Cryomill - the perfect mill for cryogenic grinding - RETSCHThe CryoMill is tailored for cryogenic grinding. With its liquid nitrogen cooling system the Cryomill keeps the temperature at -196 °C. Read more.cryo grinding machinery,Cryogenic Grinder (Liquid Nitrogen Cooling)Jan 15, 2016 . Zhangjiagang Techno Machinery Co.,Ltd. is specialized in manufacturing and exporting different kinds of plastic extrusion and plastic recycling.