out of the tool through the holes on the inside of the tool, as well as through the holes on a flange to create coolant jets on the outer cutting edges. What makes this nut unique is that the flange is free to rotate independently of the spindle and nut components.

This innovation allows the external jets to make the flange rotate like a turbine, the rotation speed of which can be varied according to requirements and the coolant pressure at the flange inlet. The adjustable rotation of the flange is capable of generating a coolant ring and completely enveloping the tool, its perfect adherence of the coolant, protects the tool cutting edges during machining, keeps swarf away from the cutting edge area, and provides optimum cooling of the workpiece and tool.

The perfect design of the nut, with no milling for clamping the collet, the free flange, allows the nut to be well balanced and allows increased cutting speed and a high. spindle speed during machining. Excellent for machining on CNC transfers, milling machines, machining centres, even if equipped with standard coolant system.