Product Description
The portable spot welding machine uses the resistance heat
generated by the current flowing through the weldment as a heat
source for welding under pressure. Mainly used for spot welding of
low-carbon steel parts of thin plate structures.
Portable spot welding machines are generally suspended in the air
and connected to the welding tongs through flexible cables. The
welding tongs of the portable spot welding machine have various
structural forms to choose from, so the portable spot welding
machine has a strong adaptability for large workpieces that are
inconvenient to move, workpieces with complex shapes, or workpieces
that must be stuck on the fixture for spot welding. In automobile
body spot welding, the spot welding process for large sheet metal
boxes has a wide range of applications and is an indispensable
welding equipment.
| 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. The machine can rotate 360°as the turntable is configured with
bearings.
2. Customized welding tongs, the longest welding arm is 1300mm and
the shortest is 220mm.
3. The connected power lines, control lines, water inlet pipes,
water outlet pipes, and gas pipes are uniformly bundled together.
Protective plates are provided on both sides of the transformer and
cylinder to fully protect the safety of the operator.
4. The transformer is designed according to European technical
standards, in line with international standards, and has advanced
product technology. It adopts epoxy resin overall vacuum casting,
Class F insulation, and IP65 high protection level. With
overheating protection function, high efficiency, low magnetic
loss, and high output power.
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
Overview of product structure
This series of welding machine is mainly composed of welding
transformer, gas circuit (pressurization) system, water circuit
(cooling) system, welding tongs, resistance welding controller and
motion mechanism. According to the shape of the workpiece to be
welded and the operating conditions of the welding machine, the
welding tongs have a variety of structural forms.
X type welding machine is suitable for welding on horizontal plane
or near horizontal plane, and C type welding machine is suitable
for welding on vertical plane or near vertical plane. The shape of
welding tongs can be designed according to user requirements.
Use & Installation
Product Application
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.
