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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.
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Sku
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Name
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Welding wire | ∅ Wire (mm) | Setting | Material |
Availability
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In stock Small amount available On order |
PU
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Price / Piece
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Quantity* | |
|---|---|---|---|---|---|---|---|---|---|---|
| 74251 | Feed Roll 30mm 1.4/1.6+2.0/2.4 for cored wire | cored wire | 1.4/1.6 + 2.0/2.4 | gear adaptor | hardened steel |
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1
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31.05 |
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| 117089 | Feed Roll insulated 30mm 1.4/1.6+2.0/2.4 for cored wire | cored wire | 1.4/1.6 + 2.0/2.4 | - adaptor- special gear adaptor | hardened steel |
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1
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31.05 |
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| 137010 | Feed Roll with keyway 37mm 1.4/1.6+2.0/2.4 for cored wire | cored wire | 1.4/1.6 + 2.0/2.4 | motor shaft | hardened steel |
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1
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35.90 |
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| 77009 | Feed Roll 37mm 1.4/1.6+2.0/2.4 for cored wire | cored wire | 1.4/1.6 + 2.0/2.4 | gear adaptor | hardened steel |
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1
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32.50 |
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| 140010 | Feed Roll with keyway 40mm 1.4/1.6+2.0/2.4 for cored wire | cored wire | 1.4/1.6 + 2.0/2.4 | motor shaft | hardened steel |
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1
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36.90 |
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| 140109 | Feed Roll 40mm 1.4/1.6+2.0/2.4 for cored wire | cored wire | 1.4/1.6 + 2.0/2.4 | gear adaptor | hardened steel |
|
1
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33.40 |
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| 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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1
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37.55 |
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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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