With its modular milling system, Frewitt has introduced a 3-in-1 process platform which combines not only the conical reduction of powders and granulates, but also the control screening and fine grinding in one machine. The concept was to put together a conical sieve mill with a rotor at medium RPM, a cylindrical sieve mill with a turning stator with lower RPM and the hammer mill with high RPM’s. The interface was the drive arm, which connects the entire drive and control system with the milling system electronically and mechanically. The control and operator interface design was completely reworked in order to increase the degree of automation, and to be able to integrate the PLC of the sieve mill into the higher-level system. This functionality of the three milling processes was not altered. The design of the hammer mill did receive a new mono-block housing and internal cabling. Thanks to the three, interchangeable mill heads, customers can quickly convert to new processes. Three different grinding methods can be used for grinding, fine grinding or controlled screening.
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