Mild Steel Rilon MIG MAG Wire Feeder

Details: Welding wire feeder units are used in combination with geared PMDC motor for MIG welding. It has series of rollers that pushes the wire out to the welding torch. On larger power MIG welders the wire feed unit can be separate. The large spool of wire should be held on with a torque nut. The nut should be tight enough to keep the spool from unravelling so as to avoid over-run (birds nesting) when trigger is released, but not so tight that the rollers can't pull the wire from the spool. The wire from the spool goes into a set of rollers that pull the wire off of the big roll, this then pushes the wire up to the torch to the tip ready for welding. We have a 2-roll feed system normally for smaller machines, this comprises of a bottom roller with grooves in and a top pressure roller which is flat and puts pressure on wire as set by tensioners to drive wire when the rollers turn. Also we have 4-Roll system which has two bottom rollers and two top rollers which give a more stable wire feed and is better at feeding softer alloy wires than a 2-roll system. Some wire feed units also have geared 4-roll systems which helps to regulate wire flow speed with great accuracy resulting in exceptionally smooth welds.