Gypsum Powder Production Line 1. Types: The main equipments can be divided into three types: Air-dry Rotary Calcining Room style; Popper Style and Hot Oil Boiler Style 2. Fuel: Coal, Gas and Heavy Oil 3. Capacity: From 30 thousand tons to 200 thousand tons per year. 4. Usage: The Powder is used for making Gypsum, Gypsum Board, Lime wash Gypsum, Glue Connection Gypsum, Caulking Gypsum, Gypsum Block.