Copper Spot Welder Recommendations for USA?

[YoshiMoshi]

I'm looking for spot welder recommendations and I live in the states. I would like to spot weld copper.

I know a lot of people on these forums use a spot welder called "K Weld" but this doesn't seem to be purchasable very easily in the states. There's also multiple pieces that have to be purchase separately, and requires assembly.

I would to just purchase one, open it, turn it on and go. I would like to purchase one from a reputable site.

Nickel is just too thick for my application.

Can anyone make any recommendations?

This is for spot welding to make battery packs, to spot weld copper strips to cells. Or at the very least is strong enough to make a copper nickel sandwich.

One with a probe holder would be helpful.

 

[Zambam]

Glitter 811H, expensive though.

 

[YoshiMoshi]

Glitter 811H, expensive though.

Thanks for the recommendation. Do you have this welder? Dang, it is a little bit more than I was hoping to spend at over $500. Is there nothing in-between the "cheap stuff" on Amazon for $50 to $100 and this $500 plus welder that can spot weld copper?

 

[Zambam]

I do not have one (I wish!). I heard about this model from someone and found the 2 videos showing welding copper to copper.

A cheaper welder is the Malectrics (I do not have one) that welds copper but a nickel strip is needed on top, per this video.

 

[YoshiMoshi]

I do not have one (I wish!). I heard about this model from someone and found the 2 videos showing welding copper to copper.

A cheaper welder is the Malectrics (I do not have one) that welds copper but a nickel strip is needed on top, per this video.

Do you know we're I could buy one?

Looks like Glitter 811H can weld copper that is up to 0.45 mm thick lol, that's crazy.

But yea I don't need something so powerful.

As long as I can do 0.1 mm thick copper (perhaps something even thinner). As long as I can layer it on.

Meaning if a welder can weld 0.2 copper great! But if one can do 0.1 mm copper and I just have to stack two strips on top of each other and it's half the cost, than why not?

Also any idea why you need flex when spot welding copper to copper?

 

[YoshiMoshi]

I did some digging. The welders that I found that could spot weld copper are as follows:

Manufacturer	Model	Power	Copper to Copper	Price from Manufacturer	Manufacturer Website
Sunkko	A330H	42 kW	0.15-0.5 mm	$1,099.99​	SUNKKO A330 Series Gantry-style Pneumatic Battery Spot Welder Capacitor Energy Storage Pulse Welding Machine glitterwelder.com
Sunkko	A330+	27 kW	0.15-0.3 mm	$749.99​	SUNKKO A330 Series Gantry-style Pneumatic Battery Spot Welder Capacitor Energy Storage Pulse Welding Machine glitterwelder.com
Glitter	811H	42 kW	0.15-0.4 mm	$429.99​	Spot Welder - 811 Series - High Power - Glitter glitterwelder.com
Glitter	811H	36 kW	0.15-0.3 mm	?	Spot Welder - 811 Series - High Power - Glitter glitterwelder.com
Glitter	811A	36 kW	0.15-0.3 mm	$339.99​	GLITTER 811A Battery Spot Welder Capacitor Energy Storage Pulse Welding Machine Industrial Intelligent Spot Welder Specially Designed For Welding Copper, Aluminum and Nickel Conversion glitterwelder.com
Glitter	811A	27 kW	0.15-0.25 mm	$289.99​	GLITTER 811A Battery Spot Welder Capacitor Energy Storage Pulse Welding Machine Industrial Intelligent Spot Welder Specially Designed For Welding Copper, Aluminum and Nickel Conversion glitterwelder.com
Glitter	811A	30 kW	0.15-0.3 mm	$319.99​	GLITTER 811A Battery Spot Welder Capacitor Energy Storage Pulse Welding Machine Industrial Intelligent Spot Welder Specially Designed For Welding Copper, Aluminum and Nickel Conversion glitterwelder.com
Glitter	811A	22.8 kW	0.15-0.2 mm	$269.99​	GLITTER 811A Battery Spot Welder Capacitor Energy Storage Pulse Welding Machine Industrial Intelligent Spot Welder Specially Designed For Welding Copper, Aluminum and Nickel Conversion glitterwelder.com
U.S. Solid	USS-BSW08	42 kW	0.4 mm	$679.99​	U.S. Solid Battery Spot Welder - 42KW 7000A Capacitor Energy Storage P Product Features The newly designed U.S. Solid USS-BSW00008 high-frequency inversion battery spot welder equips with the six super capacitors for energy storage and power supply for pulse welding. Unlike traditional AC transformer spot welders, it does not cause any interference to the electric... ussolid.com

It appears that the Glitter 811A 22.8 kW is the cheapest one that can weld copper. As long as your willing to stack, I don't know what additional applications the more powerful ones would get you.

All the spot welders above don't appear to be something you can buy on like Amazon. They are all made in China, and I'd be worried about warranty. I have seen people complain about the Glitter spot welders on Amazon, the ones that are sold on there.

If anyone knows of other spot welders that can spot weld copper, please post them here. I'd hope to find one that has a good warranty, or something that I would at least not have to import from China, and be a big hassle if I receive a welder that gets damaged in shipping or doesn't work. I think I would be out of luck.

Were if I were at least able to buy one of these on like Amazon or Ebay, I would at least be protected and able to return it.

I see a lot of these high powered spot welders are on Alli Express or Alli Baba. Anyone ever try returning something purchased from them. Is there good buyer protection for the buyer?

Essentially, people say don't buy batteries on Alli Express because it's flooded with fake cells or cells that are used and rewrapped. So I'm a bit hesitant at buying a welder from Alli Express?

 

[Zambam]

Do you know we're I could buy one?

Looks like Glitter 811H can weld copper that is up to 0.45 mm thick lol, that's crazy.

But yea I don't need something so powerful.

As long as I can do 0.1 mm thick copper (perhaps something even thinner). As long as I can layer it on.

Meaning if a welder can weld 0.2 copper great! But if one can do 0.1 mm copper and I just have to stack two strips on top of each other and it's half the cost, than why not?

Also any idea why you need flex when spot welding copper to copper?

DIY Arduino Battery Spot Welder Kit V4 Full Bundle For Car Battery - Malectrics

What is it? This is the full product bundle for the DIY Arduino Battery Spot Welder for use with a car battery. It contains the basic parts you need to start welding plus all optional parts like 3d printed case, fuse and foot switch. What you get: DIY Arduino Battery Spot Welder Prebuilt Kit V4...

malectrics.eu

Looks like only available from EU and they do ship to the US.
You should write them and make sure it will do everything you want before buying