In the past 30 years, the coil pvd coating machine has been greatly developed, and the coating products are widely used in decoration, packaging, capacitors and other fields, and can be plated optical, electrical, electromagnetic, conductive and other films. The substrates used are PE, PET, PI, PP, OPP, BOPP, paper, foam and cloth.

Generally, the water content of plastic based film material is 1% to 2%, the water content of paper is larger, generally 5% to 7%, after coating drying, the water content is still 3%. Due to the high water content of the substrate, the coating chamber has developed from the initial single chamber to the current two-chamber or multi-chamber structure. The evaporation source can be resistive, inductive, electronic card and magnetron sputtering. The double-chamber structure is widely used, and its advantages are: (1) It can steam the paper substrate with large air discharge and ensure the coating quality. A large amount of gas given off by the paper is expelled from the winding chamber. Because the narrow gap between the winding chamber and the evaporation chamber is very small, the released gas is not easy to enter the evaporation chamber; (2) The single-chamber structure must be equipped with a large exhaust system to ensure the working pressure during evaporation, and the evaporation chamber in the two-chamber structure has a small amount of gas, and can be equipped with a small pump group, which reduces the equipment cost and saves energy; ③ The winding chamber and evaporation chamber are pumped separately, which can shorten the pumping time.
In daily use, the longest seen are metal tape winding pvd coating machine, packaging winding vacuum coating equipment, flexible electronic winding vacuum coating equipment, capacitor winding pvd coating machine, holographic anti-counterfeiting winding vacuum coating equipment, EB-PVD winding pvd coating machine, experimental winding pvd coating machine, plating substrate is not the same, The type of winding coating machine used is different, the design structure is different, the general design of pvd coating machine companies, generally understand the needs of customers, and then design customized equipment.