1. Suction type;
2. Self-flowing type;
3. Push-in type.
For low-viscosity paints, such as patterns, colorants, shellac paint, etc., the nozzle diameter can be 0.5mm-0.7mm when spraying; for ordinary viscosity paints, such as nitro paint, synthetic resin paint and small area spraying, nozzles can be used Spraying with a diameter of 1mm~1.5mm; for primers, intermediate coatings, and large-area spraying with high viscosity, you can use a nozzle diameter of 2mm~3mm for coating; such as putty, damping paint, etc. With high viscosity, you can use 3.5 mm-5mm nozzle diameter for painting.
