The drum coating machine is a device used to uniformly coat particles or sheet-like objects with film-forming materials, widely applied in industries such as pharmaceuticals, food, and fertilizers.

structural composition

• Host body and roller system: Typically a sealed pot-shaped vessel or rotating cylinder, equipped with deflector plates or agitators inside. For instance, the inner wall of the barrel in a fertilizer coating machine may be fitted with agitators to enhance particle tumbling.

• Drive unit: Includes motors, gear reducers, and support rollers, ensuring smooth rotation of the drum. The drum speed of some equipment is adjustable.

•Spray system: Composed of a coating solution tank, precision metering pump, spray gun, and its support, it is used to atomize and spray the coating solution onto the material surface.

• Hot air supply and exhaust system: Composed of high-efficiency filters, heaters, fans, air ducts, and exhaust fans, it achieves drying functionality and maintains an appropriate humidity and temperature environment within the pot.

•Control System: Modern drum coating machines are often equipped with a PLC control system, which allows for precise adjustment of parameters such as drum rotation speed, spray pressure and flow rate, hot air temperature and volume, etc.