WELDING MACHINE

摘要

An internal pipe welding machine (10) including at least one welder assembly (50) having a welder torch head (741) mounted on a welder body, the welder assembly (212) being rotatable about an associated pipeline axis relative to a chassis of the internal pipe welding machine, the stick-out distance (K) between the welding torch head and a joint to be welded being adjustable by linear movement of the torch head.