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Welding Supplies Direct & associated company TWS Direct Ltd is an online distributor of a wide variety of welding supplies, welding equipment and welding machine. We supply plasma cutters, MIG, TIG, ARC welding machines and support consumables to the UK, Europe and North America.

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Miller STi 203 MMA Welder - 3 Phase - Premier Finance

In stock
£1,270.08 £1,058.40


  • Portable in the shop or at the jobsite — at 17KG the STi 203 is easily moved from location to location. 
  • Inverter-based, DC power source has a simple-to-use operator interface providing only the necessary controls in a compact machine. 
  • Digital meter. Preset amperage/voltage or actual while welding. 
  • Remote amperage control provided through 14-pin receptacle on front of machine.  
  • Lift-ArcTM start provides TIG arc starting without the use of high frequency or the risk of tungsten contamination. 
  • Adaptive Hot StartTM for Stick arc starts automatically increases the output amperage at the start of a weld should the start require it. 
  • DIG control allows the arc characteristics to be changed for specific applications and electrodes. 
  • Input Power - 400V 3 phase
  • Amperage Range - 5-200A
  • Rated Output - MMA: 200A @ 18V With 40% duty cycle TIG: 200A @ 28V With 40% duty cycle 
  • Max Open Circuit Voltage - 85VDC
  • Dimensions - H: 345MM W: 190MM D: 460MM
  • Weight - 17KG

Includes 3M MMA Leads & Earth clamp 


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