How to make Powerful Spot Welder Using Capacitor

$2 for 2-Layer PCBs & $5 for 4-Layer PCBs: jlcpcb.com/PCH
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In this video, I'm showing how to make a portable spot welder machine at home using super capacitors, i used 4x 6800uf/35v capacitors with bridge Rectifier & 9-0-9 Transformer, The best part is this spot welder can be directly powered up by Ac 220v.
So, watch full video without skipping.
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[@Traderhood]

Simplicity and clarity of your video is amazing!

[@CreativeTechos]

Thanks for appreciating, Thanks for watching 🙂

[@azym2091]

Couldn't be more simpler and clearer than this!

[@Jenevie_Delloson_]

You can do it simple without using transpormer and briagde rectafire, some diy like this is used 12v charger 1 or 2 capasitor,diode, and wire. Im also than doing it in a year ago take note to use diode if you will use 12v charger or other 12v supply to protect it from fly back of capasitor

[@tomnorman5461]

I like your videos, but I'd really like to see a schematic diagram of the circuit during the video .

[@juhbabah]

Very clear and simple, now I can make my own spot welding machine.

[@CreativeTechos]

You may also would like to check out this spot welder with more strong and professional welding kzbin.info/www/bejne/Z5aXnYKAmtZ0mZo

[@juhbabah]

@@CreativeTechos Ok, thanks.

[@CreativeTechos]

My pleasure, Thanks for watching 🙂

[@kalpeshakbari]

Can sale you

[@cesararevalo4045]

@@CreativeTechos a as

[@meisievannancy]

So this transformer is 18Vac at 1A rectified with a full bridge which must exceed the 1A when shorted out on the 4x 6800uF 35V caps = 27200uF total and 24Vdc on the caps before discharge. You can then use a lower voltage but increase capacitance. Q = CV which means if you half the voltage you must double the capacitance. But I would use low ESR 105C capacitors. They discharge harder because the ESR (electronic series resistance) is lower. Also instead of the 1N5408 I would use a 100ohm 5W resistor so as to not burn out the transformer. The time to recharge would then be about half a second.

[@cmgeolo]

Every time I think of a new project you already have an awesome video on it! Keep it up!

[@dijutripura3445]

This is very usefull video Thankyou bro❤ love from India🙏🙏

[@CreativeTechos]

Glad to know that, Thanks for watching my friend 🙂

[@petrok8618]

1 this approach needs powerful thyristor for commutating capacitors in moment of welding to avoid sparkles and make welding of better quality. 2 you should pull off stripe by plyers until stripe will rip off from battery. If spots of welding will stay on battery can - then it's quality welding. Otherwise - no.

[@chuckvoss9344]

A very fine job on everything. Thanks for sharing with us.

[@HeshviCreation]

🙏 Thanks Brother for this Project. I will try it and if it work then it's very helpful for me

[@CreativeTechos]

It works good, also you may would like to check out this new spot welder with strong and professional welding kzbin.info/www/bejne/nXqphqhjYteJfJY

[@atoksurid8839]

Very simple gob job..i Like sport welder u friend smple 👍👍👍⭐⭐⭐⭐⭐

[@CreativeTechos]

Thanks for watching my friend 🙂

[@zinminchit9188]

If i don't have the 9-0-9 tranformer which is i can use for it bro..pls

[@arivualagan432]

Thank for you very simple

[@CreativeTechos]

Thanks for watching 🙂

[@digitalstormvideophoto7022]

Nice demo.

[@gafurjabborov9524]

Спасибо большое за видео класний чокий ясно

[@CreativeTechos]

Thanks for watching my friend, new powerful version of spot welder coming tomorrow, don't forget to watch it.

[@fredisa8733]

Hi, excellent thanks for the Share !

[@CreativeTechos]

Thanks for watching my friend 🙂

[@singingzone3056]

I heartly say very very thanks to u for this video.This is a special video for me as I had told u some months ago to make this spot welder..I see and like your every videos... Love from jharkhand..❤👍 Dr. Deepak kumar

[@CreativeTechos]

Thanks for appreciating, Thanks for watching 🙂

[@sreekumarUSA]

Thanks!

[@CreativeTechos]

My pleasure, Appreciating for showing support

[@g7mks383]

Really good that no mains fuse is used in the input, Bang. What happens if the two welding probes weld to the battery, no way of disconnecting? Smoke!!!!

[@lotfibouchiba1537]

merci beaucoup

[@CreativeTechos]

My pleasure, Thanks for watching 👍

[@faridnaser4315]

Thank you

[@danielrios7303]

Gracia por compartir tu conocimiento, Dios te bendiga. Podría utilizar un transformador 12v-0v-12v

[@CreativeTechos]

Thanks for watching 🙂

[@_INDIA-]

Have to use 30v capistor cause its deliver 27v output

[@chichivhs4k]

sáng tạo đó bạn mình

[@CreativeTechos]

👍

[@beautifulbeautiful-re8dt]

Brother very nice

[@CreativeTechos]

Thanks for watching my friend 🙂

[@belalbhuiyan959]

so nice video

[@CreativeTechos]

Many many thanks

[@user-de9wf4yz6g]

ใช้ KBP3510 Bridge Rectifier Diode 35A 1000V ได้ไหมครับ

[@chichivhs4k]

cách làm mỏ hàn chập thú vị

[@CreativeTechos]

Upload already instant heating soldering iron, you may check that out.

[@robertallaire432]

Si vous arrivez à souder correctement avec ce système, vous avez de la chance ! Au minimum prévoyez un asservissement du temps de soudage ...

[@AhmedMagdy-xb8bl]

Thanks for sharing.. After testing this method all i got was scratches on the surface (of nickel strip with 0.15 mm thickness). I used 6 capacitors 35 v and 4700mf. If you looking for a mini spot welding machine for your project, this one will not give you any progress at all.

[@CreativeTechos]

Thos spot welder will work well when using minimum 4x 6800 uf caps, also both probs should not short on nickle strip, one should on surface of cell and another on nickle strip, link i done in video, also this spot welder is just for minimal welding. If you want professional diy spot welder with strong welds check out this new spot welder circuit. kzbin.info/www/bejne/nXqphqhjYteJfJY

[@alimughal7258]

Guide me please Can I use a diode bridge rectifier instead of using this rectifier?

[@CreativeTechos]

Yes you can make rectifier using diodes.

[@PIKAJULLA]

buenas mi hermano como estas, me gusta tu proyecto pero tengo una pregunta perdona mi ignorancia ese diodo que colocaste de salida negativa de los filtros y lo colocaste a la salida negativa del cuadro de diodos que función hace porfa 👍👍

[@CreativeTechos]

The diode i used on mosfets with reverse polarity, is actually a Recovery diode, that protects the mosfets from burning by continue turning on, with diode it discharges the fets and switchs them back to off position, when there is no pwm signal from 555 ic to gate of mosfets.

[@dusanvracaric1618]

I connected the device according to your instructions, but it does not generate enough spark to puncture the battery strip. I put in parallel another such set of 4 capacitors of 6800 micro farads each and the device still cannot break through the tape and not make contact between the tape and the battery.

[@budisantosochanel]

boleh ini nanti di coba

[@user-dw6fj1py1o]

Cool video project!

[@CreativeTechos]

Thank you! Cheers!

[@shaikhfahad1716]

Please check the design again because in practical capacitors position are different & in 3D animation that position is different so please confirm it if I'm wrong

[@zahoorahmed9078]

Bridge rectifier KY - ko capacitor KY + say jorna hoga am I right

Excellent!!!

[@CreativeTechos]

Thanks for watching my friend 🙂

[@MACAVENTURES]

Bon ont voit pas vraiment si ça tien et qu'elle épaisseur souder et quel matières vidéo sans intérêt 😢

[@admin3515]

SUPER ❗️👍💪🤝✌️💰👑🚀🛸

[@CreativeTechos]

Thanks for watching my friend 🙂

[@RixtronixLAB]

Nice video, thanks :)

[@CreativeTechos]

Thanks for watching my friend 🙂

[@adnaan.ahmeed]

Can I use capacitor 6800uf 50 volts with 9-0-9 2Amp transformer

[@CreativeTechos]

Yes, you can use, Also you may would like to check out this new spot welder with strong and professional welding kzbin.info/www/bejne/nXqphqhjYteJfJY

[@GullemPong]

🎉Wow magic!

[@pierre-yvesdubreuil9315]

hi! Why is there a 1n5408 diode? Isn't it redundant...?

[@hansgouda8593]

Interesting and nicely done, but soldering is not soldering, but pasting. Solder needs time to flow. With 'paste' you get bad connections.

[@user-zq3ty3nw3e]

Please I have made one at home but it can work the way it supposed to be, please can you help out?

[@shkraju]

What is the input power source to transformer?

[@PankajTiwari-br1wt]

Can i use 35 v 4700uf capacitor

[@ed-tM]

Good 👍

[@CreativeTechos]

Thanks for watching my friend 🙂

[@zaidhussain5206]

Thank you for sharing this video really inspirational

[@CreativeTechos]

Thanks for watching my friend 🙂

[@Akash-oy9zu]

Can i use 25v 6800uf capacitor instead of 35v 6800uf? Please reply i need know

[@harunaltunde5728]

Yes as far as the transformer output voltage doesn't exceed 25v

[@vishwanathsingh1781]

Can we use 5000uf ,50 volt capacitor in this, And transforer 12-0-12 ?

[@CreativeTechos]

Yes, you can use i used 9-0-9 v transformer because capacitors spot welders perform better with lower voltage but higher capacitance, so that it will store higher current with low voltage. You may also would like to check out this spot welder with strong and professional welding. kzbin.info/www/bejne/nXqphqhjYteJfJY

[@michaelpinch724]

​@@CreativeTechos can I use different voltage and different capacitance?

[@Jenevie_Delloson_]

Try to put fuse in input of tranpormer for protection of transpormer

[@nitingupta5654]

Hello Sir, I want to clear a doubt that can we use a timer delay module to get the right amount of spark needed for spot welding. Please answer I am making this spot welding machine.

[@STOP_RIGHT_THERE_CRIMINAL_SCUM]

Someone tell me what is the voltage coming out of the transformer

[@CreativeTechos]

24v from 9-0-9 1A transformer

[@pkcadblogs832]

Can it welding Lipo4 32650

[@SanyxzogaSany]

Transfomer 9v 0 9v 5VA can use for this spot weld...? Sorry i newbie...😅

[@andrenbalajadia4102]

Hi. Nice video. Can i put a dc breaker right after the transformer? If so what amp shoukd i use?😊

[@CreativeTechos]

For what purpose you want to add breaker

[@andrenbalajadia4102]

In case the probes got welded? I dont have any idea i just wanted to add extra caution? Thanks for your answer.

[@GregOnSummit]

What size rectifier is it? bought 4 boards so waiting to build it up.

[@CreativeTechos]

6A, KBL608

[@alparslanvural]

can i use 3mm copper wire instead of 2mm enamel wire dude ?

[@CreativeTechos]

Yep, no problem

[@MyatThawMaung-vt9lk]

Good

[@irshuraaz6026]

Aap jo bhi video banate ho aap video kai baad us video ka naksha dikhte ho sir wo kaise bantta hai sir

[@CreativeTechos]

You mean circuit diagram, right?

[@irshuraaz6026]

@@CreativeTechos sir video bnao im wait you video 🥰🥰🥰❤️❤️

[@jacksonv1ll836]

If you short the caps for a long time then what may happen?

[@CreativeTechos]

Nothing can happen to capacitors, but transformer will get heatup due to over load

[@user-zm9fh6ft1i]

1n5408 это фирменная фишка такая? Слово диод в названии диодный мост не намекает, что там уже есть диоды? Зачем после него ещё диод ставить?

[@CreativeTechos]

It is used to limit current to 3A, if someone would have bigger transformer & high amp bridge rectifier.

[@CreativeTechos]

This spot welder is for just home hack to spot weld not in professional applications. Check out this tutorial video of new version spot welder for professional and strong welding using 555ic kzbin.info/www/bejne/nXqphqhjYteJfJY

[@zahoorahmed9078]

Sir what wiil input the 220 volt current into trnasformer

[@syazweiwe6414]

Sir can use capacitor 25v 1000uf? And can use 1 only capacitor or need 4 capacitor?

[@CreativeTechos]

1000uf capacitor us not enough to make welds. You need to use higher uf capacitors with less voltage for best welds

[@RowanYouTube]

What is the purposes of that single diode?any way the bridge rectifier will convert ac to dc..

[@wadib3eed7]

I think it is to protect the transformer, because when you making spot you are making short circuit in whole circuit.

[@adplaqutic9079]

😂😂😂😂 you don't know about the bridge rectifier diode

[@zahoorahmed9078]

Please tell me transformer should me how much volt watt and ampere required

[@lets.powerup]

very clear bro, plz add diagram

[@CreativeTechos]

Circuit Diagram & PCB Layout files can be downloaded from video description.

[@DavidRobertLewis]

So I have the project built up with a 9-0-9 3000mA Max and four 6800uF caps, rest to spec. It just blows holes through the nickel strip, any suggestions?

[@AviAero123]

Hi, I was about to begin making this. But stopped to scroll through the comments. Could you explain your plight? Did you use exactly the same components and how long did you short to get holes in the strip?

[@DavidRobertLewis]

@@AviAero123 9-0-9 3000mA Max and four 6800uF caps. The minute the probes short on the nickel strip, the result knocks a small hole through the strip. I must have too many Amps?

[@CreativeBorneo]

good job my friend, succes for you

[@CreativeTechos]

Thanks for watching 🙂

[@kezzkezzkezz]

What other Capacitors can be used, I can't get 6800uF in my country

[@CreativeTechos]

You can use higher uf capacitors, if available use 1 Farad capacitor with 2-5 volts. It will perform better, Also if you would like to make professional spot welder for daily use with strong welding check out this video kzbin.info/www/bejne/nXqphqhjYteJfJY

[@kezzkezzkezz]

@@CreativeTechos would the 1 Farad still fit the designed PCB you made? I received them from jlcpcb

[@CreativeTechos]

If you've got your PCB than same size capacitor must be used. 1 Farad will be bigger.

[@kezzkezzkezz]

@@CreativeTechos the only way for me to get 6800uF is china and they won't arrive till end of November same as the bridge rectifier

[@CreativeTechos]

Then make this spot welder it is better & professional for daily use. kzbin.info/www/bejne/nXqphqhjYteJfJY

[@chellappasakthivel5782]

Super

[@CreativeTechos]

This spot welder is for just home hack to spot weld not in professional applications. Check out this tutorial video of new version spot welder for professional and strong welding using 555ic kzbin.info/www/bejne/nXqphqhjYteJfJY

[@zinminchit9188]

Can i use 50V 68000uf?

[@rogervillareal5233]

Can I use 9-0-9, 2A transformer?

[@CreativeTechos]

Yes, of course you can use

[@djjaskolmechanik3509]

What is the function of the D2 diode? Transformer what power?

[@CreativeTechos]

D2 1N5408 General purpose Diode is there for pass through to protect bridge Rectifier from fusing. 9-0-9 transformer can be used from 1-2 A

[@shahrierahmedkhan1236]

If i use 4700uf 50v capacitor?? Is it going to work?

[@sreekumarUSA]

How do I order for the PCBs. The description wasn’t clear. Would appreciate if the link is forwarded. Thanks.

[@airtoncompri2960]

Da para por umz ponta de tungstênio no positiva

[@clark2711]

What're the specs of transformer? I know it's a 9v but what amperage it's rated for?

[@CreativeTechos]

Use 1A 9-0-9 transformer

[@stanisawmuszynski8978]

Good job,💪👏

[@CreativeTechos]

Thank you! Cheers!

[@ronaldarrobo6003]

EXELENT

[@mdmainulhoque2168]

Sir can I make bridge rectifier using 1n4007 diode ?

[@qurmans]

Is welding quality strong enough sir? Transormer is 5amp , rigth? It seems nice job...

[@CreativeTechos]

Actually transformer you should use is 1-2A max and works perfectly and welds well. You may also would like to check out this spot welder with more strong and professional welding kzbin.info/www/bejne/Z5aXnYKAmtZ0mZo

[@qurmans]

@@CreativeTechos thanks so much...

[@CreativeTechos]

My pleasure Thanks for watching 🙂

[@taufequr]

6800uf capacitor It can be changed to something else. I can't find it

[@CreativeTechos]

The more higher uf and lower voltage like 3-5v will give better welds

[@taufequr]

@@CreativeTechos 6800uf 25v capacitor or 2200uf 25v

[@CreativeTechos]

2200uf would need even more, you can use 6800uf or higher & voltage minimum 16v rated

[@huongthanh5190]

Great

[@CreativeTechos]

Thanks for watching 🙂

[@dusanvracaric1618]

The circuit does not work with the 1N5408 diode. She doesn't belong there. You should simply connect the negative pole of the Gretz directly to the negative of the capacitor pack.

[@jpamerico1]

A sondagem ficou excelente! Parabéns.. Como é o transformador que você utilizou?

[@nitroboom1282]

It might be a 240vac to 12 or 24v ac transformer

[@viktorsolodovnikov1290]

@@nitroboom1282 к

[@nobuddy8063]

est-ce que vos composantes peuvent marcher car au Québec,notre courant est de 120volts et 60HZ.

[@CreativeTechos]

Then you need to buy transformer accordingly 120v to 9-0-9v step down, rest same components can be used. You also may like to check out this new 12v spot welder video with strong and professional welding. kzbin.info/www/bejne/nXqphqhjYteJfJY

[@user-tb6xr6us2e]

hi brother . I just made one now with 4x 6800 uf 50v capacitors and 12012v 50va transformer and 4 x 6A10 diode bridge . I have also added one more 6A10 diode diode for the protection . I used 1 5mm LED with 1k ohm resistance 1w . It is making good spark and spot welding fine. But the LED is not lighting up . Could tell me where the problem might be. Thanks.

[@d.jensen5153]

Wrong polarity? Reverse the LED.

[@mohammadmujammil5584]

Can u share guide or video?

[@irshuraaz6026]

Sir mujhe wo naksha sikhna hai growing kaise banti hai sir

[@CreativeTechos]

It can be made in easy cad and i use kicad software

[@rahmathidayat7191]

Output 0 negative transformer is not used?

[@CreativeTechos]

Yes zero is actually half, in 9-0-9 Transformer 9&0 wire will give 9v but using 9&9 wire will give 18v output

[@dvnoytekvlog6634]

I want try that.

[@CreativeTechos]

Yes sure, you can make it it works 100%, Also you if you would like to check another spot welder with strong & professional welding kzbin.info/www/bejne/nXqphqhjYteJfJY

[@bethovenrodicerazo]

How many amps is the transformer?

[@jaywin_82]

Is the power supply source 9v AC?

[@nirmaldebnath8937]

If KBP-307 rectifier bridge is not available in market then it is better to specify the alternative.

[@alimughal7258]

Same question

[@nirmalkumardebnath3218]

It is very useful and amazing video but need to specify transformer capacity ie 1amp or 2 amp required. Can i use KBL10- bridge rectifier DIODE 4A instead of kbp 307 bridge rectifier ? Thank you sir so much.

[@CreativeTechos]

You can use any bridge rectifier above 1A, and transformer max 12v 1A, and more capacitor will weld more stong, but for professional and strong welding check out this new spot welder kzbin.info/www/bejne/nXqphqhjYteJfJY

[@kezzkezzkezz]

you need to widen the holes on the gerber file for the bridge rectifier they're too small

[@jpamerico1]

A ponte retificadora pode ser aquelas de fonte atx?

[@MrShahab1977]

Can we use 12-0 v transformer instead of 9-0-9v transformer as you have used

[@MrShahab1977]

I meant 12-0v 1A transformer instead of 9-0-0v transformer

[@rogervillareal5233]

I used 4x 6800uf 35v capacitor, Kbp307 rectifier, 12 0 12v 750amps transformer, 1N5408 diode..it only blows hole and no weld..any suggestion to make good weld.?

[@AviAero123]

Hi, I was about to begin making this. But stopped to scroll through the comments. Could you explain your plight? Did you use exactly the same components and how long did you short to get holes in the strip?

[@meisievannancy]

750A transformer is a very big transformer.. That is the problem.