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Technical Specification
Straight answers to the questions people ask most when choosing and using a separate-feeder three phase MIG welder package.
A separate MIG welder has the power source and the wire feeder as two units joined by an interconnecting cable. The power source stays on the floor or a trolley, and the feeder sits near the work, carrying the wire spool and the torch.This gives a shorter, lighter torch cable, smoother wire feeding and much more reach around large fabrications than a compact machine that has everything in one case.
Choose separates if you weld large workpieces, work at a distance from the power source, use heavy-duty settings or weld all day in a production setting. They generally have a higher current rating and a stronger duty cycle than compact machines.Compact machines are simpler and more portable, so they suit smaller shops and lighter work. Think about the size of the work, how far you need to reach and how much welding you do.
Longer cables give more reach but can affect performance if they exceed what the system is designed for. The maker will state the lengths that are permitted, so use only what the manual allows.Avoid coiling spare cable tightly. Keep connectors clean and fully tightened, and route the cable so it is not crushed, kinked or pulled over sharp edges.
These machines are normally three phase and need a supply of the voltage on the data plate, usually 400 volts in the UK, with a correctly rated plug, cable and protective devices.Have a competent electrician install or check the supply. If you want to use a generator, check the manufacturer's advice first, because an undersized or poor quality supply can cause faults.
