Portable welding machines

[jmatawaran]

Hi experts! tanong ko lang, I was on the hunt for a cheap welding machine since I need to repair some of my dog kennels and I stumbled upon this, a machine called the Powerweld, I am not an expert on electrical circuits but this thing looks scary but on the other hand it is "Gawang Pinoy". I would like to purchase this product if its safe to use and I know some people here can share their thoughts on this product.

kindly check this out
youtube.com/watch?feature=endscreen&v=gjPpQKkvjQU&NR=1

[bravokilo]

Sister, mayroon lumabas nung araw na porta welder nga na may ground connection. duda ako dun for safety and i suggest you stick to the traditional transformer type na ISOLATED ang primary at secondary. Marami sa harware, dati under P5k na open type, walang metal casing. Yung iba may casing o housing at Porta nga. Well, my benchmark is the big one na mabigat. I have the Mitsubishi and it is 150 amps capable. the popular brand ever since was the DAIDEN.

Pang dog kernel, rent one, or take it to iron works. May problema ka pa storage latger on. I am in BF Homes Pque and neighbors rent mine for P250 a day. My popular customer  rents it to fix up his guess what? dog kernel!

BK

[???]

Meron nang thread yan dito noon. Status quo.

At meron ring comments sa youtube katabi ng powerweld.

[Super zHero]

up ko lang.  Is anybody using the Powerweld or Increweld?  Or does anybody really believe in this "another Filipino invention"?

[insomartin]

up ko lang.  Is anybody using the Powerweld or Increweld?  Or does anybody really believe in this "another Filipino invention"?

as a welder... it's a crap, trash and.. unsafe.

bili na lang nang china switch mode DC welding machine.

[insomartin]

Q: What type of Stick welder works best for all-around use?

A: A welder with an AC/DC output.

DC welding offers advantages over AC for most Stick applications, including: easier starts; fewer arc outages and sticking; less spatter/better looking welds; easier vertical up and overhead welding; easier to learn "how to weld" and a smoother arc. DC reverse polarity (electrode positive) provides about 10 percent more penetration at a given amperage than AC, while DC straight polarity (electrode negative) welds thinner metals better.

Q: Does an AC output have any advantages?

A: Yes, if you need to weld on material that's become magnetized from friction, such as when hay, feed or water constantly rub against a steel part. A DC output won't work because of "arc blow," where the magnetic field blows the molten filler metal out of the weld puddle. Because an AC output alternates between polarities, it enables you to weld magnetized parts.

Q: How big of machine do I need?

A: A 225 to 300 amp machine handles almost anything the average person will encounter, as most Stick welding procedures require 200 amps or less. To weld material thicker than 3/8 in., simply make multiple passes - this is what professionals do, even when welding on 1 in. structural steel.

Q: I see the word "duty cycle" on product spec sheets? What does that mean?

A: Duty cycle is the number of minutes out of a 10-minute cycle a welder can operate. For example, the Thunderbolt XL creates a 200 amp DC output at 20 percent duty cycle. It can weld continuously at 200 amps for two minutes, and then must cool for eight minutes to prevent overheating.

Duty cycle and amperage are inversely proportional. Operating at 90 amps, the Thunderbolt has a 100 percent duty cycle, meaning you can weld without stopping. This inversely proportional rule is true of all Miller machines but does not apply to all machines made by other companies.

Q: What type of rod should I use for hardfacing?

A: Hardfacing rods can provide impact resistance, abrasion resistance or both depending on the application. Because the type of rod required depends on the type of soil or aggregate in your area, contact your local welding supply distributor and ask for their expert opinion.

Q: What type of rod should I use for general work on steel?

A: Common electrodes used for general work include 6010, 6011, 6013, 7018 and 7024, each of which has specific properties: 6010 electrodes penetrate deeply, while 6013 electrodes penetrate less. For much better bead appearance and work on higher strength steels (say for a hitch), use a 7018 rod. For better penetration on thick material, grind the joint to a 30 degree bevel (leave a nickel-width land on the bottom of the groove) and make multiple passes. Alternatively, make the first pass with a 6010 rod, then make a "cap" with a 7018. The 7024 rod is perhaps the easiest to use. Also known as a "drag rod," this electrode's thick flux automatically maintains the correct arc length, which allows you to drag the rod directly along the work piece.

Q: Do I have to remove rust or oil before welding?

A: Stick welding is more forgiving on unclean conditions, but it never hurts to clean parts with a wire brush or grind off excess rust. If you prepare well and have average welding ability, you can make a sound weld. However, even great welding skill cannot overcome poor preparation, as it can lead to cracking, lack of fusion and slag inclusions.

[Super zHero]

Napanood ko din yung "Atom" welder from Davao sa YouTube.  Freakin' unbelievable    True you can use line voltage to earth ground to create an arc.  But I value my life more than what money I can save, if any, to buy this type welder.

[insomartin]

yung mga ganyan na welding machine is "depende" sa gumagamit. yung safety, depende din sa gumagamit.

welding is dangerous itself. from EMI radiation, toxic smoke particle, radioactive electrodes to fire, blast and burn hazard.
making it a one more step unsafe is just... added to the "unsafe factor"

[Pinoy_Tech]

Hi experts! tanong ko lang, I was on the hunt for a cheap welding machine since I need to repair some of my dog kennels and I stumbled upon this, a machine called the Powerweld, I am not an expert on electrical circuits but this thing looks scary but on the other hand it is "Gawang Pinoy". I would like to purchase this product if its safe to use and I know some people here can share their thoughts on this product.

kindly check this out
youtube.com/watch?feature=endscreen&v=gjPpQKkvjQU&NR=1

Gumagawa ako nyan at di yan safe (I edited other infos........).

[bravokilo]

Agree.

BK

[Tripler02]

yung compact welding machine na singlaki ng truck battery,same construction din ba dun sa malalaking welder?

[???]

Alam ko same lang sila though maliit lang nga. Yung malalaki mga heavy duty talaga iyon.

[bravokilo]

Ok, Trippler, the safe  welding machine is simply a transformer.  The secondary has to be high current, thus the heavy wire, sometimes flat aluminum wire like what I have. The voltage there is low(I didn't check the V). The safe ones has separated primary and secondary. It is not practical to have an autotransformer since the thickness of the primary and secondary wires are quite different. The one invented by a Pinoy is just a primary winding, thus, just a ballast to reduce the V at a certain typical current draw.  And to tap the 110 line, earth ground is used. The chance of electrocution is high.

     As to your question, they could be the same, those minis colored yellow ang case. run a sontnuity test with your tester. There should be no contact between the primary and the secondary windings.

BK

[???]

Sir bk alam nyo po ba ang voltage output ng secondary?

[Min]

Ok, Trippler, the safe  welding machine is simply a transformer.  The secondary has to be high current, thus the heavy wire, sometimes flat aluminum wire like what I have. The voltage there is low(I didn't check the V). The safe ones has separated primary and secondary. It is not practical to have an autotransformer since the thickness of the primary and secondary wires are quite different. The one invented by a Pinoy is just a primary winding, thus, just a ballast to reduce the V at a certain typical current draw.  And to tap the 110 line, earth ground is used. The chance of electrocution is high.

     As to your question, they could be the same, those minis colored yellow ang case. run a sontnuity test with your tester. There should be no contact between the primary and the secondary windings.

BK

Ah ganun pala loob nung portable welding machine...Auto transformer! Delikado nga un. Paano yun nakapasa sa safety at mai-market?

Naka received pa ata ng award ang imbention na to.

[4XFOUR]

I have a Daichi 200A portable welding machine

anyone who can translate kung ano tong mga values indicated?


thanks...

[Super zHero]

... Paano yun nakapasa sa safety at mai-market?

Naka received pa ata ng award ang imbention na to.

That's our problem in the Phils.  I don't think we have safety agencies like UL, VDE, CSA, CE, etc.  If we do, the govt should implement laws to protect the public.  Sabi nga o napanood ko na nakatanggap ng award yung Powerweld.  Wow 

[insomartin]

mas ok lagi mag multiple pass, than using a high current stick weld for filling jobs. 

yung duty cycle is %... it means 20 Percent WELD then 80 % cooling cycle.

[4XFOUR]

ayun maliwanag pa sa araw ang paliwanag... thanks sis inso... ^+1

[Pinoy_Tech]

Sir bk alam nyo po ba ang voltage output ng secondary?

Nung may nag welding sa water tank ko sinukatan ko ng V ang sec, 36VAC lang bro. Yan ay yung may malalaking trafo sa loob. While yung portable na walang trafo, what is Vin is same Vout, aray!