Instructor_Nige
New Member
- Messages
- 25
- Location
- manchester
Hi all,
Thought I would share this as it goes a little against the norm but the results were stunning.
In a post a while back I mentioned that we had 2 Kemppi MLS 2300 AC/DC tig units and I was not happy with them as they are too complex to teach newbies on.. Anyway I sold both Kempii's and replaced them with 3 brand new Rtech 200 amp AC/DC units.. really easy to use and I have to say I am really happy with them BUT....
I dialed them in for ali welding and although smooth I found the arc was a bit unstable and the Zirconiated Tungsten was breaking down faster than usual.. Fiddling with AC balance etc did not totally eliminate the problem. I put it down to the fact that Rtech sets are 1/3 of the price of the Kemppi's and you get what you pay for.. But then I was watching a video by our friend ChuckE2009 and he happened to mention in the video that he had got a new AC inverter set and described the exact same problem, he experimented with different electrodes and in his words "this might sound strange youtubers but the Thoriated tungsten performed best"
So I thought what the hell lets try it... well would you believe it!!! the Rtechs are running every bit as smooth and nice as the former Kemppi's with the red top electrodes in.. No idea why this is, maybe it subtle difference in the wave form due to the circuitry of the rtech that does not suit the white top electrodes, who knows as long as it works its all good.. But i thought i would mention it in case others have had issues on a new set.. might be worth trying different electrodes..
Nige
Thought I would share this as it goes a little against the norm but the results were stunning.
In a post a while back I mentioned that we had 2 Kemppi MLS 2300 AC/DC tig units and I was not happy with them as they are too complex to teach newbies on.. Anyway I sold both Kempii's and replaced them with 3 brand new Rtech 200 amp AC/DC units.. really easy to use and I have to say I am really happy with them BUT....
I dialed them in for ali welding and although smooth I found the arc was a bit unstable and the Zirconiated Tungsten was breaking down faster than usual.. Fiddling with AC balance etc did not totally eliminate the problem. I put it down to the fact that Rtech sets are 1/3 of the price of the Kemppi's and you get what you pay for.. But then I was watching a video by our friend ChuckE2009 and he happened to mention in the video that he had got a new AC inverter set and described the exact same problem, he experimented with different electrodes and in his words "this might sound strange youtubers but the Thoriated tungsten performed best"
So I thought what the hell lets try it... well would you believe it!!! the Rtechs are running every bit as smooth and nice as the former Kemppi's with the red top electrodes in.. No idea why this is, maybe it subtle difference in the wave form due to the circuitry of the rtech that does not suit the white top electrodes, who knows as long as it works its all good.. But i thought i would mention it in case others have had issues on a new set.. might be worth trying different electrodes..
Nige