Oxford MULTIMIG HP413 portable MIG welder is a British made 400v heavy duty inverter based power source, simple to use, rugged, reliable and offer better welding performance than older transformer MIG welders. Faster welding with less down time, less cleaning up and lower power consumption. Welds steel, stainless, Duplex, hardox, aluminium and alloys, whatever metal you want, these are a real joy to use. Oxford welding machines have been made in the UK for over 60 years. They are known for simple rugged build quality, high reliability, long life span and excellent welding performance. We take pride in hand building every machine using the best quality components. Our Oxford MULTIMIG inverter range are built exactly the same way. These models provide welding performance on another level and offer you more than similar products on the market today. 

Every Oxford welding machine is offered with the following guarantees:
2 year warranty all items - except torch and regulator.
20 year minimum guarantee of spares availability

Key Features

•  Complete MIG/MAG power source with wire drive for 5kg spools at rear + reverse polarity standard.
•  Ready to plug in our OXFORD spool gun for even better aluminium welding.
•  Ready to plug in a TIG torch with switch & gas control with adjustable post flow.
•  Ready to plug in MMA welding leads - superb arc welding performance with up to 100M cables.
•  Ready to plug in our Oxford 4X 4 roll drive separate wire feeder for 15kg spools & up to 20M cables.
•  Infinitely variable weld power from 20A to max power with precision to 1A & 0.1V.
•  Digital display show set values prior to welding & precise values when welding.
•  Super smooth low spatter MIG welding with perfect welds & instant arc starts without popping.
•  Unique ARC TUNE control allows operator full control over welding characteristics from CV through to CC.
•  Unique ARC TUNE control - variable inductance - fine tune the arc precisely, dial out that spatter etc.
•  Reversible polarity, 2T/4T function, adjustable burnback, adjustable gas post flow (ideal for TIG).
•  Auto compensation for extension cables up to 100M & unstable or poor mains input supply.
•  Generator friendly with built in protection from over & under voltage, over temp, over current, etc.
•  High efficiency design & 12-16W standby power reduces running costs & helps the environment.
•  High duty cycles to keep you welding all day long.
•  Rugged power source case design.
•  Cooling chamber keeps any dirty airflow away from electronic parts.
•  Built using only 2 large IGBT modules for the ultimate reliability.
•  Genuine no nonsense industrial machines built to work hard for 25+ years

Technical Data

 Supplied with a free MB36-3m torch and reg.

Further Reading

If you are considering a MIG welder then the choice is often between a transformer based machine on wheels or a inverter based machine. For workshop use a good European made transformer based basic MIG machine with simple switches to control the output power has been the sensible choice for many applications. (Commonly referred to as step voltage or transformer type machines). They are generally cost effective, reliable, perform well, have a long life span. Also a good quality basic MIG machine is quite electrically efficient in design (around 77% for most OXFORD MIG models). 
However recent UK & EU legislation now requires efficiency to meet 80% for single phase or 85% for 3 phase welding power sources. Also required is low  power consumption on standby & there are additional rules regarding spares availability.
Our OXFORD machines have always been built to stand the test of time, simple, rugged & reliable so we always used copper wound traditional transformers for every machine. However the new legislation means we can no longer make most transformer based welding sets, its just not quite possible to get to the minimum efficiency needed. 
Oxford new inverter machines are totally unique in design & build. Firstly, we always want to make solid reliable equipment built to last. So Oxford inverter machines are made using only two IGBT power modules (transistors) with minimal PCB's & small parts, also no microprocessors are used. (fewer parts = higher reliability). Our PCB's have very high creepage & clearances between tracks & parts to maximise reliability in damp dirty conditions. We also use a separate cooling chamber to keep dirty airflow away from electronics. OXFORD inverters are very simple in construction & can be maintained by any competent Technician anywhere in the world (no electronic degree or inverter experience needed).