The resin coating apparatus according to the present invention comprises: a conveying unit for conveying the seated reinforcing bar along a first direction, which is one of the extending directions of the reinforcing bar; a first heat treatment unit for heating the reinforcing bars transferred by the conveying unit; a second heat treatment unit that is spaced apart from the first heat treatment unit and further heats the reinforcing bar heated by the first heat treatment unit; And by spraying a resin to the reinforcing bar heated by the second heat treatment unit includes a coating unit for coating the coating formed of the resin.
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