Disclosed is a device (10) for producing cross-finned pipes, which exhibits molding cheek halves (12) lying adjacent to each other along a common molding segment and forming a molding channel (18) in-between the latter. A stationary linear guiding device (42) is provided along the molding segment in order to guide the molding cheek halves (12). Said device exhibits an elongated central sliding body (44), preferably made of a sliding metal alloy, and two guiding oil-lubricated bodies (46) placed laterally adjacent to the sliding body (44), said bodies being made preferably of an abrasion-resistant metal.