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The Machine Shop => Everything Fabrication => Topic started by: Wyattboche on November 23, 2009, 03:11:31 PM

Title: Welders
Post by: Wyattboche on November 23, 2009, 03:11:31 PM: Can someone explain to me what duty cycle means. So is the higher the percent better or worse?
Title: Re: Welders
Post by: SPEC on November 23, 2009, 05:05:49 PM: Duty cycle is the percentage uf power usage during a 10 minute cycle...
Most 110 welders are rated at 30% witch is a kick out point That means weld for 3 minutes ...drink beer for 7 minutes weld for 3 mins and DRINK BEER FOR 7 MINUTES... Bigger 220 welders are often 60% to 70%...wich means less drinking time between welds
Title: Re: Welders
Post by: Boostinjdm on November 23, 2009, 05:30:07 PM: That's partially correct. The duty cycle is for a specific output. Turn the welder down a bit and get a better duty cycle. And that is actual arc time by the way. Think of it like rolling a tire up a hill. When you are throwing sparks you are pushing the tire. When you stop, you let go of the tire and it starts rolling back down the hill. Point is, if you are stopping and starting frequently, it takes a lot to hit the duty cycle of a quality machine or get the tire all the way to the top of the hill.
Title: Re: Welders
Post by: Wyattboche on November 05, 2013, 07:44:00 PM: I run a 220 welder and a 120 welder. Was wondering if I could buy a big tank and run both off the same tank? Is this possible or not? Have a little tank on the 120. Little one keeps running out.
Title: Re: Welders
Post by: fabr on November 05, 2013, 09:18:42 PM: yes.
Title: Re: Welders
Post by: BDKW1 on November 05, 2013, 09:50:40 PM: Keep a tank on each and get a spare so when you run both tanks empty on a sunday you can still keep going.
Title: Re: Welders
Post by: Carlriddle on November 06, 2013, 07:19:47 AM: Yours run out on Sundays too? Must be O's fault. rofl

Unless the 2 welders are on same welding cart or one is only rarely used swapping the cylinder kcab and forth kinda a pain.
Title: Re: Welders
Post by: deano on November 06, 2013, 09:16:10 AM: you all are right, but it is a continues wield, i have not had a higher % one did not keep up in 45 years of wielding
Title: Re: Welders
Post by: Wyattboche on November 06, 2013, 03:27:01 PM: Quote from: fabr on November 05, 2013, 09:18:42 PM
yes.
is it possible to run two separate regulators on the same tank?
Title: Re: Welders
Post by: fabr on November 06, 2013, 04:17:08 PM: Not that I know of. Some of the pros here may know differently.
Title: Re: Welders
Post by: deano on November 06, 2013, 06:11:24 PM: fab your right, but you are higher on that list of to pro stat,manufacture use away different wielder for greater % some are 480 volts ,at BIG$$$$$$$$ 8)
Title: Re: Welders
Post by: deano on November 06, 2013, 06:13:53 PM: fab have you had any of yours ,you had to wait on to cool down ? ???
Title: Re: Welders
Post by: deano on November 06, 2013, 06:22:27 PM: I have some 110 modal that acted up ,some are not for continues wielding i have not had probum with any 220 units & ever in buggy builds plus
Title: Re: Welders
Post by: fabr on November 06, 2013, 06:54:09 PM: Quote from: deano on November 06, 2013, 06:13:53 PM
fab have you had any of yours ,you had to wait on to cool down ? ???
Never a once. I run at about 40% machine capacity average and that ,of course ,greatly increases duty cycle as you know.