They are available in several sizes to suit most industrial applications. They range in size from 6mm to 90mm or large.
Random packing materials were made of ceramic. The use of ceramic has declined because of its brittleness, but it still is used in some applications that require strong corrosion resistance.
Random packing uses a random distribution of small packing materials to assist in the separation process, while structured packing uses larger, fixed packing structures.
To install this type of packing, materials are dumbed into columns and are allowed to settle, and are collected randomly in the packaging bed inside the collection container. Then the liquid to be separated flows through the materials.