Petrol Welders
Spitfire petrol welding sets are renowned as industry standards in their field
Spitfire Petrol welding generators (SWP) are renowned in the industry for their rugged reliability.
From 130 to 250 Amps, in AC and DC configurations, each welder-gen is designed with an application in mind. From the portable 130 Amp AC set, through to the long-term performance of the SWP250DC, there is a HGI Welder to suit your requirements.
The SWP range of petrol welders offers technological expertise that brings together power and performance in a safe and robust package giving the operator reduced maintenance and operating costs. The sets use Hondas range of industrial engines that carry a 2 Year warranty the larger 220 and 250 Amp welders use the commercial Vanguard V twin engines which deliver a clean reliable and economic source of power.
The SWP range of welder generators can perform 3 jobs all housed in in one machine ,it welds, gives a grid quality 230V axillary power output, with an option to switch to a site safe 110V , essential for welding on sites without electricity making it a perfect machine.
Which is best? AC or DC
A HGI SWP DC welding set can weld and give auxiliary power at the same time for example you don’t have to go back to the machine to switch between welding current and power output . However an AC welder will give the operator a greater auxiliary power over its DC equivalent ideal for running larger grinders.
DC always provides the most stable arc and gives a more even metal transfer than AC. Once struck the DC remains continuous. When welding with AC the arc extinguishes and restrikes 100 times a second as the current and voltage reverse direction. A DC arc has good wetting action of the molten weld metal and a uniform bead size at low welding currents. For this reason it is excellent for welding thin sections.
Duty cycle
The Duty Cycle is the percentage of time a welding machine can be used continuously. A 60% Duty Cycle means that out of every 10 minutes, the machine can be used for 6 minutes at the maximum rated current. When providing power at this level, it must be cooled off for four minutes in every 10. The Duty Cycle increases as the amperage is lowered and decreases for higher amperages. Most welding machines weld at a 60% rate
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