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Projection Industrial Resistance Aluminum Water-Cooled Multi Point Spot Welder Semi Automatic Welding Equipment for Fuel Tank
Product Introduction:
The durable version of the welding machine adopts a high rigidity body structure, which can withstand the huge reaction force generated by the synchronous pressurization of the upper and lower ring electrodes. It will not deform after long-term use, ensuring the long-term stability of electrode alignment accuracy. The 7 fixed protrusions are processed and formed as a whole with the annular electrode, without the problem of independent electrode head loosening or displacement after wear, with good structural rigidity and long service life. The selection margin of welding transformers is sufficient, and the secondary is connected to the upper and lower electrode coils in a low impedance manner through a soft copper strip, reducing heat generation and electrical energy loss. The forced water cooling channel runs through the entire annular electrode ring, continuously taking away the heat from the root of the convex point and the contact surface, effectively preventing electrode annealing and surface oxidation, and extending the service life of the electrode. The controller is equipped with multiple electronic protections for overcurrent, overvoltage, and overheating. In case of abnormalities, it automatically cuts off the output to protect transformers and power devices, ensuring long-term stable operation of the equipment.
Features:
1. The body adopts a high stiffness structural design, which can withstand the huge reaction force generated by the synchronous pressurization of the upper and lower ring electrodes. The body will not deform after long-term use, ensuring the long-term accuracy of the alignment of the upper and lower electrodes.
2.7 fixed protrusions are integrated with the annular electrode in a single molding structure, without problems such as loose or worn electrode heads, displacement or poor contact. The overall rigidity is good, the impact resistance is strong, and the service life is long.
3. The selection margin of the welding transformer is sufficient, and the secondary circuit is connected to the upper and lower electrode coils in a low impedance manner through a soft copper strip, effectively reducing power loss and system heating, and extending the service life of the transformer.
4. The forced water cooling channel runs through the entire annular electrode ring, covering the root of the convex points and the contact surface, timely removing the accumulated heat from continuous welding, effectively preventing electrode annealing, oxidation, and surface adhesion.
5. The controller has multiple electronic protection functions such as overcurrent, overvoltage, and overheating. It automatically cuts off the output under abnormal working conditions to protect transformers and power devices from damage. At the same time, industrial grade durable pneumatic components are selected to ensure long-term reliable operation.
Detailed Images:

Fixed Convex Point Annular Electrode Assembly: One annular electrode ring on each top and bottom, with 7 fixed convex points on the ring. During welding, the upper and lower circles are pressed synchronously, and power is applied simultaneously at 7 points, forming 7 welding points at once. Internally water-cooled, quick change overall, compatible with different specifications of fuel tanks.

Cylinder: Adopting aluminum alloy cylinder barrel, low damping sealing ring, and light friction ring combination with hydraulic cylinder, the surface is wear-resistant and has a long service life, achieving extremely high dot speed, electrode pressurization, smooth and fast.

Gas Storage Tanks: The projection and spot welding machine is equipped with a dedicated gas storage tank, which is beneficial for reducing welding pressure fluctuations and ensuring stable welding force.

Waterway Components: All waterway components undergo surface treatment to prevent rusting, and waterway drainage is independently discharged to the water tank. Based on the outflow situation, blockages in the waterway can be observed and eliminated.
Welding Test:


Welding Workpiece: Fuel tank shell+metal ring
The workpiece consists of a half section oil tank shell and a matching metal ring. Place the fuel tank shell facing upwards on the lower electrode platform, and press the metal ring onto the upper electrode accordingly. After welding, the metal ring is firmly fixed to the inner wall of the fuel tank opening, meeting the sealing and subsequent assembly requirements.
General Structures:

Technical Parameters:
|
Model Item
|
DN-40
|
DN-63
|
D(T)N-80
|
D(T)N-100
|
D(T)N-125
|
D(T)N-160
|
D(T)N-200
|
|
Rated power At 50%(KVA)
|
40
|
63
|
80
|
100
|
125
|
160
|
200
|
|
Rated primary power(V)
|
380
|
380
|
380
|
380
|
380
|
380
|
380
|
|
Secondary Voltage(V)
|
5.2
|
6.7
|
7.9
|
8.3
|
8.6
|
9.1
|
10.6
|
|
Rated frequency(HZ)
|
50/60
|
50/60
|
50/60
|
50/60
|
50/60
|
50/60
|
50/60
|
|
Max.Short Circuit Current(KA)
|
14
|
15
|
16
|
18
|
20
|
28
|
34
|
|
Max. weld power(KVA)
|
62
|
86
|
170
|
280
|
300
|
330
|
410
|
|
Throat(mm)
|
500
|
500
|
630
|
630
|
630
|
630
|
630
|
|
Max.Froce at electrodes(N)
|
6000
|
6000
|
10000
|
10000
|
10000
|
12000
|
12000
|
|
Working stroke(mm)
|
20
|
20
|
30
|
40
|
40
|
50
|
50
|
|
Cooling Water Consumpion 2.5bar(L/min)
|
6
|
6
|
8
|
8
|
8
|
10
|
10
|
|
Electrodes tlp(mm)
|
Φ13*45
|
Φ13*45
|
Φ16*45
|
Φ16*45
|
Φ16*45
|
Φ20*45
|
Φ20*45
|
|
Arms(mm)
|
Φ50*150
|
Φ50*150
|
Φ80*220
|
Φ80*220
|
Φ80*220
|
Φ80*220
|
Φ80*220
|
|
Projection Clamping Plate(mm)
|
125*125
|
125*125
|
200*200
|
200*200
|
200*200
|
200*200
|
200*200
|
|
Max.Welding Capaciry(mm)
|
2.5+2.5
|
3+3
|
4+4
|
4.5+4.5
|
5+5
|
5+5
|
6+6
|
Scene Images:


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FAQ:
1. When can you arrange shippment?
The shippment is 15 days after getting deopsit, but customized machines should be more than 25 days.

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