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  1. #9
    Join Date
    Dec 2012
    Location
    Sweetwater, TX
    Posts
    201

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    Quote Originally Posted by Nathan128 View Post
    The miller CST 280 is a great machine that the only one I have used but it has all the power you need it can plug into 440 3 phase and right down to I think 110 but def 220 the miller video is on you tube for it Good luck
    Hi Nathan, I'll do some searching on youtube, thanks for the tip.

    So have you used the miller CST 280 for both the stick and DC Tig modes? How is the arc on the welder?

    Do you the "soft" and "stiff" settings make much of a difference on the 7018 and 6010 settings?

    I only have 240 single phase and that worries me on the CST 280. It seems like you can only turn it up to 200A on single phase...

    But what happens if you or someone else helping me turns it up past 200A and I start welding with it on single phase? Does it just not work, or does it limit the output internally without causing any problems...?? So many questions about this one.

    The manual says:
    Miller CST 280
    200 A at 28 V,
    50% Duty Cycle*

    150 A at 26 V,
    100% Duty Cycle*

    *Output ratings on 230 V single-phase are reduced to comply with
    CSA current limitation on input power cable.

    It looks like on the Miller even though it is called the "CST 280", on single phase it is only capable of delivering 200 amps according to the graph in the manual.

    So essentially I would be paying more for a welder that appears to be the same amps out as the Maxstar 200 STR with slightly more duty cycle on single phase..?

    Is there really anything that makes the CST different from the Maxstar other than the duty cycle?

    I



    Lincoln is claiming they can go much higher and I guess some how these CSA current limitations don't apply to them....? I don't know. But seems like you get a lot more output on single phase than any other 240V machine I have found.

    Lincoln Invertec V275-S --- single phase 230V
    275A/31V/35%
    250A/30V/60%
    200A/28V/100%

    I just haven't found many people using the V275-S to talk to... probably not many on a Miller forum and I know the Lincoln dealer here will be biased somewhat.




    Last edited by clint738; 12-20-2012 at 05:34 PM. Reason: spelling

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