709AD is an upgrade model based on 709A, we gave an automatic cooling fan to it, the fan will work automatically when the machine's inner temperature gets higher than a certain value, this improvement effectively extends the continuously working time of the machine.
When you weld different thickness of nickel strips or something else, you need to change the pulse settings to adjust the energy output. We added a LCD display to this model to present the instant working status to you, this is also one change of 709AD.
The copper welding needles would be oxidized after a period of welding, this oxidation layer may influence the welding effect. To solve this problem, we added a mini grinder in the package.
Technical Detail(Yes: Y; No: N)
| Welding part |
| Model |
737B |
737G |
788H |
788H-USB |
709A |
709AD |
709AD+ |
| Welding thickness of nickel coated steel |
0.2mm |
0.3mm |
| Welding thickness of pure nickel |
0.15mm |
0.2mm |
| Weld with mobile pen |
N |
Y |
| Soldering functionn |
N |
Y |
| Pulse quantity selection |
1~2 |
2~18 |
| Lithium-ion battery pack charging function |
N |
Y |
N |
| Each pulse time |
5ms |
| Max. welding current |
800A |
| Auto welding mode |
N |
Y |
| Auto cooling fan |
N |
Y |
| Pulse LCD display |
N |
Y |
Y |
Y |
N |
Y |
| Current LCD display |
Y |
Y |
Y |
Y |
N |
N |
| Led light |
Y |
| Pressure adjuster |
Y |
| Requirement of Earth Leakage Circuit Breaker |
40A |
| Packing list |
| Main machine |
1pc |
| Copper welding rods |
2 pairs |
| Battery fixture(6 section) |
1 pc |
| Foot pedal |
1 pc |
| Fuse(30A) |
2 pcs |
| 70B welding pen |
N |
1 pc |
| Welding pins replacement for 70B |
N |
1 pair |
| Iron soldering station & soldering pen |
N |
1 set |
| Lithium-ion battery pack charging cables |
N |
1 pair |
N |
| Mini grinder (for polishing copper rods) |
N |
1 pc |
| USB cable |
N |
1 pc |
| Hexagon wrench |
1 pc |
| 0.15x8x100mm(pure nickel strip) |
30 pcs |
| 0.15x5x100mm(nickel plated strip) |
30 pcs |
| 0.1x4x100mm(nickel plated strip) |
30 pcs |
| 0.2x5x100mm(nickel plated strip) |
30 pcs |
| Physical information |
| Product dimension (LxWxH, inch) |
9.1x5.5x7.9 |
9.6x5.5x7.9 |
| Net weight (lbs) |
9.6 |
15.8 |
Welding pen cable cross sectional area: 16 mm2
Soldering iron temperature: 150°C ~ 450°C (up to 300°C within 7 seconds)
Soldering station power: 50 W
Output voltage: DC 20 V
Attention: This spot welder can be used to weld the nickel, nickel plated steel, nickel plated iron, iron and other alloys, but it can't be used to weld metal including copper and aluminum.
| Shipping details |
| US customers |
Processing time: 1 ~ 2 business days |
| Shipping time: 2 ~ 4 business days(Fedex Ground or USPS) |
| other countries |
Processing time: 1 ~ 2 business days |
| Shipping time: 3 ~ 7 business days(Fedex, DHL or TNT etc.) |
