The line for surface treatment of the metal press-in parts comprises of 6 in series exhausting booths with the roller tables and with a side outlet for a bar conveyer, which passes through a setting tunnel and drier. The transverse roller storage connects to the bar conveyer. Connecting fixture coating (primer and top coat) is carried out manually by a brush. The first box is equipped also with a spraying gun and a rotary table. Speed of a conveyer movement and speed of a rotary table is adjustable in range of 50÷100 %.