Case example: Modular design of automatic spraying machine for mobile phone shell, including clamping, on-line, dust removal, dehumidification, primer, topcoat, UV curing, off-line and packaging complete production line, central centralized control system, which can control various parameters of wind pressure, temperature, humidity, speed, UV power and spray gun in real time. The line adopts special aluminum guide rail, which has small conveying resistance, stable operation and flexible and stable rotation. The spray gun adopts imported low pressure and high atomization paint-saving spray gun. Using far infrared heater to heat, saving energy. 2. If your products are various, irregular in shape and have low surface requirements, you can spray them manually or electrostatically. Buy a set of plastic spraying equipment: air pump, plastic spraying gun, wind belt, dust removal equipment, etc. The total price is around 6000-8000, depending on which brand you choose. Our company uses Ding Shuang brand hand-sprayed plastic. A set costs more than 6800 yuan, but this quotation does not include dust removal equipment. I hope my answer is helpful to you, it's all my own experience!