2. Brief description:
1. Weld copper wire or aluminum wire; or weld copper wire with aluminum wire
2. No need any power, heat, only match corresponding dies.
3. Our machine can weld copper wire from 0.06mm-10.0mm; weld aluminum wire: from 0.06mm-15.0mm.
4. You can choose suitable machine according the wire diameter you need to weld and our machine's welding range.
5. For example, if you want to weld 0.90mm, 1.0mm, 1.20mm, 1.40mm copper wire, you can choose model SZ-3T, SZ-3TR. It should make four single cavity dies or two double cavity dies.

6. Our machine is compatibility with other supplier’s welders. You can use others’ welding machine with our dies; or use our dies on other supplier’s machine.
7. The tolerance of dies to wire: -1%mm+ 3%mm wire to dies tolerance.
For example: 2.0mm dies can weld the wire diameter from: 1.98mm to 2.06mm wires.
8. Can different metals be welded using cold pressure? Cold welding can be used to join dissimilar materials, such as aluminum to copper.
9. It can weld following wires: copper wire ( purple copper wire, brass wire, including round wire or flat wire, square wire); aluminum wire. Plastic wire and other wires should remove surface insulation part, then welding.

Steel wire can't be welded.

3. Principle of cold welding:
Cold-pressure welding is a method of connecting metal and alloy by exerting pressure instead of using electricity, heat, fillers and fluxes. Under concentrated pressure, surface area of both contact surfaces expanded, thus cracking the original protective layer that hampering welding, and outer force enable close connection of exposed pure metal basis, hence generating new atomic combination, and welding is realized by continuously increasing force.

 welding effect

4. SZ-3TR cold welding Machine dies pictures:

All dies of our wire cold welding machine: 

Matched with a trolley:

5. Welding process pictures:
1. Install welding dies into the machine:

2. Adjust the centre hole: 

3. Thread the wires into the dies: 

4. Welding the wires by squeeze t he welder handle:

5. Clean the welded flash- after finished welding:

6. Delivery:

*For small order, we recommend by express like DHL, FedEx, UPS, etc. Large order by air, by sea, by train.
*All welders are in stock, only need time to make welding dies.

7.Advantage of our cold welder:
*One year quality guarantee for main welding Machine. Lifetime Maintenance.
*Competitive price.
*Flexible delivery for sample and big order. Usually most not quite big orders can be delivered within 3 working days after order confirmed.

*10 years working experience for production & Research and Development.
* Certificate: CE, CCC, ISO9001-2008; exporting entitlement.
* Agents & distributors & representatives are welcome for all countries.

8. Exporting Countries we have:

We had exported many countries with good result, like South Korea, India, Pakistan, Sri Lanka, Indonesia, Malaysia, Singapore, Philippines, Vietnam, Thailand, Australia, Iran, UAE, Saudi Arabia, Turkey, Kazakhstan, Uzbekistan, USA, Canada, Russia, Finland, Germany, Serbia, Slovakia, Romania, Egypt, South Africa, Morocco, Tanzania, Angola, Brazil, Mexico, Argentina, Chile, Colombia, etc.

9. Brief catalogue:
You can choose suitable machine according to its wire welding range