The IM4000Plus Ion Milling System utilizes a broad, long-energy Ar+ ion beam milling method to produce wider, undistorted cross-section milling or flat milling, without applying mechanical stress to the sample.

The Hitachi IM400Plus Ion Milling system provides two milling configuration in a single instrument.

Previously two separate systems were needed to perform both cross section cutting (E-3500) and wide-area sample surface fine polishing (IM3000), but with Hitachi's IM400Plus, both applications can be run within the same machine.