The Loesche coal grinding mill range is divided into two serial types Small twin mills constructed to individual specifications LM 12 2 D to LM 20 2 D with table diameters from 1 200 to 2 000 mm Larger mills with two three and four rollers and modular struc tures LM 21 2 D to LM 43 4 D with table diameters from 2 100 to 4 300 mm