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STERCO D.C. Welding Rectifiers Forced Air Cooled are used as power Source for manual metal Arc Welding (MMAW) jobs with bare & coated electrodes suitable for ferrous and non ferrous metals. These welding rectifiers are also used as an alternative to DC welding generators and even have an edge over DC welding generator as there are no moving parts in welding rectifier except the cooling fan which ensures almost nil maintenance cost, besides its low initial cost as compared to generator. These rectifiers can also be used as power source for plasma Arc cutting gas shielded arc welding & for Tungston Electrode (TIG) welding to do the welding of stainless steel copper alloys. Submerged Arc Welding and also suitable for carbon Air Arc Gouging.
TRANSFORMER Specially designed Transformer conforming to IS : 4559 1993 having core of high grade electrical steel Welding current is regulated by latest transconductor type control continuous current variations and 3 phase full waive bridge circuit used in current Rectifier for higher efficiency and steady form, Welding rectifiers are mounted on three solid rubber wheels (Front wheels swivelling & steerable type by means of draw bar) for easy portability, bye bolts had been provided to lift the machine. PROTECTION PROVIDED
OPTIONAL Remote control with required cable length, voltmeter, Amp. meter and a set of welding accessories etc. can also be provided at an extra cost. ADVANTAGES
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| Technical Specifications | ||||||
| Model | SDC - 2 | SDC - 3 | SDC - 4 | SDC - 5 | SDC - 6 | |
| Maximum Welding Current at 60% duty cycle | Amps. | 200 | 300 | 400 | 500 | 600 |
| Minimum Welding Current | Amps. | 40 | 50 | 60 | 80 | 100 |
| Open Circuit | Volts. | 75 | 75 | 75 | 80 | 80 |
| Welding Voltage | Volts. | 21-28 | 22-32 | 23-36 | 23-40 | 24-44 |
| Maximum Welding Current at 100% duty cycle | Amps. | 150 | 220 | 300 | 375 | 450 |
| KVA as per ISI | KVA | 5.6 | 9.6 | 14.4 | 20 | 26.4 |
| Maximum KVA | KVA | 13 | 19.5 | 26 | 35 | 49 |
| Cooling | Forced Air Cooled | |||||
| Input supply | 380/415/440 volts Balance load-3 phase, 3 lines, 50 Hz. | |||||
| Maximum Electrode Size | MM | 4 | 5 | 6.3 | 8 | 8 |
| Minimum Electrode Size | MM | 2.5 | 2.5 | 3.15 | 4 | 4 |
| Insulation Class | F | F | F | F | F | F |
| Power Factor with Capacitor | 0.8 at half load | |||||
| Recommended Power Factor Capacitor | KVAR | 4 | 6 | 8 | 10 | 12 |
| Current Regulator | Stepless | |||||
TERCO D.C. Welding Rectifiers Forced Air Cooled are used as power Source for manual metal Arc Welding (MMAW) jobs with bare & coated electrodes suitable for ferrous and non ferrous metals. These welding rectifiers are also used as an alternative to DC welding generators and even have an edge over DC welding generator as there are no moving parts in welding rectifier except the cooling fan which ensures almost nil maintenance cost, besides its low initial cost as compared to generator. These rectifiers can also be used as power source for plasma Arc cutting gas shielded arc welding & for Tungston Electrode (TIG) welding to do the welding of stainless steel copper alloys. Submerged Arc Welding and also suitable for carbon Air Arc Gouging.
TRANSFORMER
Specially designed Transformer conforming to IS : 4559 1993 having core of high grade electrical steel Welding current is regulated by latest transconductor type control continuous current variations and 3 phase full waive bridge circuit used in current Rectifier for higher efficiency and steady form, Welding rectifiers are mounted on three solid rubber wheels (Front wheels swivelling & steerable type by means of draw bar) for easy portability, bye bolts had been provided to lift the machine.
PROTECTION PROVIDED
OPTIONAL
Remote control with required cable length, voltmeter, Amp. meter and a set of welding accessories etc. can also be provided at an extra cost.
ADVANTAGES
Technical Specifications
| Model | SDC - 2 | SDC - 3 | SDC - 4 | SDC - 5 | SDC - 6 | |
|---|---|---|---|---|---|---|
| Maximum Welding Current at 60% duty cycle | Amps. | 200 | 300 | 400 | 500 | 600 |
| Minimum Welding Current | Amps. | 40 | 50 | 60 | 80 | 100 |
| Open Circuit | Volts. | 75 | 75 | 75 | 80 | 80 |
| Welding Voltage | Volts. | 21-28 | 22-32 | 23-36 | 23-40 | 24-44 |
| Maximum Welding Current at 100% duty cycle | Amps. | 150 | 220 | 300 | 375 | 450 |
| KVA as per ISI | KVA | 5.6 | 9.6 | 14.4 | 20 | 26.4 |
| Maximum KVA | KVA | 13 | 19.5 | 26 | 35 | 49 |
| Cooling | Forced Air Cooled | |||||
| Input supply | 380/415/440 volts Balance load-3 Phase, 3 lines, 50 Hz. |
|||||
| Maximum Electrode Size | MM | 4 | 5 | 6.3 | 8 | 8 |
| Minimum Electrode Size | MM | 2.5 | 2.5 | 3.15 | 4 | 4 |
| Insulation Class | F | F | F | F | F | F |
| Power Factor with Capacitor | 0.8 at half load | |||||
| Recommended Power Factor Capacitor | KVAR | 4 | 6 | 8 | 10 | 12 |
| Current Regulator | Stepless |
Note: We reserve the right to change the design and modify specifications at the discretion of our technical department.
