First of all, according to the size of the work, you can use gun heads with different calibers. Generally speaking, you can use a gun head with a diameter of 5-6 mm for a small area. If you have a large area, you can use a gun head with a caliber of 6 mm or more. Due to the different types of paint, its specific gravity is also different. If the specific gravity is large, the wind pressure can be increased, but the wind pressure must not exceed the strength of the electromagnetic field. The electrostatic generator can not only be used to spray paint, but also can replace high-frequency spark testers to solve construction problems such as plastic linings, and can also be used to spray cement and spray plastics. The above are the matters needing attention when the electrostatic automatic spraying equipment operates the machinery. Experts said that in order to improve the efficiency of electrostatic spraying, two or more spray guns are often used for spraying at the same time. At this time, because the paint mist with the same charge repels each other and affects the quality of the coating film, the distance between the two spray guns is at least 1 meter. What needs to be reminded is that safety is the first and operation is the second. No matter what kind of operator you are, please know that cautiously operating the electrostatic sprayer of the painting equipment is the prerequisite to prevent some dangers. As long as the distance between the workpieces does not collide with each other, the smaller the distance, the better.