PURPOSE: A spraying coater suitable for high viscosity liquid paints, consisting of a a vertically and freely movable base fitted spray gun with a specific compressed air jetting mechanism and a movable truck with a reciprocating pressure pump.
CONSTITUTION: The reciprocating pressure pump 70 mounted on the base 76 is vertically moved by operating the air cylinder 80 and the pump cylinder 82 is inserted into the liquid paint container 58 on the supporting base 72. Then, the movable truck 4 is carried to coating site and compressed air is sent from the line 84 to operate the pump, whereupon a liquid paint sent by pressure from the supply conduit 122 is flowed into the path 128 of the spray gun 2 by a fixed pressure through the opening and closing controller 164. When compressed air from the line 158 is sent into the jetting mechanisms 142 and 148 through the opening and closing controller 164, a high viscosity paint of more than 100 poises is jetted from the plural jets 152 and 154 and atomized sufficiently. Thus, finely atomized paint can be sprayed onto subjective without scattering from the nozzle 124.