I Description of transformer radiator making machines
This line is developed by ourselves, adopting technology from Germany GEORG and Canadian MTM.
Transformer radiator is usually for those capacity more than 5MVA which corrugated fin tanks are not suitable.
Transformer radiator making machines includes:
No. |
Name |
Remarks |
1 |
Transformer radiator fin panel forming and welding line |
|
2 |
Fin panel airproof tester |
fill compressed air and immersed in water (pool made at site) |
3 |
Fin panel & header pipe assembling machine |
Assemble fin panels to header pipes |
4 |
Universal rotatable welding positioner |
welding fin panels to header pipes |
5 |
Flange welding rack |
welding flanges to radiator |
6 |
Radiator leakage tester |
fill compressed air and immersed in water (pool made at site) |
7 |
Header pipe punching machine |
making header pipes |
8 |
Radiator painting line |
painting internal and external surfaces |
II Composition of transformer radiator fin panel making machine
The production line described below is for transformer radiator fin panel production, which is comprised of:
1- Automatic hydraulic expansion decoiler
2- Automatic oil channel forming & head punching machine
3- Two-pieces joining device
4- Multi-head oil channel spot welding machine
5- Double-side seam welding machine
6- Terminal welding machine
7- Double-side trimming machine
8- Terminal trimming machine
9- Fin panel levelling machine
10-Automatic fin panel stacking machine
III Main features of transformer radiator fin panel making machine
- Flexible capability: applicable for radiator fin panel width 535mm, 520mm, 480mm, 320mm, 310mm
- Automatic fin panel size selection on roll forming machine: forming rollers are selected on HMI, very simple and conenient,
no need dismantling machine for changing forming dies as Canadian machine
- Whole line full automatic, only 3~4 supervisors
IV Main technical data of transformer radiator fin panel making mchine
No. |
Item |
Data |
1 |
Applicable radiator panel width |
545mm, 530mm, 480mm, 320mm, 310mm |
2 |
Oil channel numbers |
6, 5, 3 |
3 |
Applicable radiator panel center distance |
500~4000mm |
4 |
Center distance error |
+/-0.1mm |
5 |
Single piece bearing pressure |
positive pressure≥ 0.15MPa; negative pressure≥133Kpa. No deformation |
6 |
Cold roll steel material |
ST12, SPCC, DC01 |
7 |
Cold roll steel width |
550 / 535 / 495 / 335 mm |
8 |
Cold roll steel thickness |
1.0~1.2mm |
9 |
Hydraulic decoiler capacity |
5T coil, OD 1500mm, ID 480-520mm, 2.2kW |
10 |
Motor power for roll forming section |
7.5kW (driving) + 15kW (hydraulic) |
11 |
Motor power for joining section |
0.75kW + 0.37kW |
12 |
Servo feeding motor power for spot welding section |
1kW |
13 |
Welding transformer power for spot welding |
125kVA x 4 |
14 |
Welding transformer power for seam welding |
160kVA x 2 |
15 |
Welding transformer power for terminal welding |
200kVA x 1 |
16 |
Motor power for side trimming section |
5.5kW |
17 |
Total length of the line |
50m |
18 |
Whole line production speed |
1.5m/min |