Product Description
Portable spot welding machine uses the resistance welding method in
which welding parts are assembled into lap joints and pressed
between two columnar electrodes, and the base metal is melted by
resistance heat to form solder joints.
| Item/models | Unit | DN2-31X | DN2-31C | DN2-40X | DN2-40C | DN2-63X | DN2-63C |
| power at 50% | KVA | 31 | 31 | 40 | 40 | 63 | 63 |
| Maximum short circuit current | KVA | 14 | 14 | 18 | 18 | 20 | 20 |
| Secondary unload voltage | V | 5.58 | 5.58 | 6.8 | 6.8 | 7.9 | 7.9 |
| Voltage at 50Hz/60Hz | V | 380 | 380 | 380 | 380 | 380 | 380 |
| Distance between the arms | MM | 168-288 | 100 | 168-328 | 100 | 168-428 | 100 |
| Max.strength at electrodes | N | 3000 | 3000 | 3500 | 3000 | 3500 | 3000 |
| Working stroke | MM | 15-45 | 15-25 | 15-45 | 15-25 | 15-45 | 15-25 |
| Max.stroke of cylinder | MM | 70 | 50 | 100 | 50 | 100 | 50 |
| Max. arm length | MM | 750 | 350 | 1000 | 450 | 1100 | 500 |
| Compressed Air supply | MPA | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Max thickness of mild steel sheet with min.length s arm | MM | 3+3 | 3+3 | 4+4 | 4+4 | 5+5 | 5+5 |
| With 500mm arms | MM | 2+2 | 2+2 | 3+3 | 3+3 | 3+3 | 3+3 |
| With maximum length arms | MM | 1.2+1.2 | 1.2+1.2 | 2+2 | 1.8+1.8 | 2.0+2.0 | 2.0+2.0 |
| Cross wire maximum | MM | 14+14 | 14+14 | 16+16 | 16+16 | 20+20 | 20+20 |
| Cooling water pressure drop | MPA | 0.2-0.3 | 0.2-0.3 | 0.2-0.3 | 0.2-0.3 | 0.2-0.3 | 0.2-0.3 |
| Cooling water flow | L/MIN | 4 | 4 | 4 | 4 | 4 | 4 |
♦ Distance,angle and length of welding arm can be made according to
customers' requests.
Features:
1. Light weight, easy to operate and save electricity
2. Compact structure and easy maintenance
3. The turntable is equipped with bearings and rotates 360°
4. Customized welding tongs, the longest welding arm is 1300mm and
the shortest is 220mm
5. Less wearing parts and high cost performance
Working Principle
The workpiece is pressurized and energized between the upper and
lower electrodes, and having resistance welding.
When the resistance of the welding part is R (Ω), the welding
current is I (A), and the power on time is t (sec), according to
the formula: the current I that the metal material with a certain
resistance value R passes through within a certain time t heats up
due to the resistance, and the heat generated is Q. The metal
resistance current is used to heat the molten metal, and then the
metal is cooled, crystallized and connected under pressure. This is
called resistance welding.
Welding Arm Can Be Customized
Welding Process
a) Pressurization time: It is appropriate to electrify the welding
after the workpiece is firmly pressed by the electrode. The welding
process is started before the workpiece is firmly pressed by the
electrode, which is easy to cause burning loss and splash of the
electrode or workpiece. The length of the working stroke of the
electrode, the movement of the pressurizing mechanism, the
deformation of the workpiece and other factors affect the setting
of the pressurization time. Generally, the pressurization time is
set to 15-20 cycles;
b) Holding time: used for metal cooling and recrystallization,
generally set as 15-20 cycles;
c) Rest time: It is mainly used for continuous spot welding. The
appropriate rest time can ensure the effective rest of the welding
machine and operators.
Frequently Asked Questions
1. When can you arrange shippment?
The shippment is 15 days after getting deopsit, but customized
machines should be more than 25 days.
2.Do you inspect the finished products?
Yes, each step of production products will be came out inspection
by QC department before shipping.
3.Are you factory?
Yes, we are factory, all machine is made by ourself and we can
provide customize service according to your requirement.
4.How to buy your Spot Welder?
Please send us inquiry to our email, and we will give you a PI to
send us payment.
5. How to contact you?
You can send a mail for us and call us.
6.How will you deliver my goods to me?
We always ship by air and sea in the mean time.
7.How about your transport packing? Is it possible to damage the
machine during the transportation?
We have rich experience on international transportation. All the
packing are extra thickness carton filling with protective PE foam
and waterproof membrane. No damage happened during transportation
until now.
8.What kind of payment do you accept?
T/T, Western Union, PayPal, .L/C, D/A, etc.
