V Laboratory Mill 3100 er 3.1 2005.04.26 The LM 3100 is designed for grinding samples of grains, pellets, meals, feeds, and forages. The ground sample can then be used for analyses such as NIR, Falling Number, Glutomatic, Kjeldahl etc. The Laboratory Mill 3100 is a hammer type cyclone mill, built into a soundproof casing.