The latest generation of broad ion beam milling systems with improved milling speed. The IM4000PLUS Ion Milling System utilizes a broad, low-energy Ar+ ion beam milling method to produce wider, undistorted cross-section milling or flat milling, without applying mechanical stress to the sample. Additional capabilities such as the air protection system, low-temperature cold block, and LN2 cooling unit equipped versions are available for processing heat-sensitive materials or materials susceptible to oxidation. High-quality and damage-less cross-section or milled surfaces help to improve surface observation quality for microscopy imaging and analysis.