Feed Rolls

Feed rolls - for reliable wire feed

It is important that the feed rolls are matched to the welding additive. They are an integral part of the wire feed unit and are responsible to ensure that the welding wire is correctly fed through the hose assembly.

Therefore, the feed rolls in the MIG/MAG welding machine must always be selected to match the wire and, if necessary, must be turned or even replaced. Only the right type ensures that the wire can be fed without problems.

Items 1-24 of 32

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Welding wire ∅ Wire (mm) Mounting Material
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img 115976
Feed Roll 30mm 1.0+1.0 made of special steel, for steel wire steel 1.0 + 1.0 axle hardened High-Speed steel
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img 71016
Feed Roll 30mm 1.0+1.0 made of special steel, for steel wire steel 1.0 + 1.0 gear adaptor hardened High-Speed steel
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img 74912
Feed Roll 30mm 1.0/1.2+1.0/1.2 made of special steel, for cored wire cored wire 1.0/1.2 + 1.0/1.2 gear adaptor hardened High-Speed steel
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img 74291
Feed Roll 30mm 1.0/1.2+1.4/1.6 made of special steel, for cored wire cored wire 1.0/1.2 + 1.4/1.6 gear adaptor hardened High-Speed steel
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img 115977
Feed Roll 30mm 1.2+1.2 made of special steel, for steel wire steel 1.2 + 1.2 axle hardened High-Speed steel
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img 71017
Feed Roll 30mm 1.2+1.2 made of special steel, for steel wire steel 1.2 + 1.2 gear adaptor hardened High-Speed steel
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img 117434
Feed Roll 30mm 1.2+1.2 made of special steel, for cored wire cored wire 1.2 + 1.2 gear adaptor hardened High-Speed steel
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img 71050
Feed Roll 30mm 1.2+1.4mm made of special steel, for cored wire cored wire 1.2 + 1.4 gear adaptor hardened High-Speed steel
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img 117433
Feed Roll 30mm 1.2+1.2 made of special steel, for cored wire cored wire 1.2 + 1.2 axle hardened High-Speed steel
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img 74114
Feed Roll 30mm 1.0+1.0 made of special steel, for steel wire steel 1.4 + 1.6 gear adaptor hardened High-Speed steel
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img 74252
Feed Roll 30mm 1.4/1.6+2.0/2.4 made of special steel, for cored wire cored wire 1.4/1.6 + 2.0/2.4 gear adaptor hardened High-Speed steel
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img 74113
Feed Roll 30mm 1.0+1.0 made of special steel, for steel wire steel 1.6 + 1.6 gear adaptor hardened High-Speed steel
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img 118593
Feed Roll 30mm 1.6+2.0 made of special steel, for steel wire steel 1.6 + 2.0 axle hardened High-Speed steel
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img 119210
Feed Roll 30mm 1.6+1.6 made of special steel, for cored wire steel 1.6 + 1.6 axle hardened High-Speed steel
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img 117389
Feed Roll 30mm 2.8+2.8 made of special steel, for steel wire steel 2.8 + 2.8 axle hardened High-Speed steel
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img 74192
Feed Roll 30mm 2.8/3.2 made of special steel, for cored wire cored wire 2.8/3.2 gear adaptor hardened High-Speed steel
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img 117338
Feed Roll 30mm 2.8/3.2 made of special steel, for cored wire cored wire 2.8/3.2 axle hardened High-Speed steel
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img 118012
Feed Roll 37mm 1.6+1.6 made of special steel, for steel wire steel 1.6 + 1.6 gear adaptor hardened High-Speed steel
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img 100300
Feed Roll 37mm 2.0+2.4 for cored wire cored wire 2.0 + 2.4 gear adaptor hardened High-Speed steel
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Feed Roll 37mm 2.8 for cored wire cored wire 2.8 gear adaptor hardened High-Speed steel
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img 100199
Feed Roll 37mm 3.2 for cored wire cored wire 3.2 gear adaptor hardened High-Speed steel
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img 140250
Feed Roll 40mm 1.0+1.0 made of special steel, for steel wire steel 1.0 + 1.0 gear adaptor hardened High-Speed steel
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Feed Roll 40mm 1.2+1.2 made of special steel, for steel wire steel 1.2 + 1.2 gear adaptor hardened High-Speed steel
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Feed Roll 40mm 2.4+2.4 made of special steel, for cored wire cored wire 2.4 + 2.4 gear adaptor hardened High-Speed steel
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Wire feeder as a source of failure

Every welder knows it: You are in the middle of the welding process and the wire feeder starts to stutter. Mostly it is small things that lead to this behaviour. Here are the most important sources of error and the solution to remedy the situation:

Incorrect wire feed speed setting

If you can manually adjust the wire feed speed on your welding machine, you should check whether the speed has been set too high. Use small steps to find the right speed for the welding current, avoid large steps on the potentiometer.

Incorrect wire feed rolls

Wire feeding problems can often be solved with the right feed rolls. It is often forgotten that for a 0.8 welding wire, a 0.8 feed roll must also be used. For aluminium or cored wires, special feed rolls must also be used, depending on the type of device.

Dirty feed rolls

Grease or oil on the feed rolls not only considerably impairs the ability to transport the wire, they are also manoeuvred into the welding seam and cause contamination there and correspondingly poorer welding results. Important: always ensure that the feed rolls are clean.

Broken feed rolls or wire inlet

The pressure and feed rolls of the wire feeder are wearing parts. If the grooves of the feed rolls are ground out too deeply over time or if grooves have been ground into the upper pressure rolls, this will lead to the problems mentioned above. It is best to replace all feed rolls at the same time in order to guarantee an even feed. Otherwise, depending on the condition of the parts, the welding wire will either jam or slip through. Attention should also be paid to the first wire feed (from the welding wire coil into the feed) as well as any capillary or guide tubes that may have been fitted: Over time, they can cause unsightly jamming of the wire.

We are pleased to help you

Mechafin AG, based in Geroldswil, a suburb of Zurich, was founded in 1965 by Otto Schoch. It specialised early on in the development and production of shielding gas welding torches and wire feeders for demanding tasks. "The increased requirements of our customers are our daily challenge and motivation."

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