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Oxford WELDi 273 Portable MMA Welder

£920.00 ex VAT

Further Reductions Available On Request 01276 505012

  • Hand Portable Unit (3 Phase)
  • Duty Cycle 205A @ 60%
  • British Built
SKU: WELDi 273 Categories: , , Tags: , ,



The Oxford WELDi 273 is a mobile 3 phase 270 amp stick welding inverter built here in Britain by the well known Oxford factory.  A high power MMA set which combines fast arc starts with very smooth welding results. Excellent duty cycles ensure this unit can keep you welding all day without stopping.  British built from solid reliable parts and generator friendly, with built in protection from over and under voltage.  The generator protection within the WELDi 273 also safeguards against over temperature and over currents.

This inverter’s tough and rugged design has subjected to numerous drop tests which significantly exceed BS standard requirements. The in built cooling chamber ensures the electronic parts are kept clear of grinding dust or dirty airflow.  The Weldi also has auto compensation for extension cables upto 100 metres in length and can deal with unstable or poor mains input supplys. The high efficiency design of the Oxford WELDi 273 and 12-16w standby power significantly helps in reducing running costs, plus benefiting the environment.

Main features & functions
  • Superior welding performance with fast arc starts & super smooth welding.
  • High duty cycles to keep you welding all day without stopping.
  • Generator friendly with built in protection from over & under voltage, over temp, over current, etc.
  • Auto compensation for extension cables up to 100M & unstable or poor mains input supply.
  • High efficiency design & 12-16W standy power reduces running costs & helps the environment.
  • Rugged case design, with drop tests way exceeding the BS standard.
  • Only 1 control PCB fitted with protection from damp & dust.
  • Built using only 2 large iGBT modules to give superior reliability.
  • Cooling chamber keeps any grinding dust or dirty airflow away from electronic parts.
  • Happy to weld every day or store for years without failure.
  • Genuine no nonsence industrial machines built to work hard for 25+ years.
Optional Accessories
  • 3 Meter 35mm MMA Electrode Lead
  • 3 Meter 50mm MMA Electrode Lead
  • Gas Valve TIG Torch


Oxford WELDi Portable MMA Power Source Inverters Specification

* Note the input fuse size on single phase models is a result of Oxfords calculations & tests, it is possible to use any of these models on a lower fuse size at lower welding power. It is recommended always using a ‘D’ type circuit breaker to avoid intermittant tripping & in some instances you may experience intermittant tripping if using close to maximum settings. *The min KVA rating quoted is for up to 3/4 power output, to achieve max output we suggest increase KVA by 40%.

All ratings above are based on TIG welding, when using on MMA or MIG duty cycles reduce by 15% & input power increases a little.
Compliance with with BS EN60974-1, BS EN 60974-10, RoHS, weee registered & CE marked.

Why accept an imported machine when you can buy a top quality British made machine for a similar price?


Every Oxford welding machine is offered with the following guarantees:
2 year warranty all items
5 year main transformer warranty (the heart of the machine)
20 year minimum guarantee of spares availability


Please note:  Oxford machines are built to order and may take 7 – 14 working days from order to be built and dispatched.  If you place an order online, one of sales team will be in touch to confirm delivery time scales.  Also note our returns policy for these machines on our terms and conditions page.

Additional information


Dual Voltage 110V/230V, Dual Voltage 230V/400V


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