| Parameter / Specifications | Units | WR20TH | WR30TH | WR40TH | WR60TH |
|---|---|---|---|---|---|
| Input Power Supply | Volts / Hz | 415 V ± 10%, 3-Phase, 50/60 Hz AC | |||
| Open Circuit Voltage (OCV Max) | V DC | 80 V | 80 V | 95 V | 95 V |
| Welding Current Range | Amps DC | 10 – 200 A | 10 – 300 A | 10 – 400 A | 10 – 600 A |
| Max Current @ 60% Duty Cycle | Amps DC | 200 A | 300 A | 400 A | 600 A |
| Input KVA Rating | KVA | 12 KVA | 17 KVA | 22 KVA | 40 KVA |
| Current Regulation Control | Type | Stepless Solid-State Thyristor Control (With Remote Controller Unit) | |||
| Insulation Class & Transformer Type | Class | Class H Insulation (100% Double-Enameled Copper Wound) | |||
| Cooling System | Type | High-CFM Industrial Forced Air Cooling Fan System | |||
| Enclosure Dimensions (L × W × H) | mm | 790 × 310 × 690 | 945 × 380 × 770 | 945 × 380 × 770 | 970 × 460 × 830 |
| Approximate Net Weight | kg | 95 kg | 130 kg | 140 kg | 180 kg |
| Manufacturing Standard | Standard | Conforms to IS 4559 : 1993 / ISO 9001:2015 International Standards | |||
Advanced thyristorized phase control ensures real vertical characteristic curves, guaranteeing stable arc performance, smooth metal droplet transfer, and precise current delivery even over long welding cables.
Integrated electronic 'Hot Start' provides instant arc ignition without electrode sticking. The anti-stick mechanism automatically reduces short-circuit current if an electrode fuses to the workpiece.
Equipped with thermal runaway protection sensors and H.F. interference suppression, safeguarding internal thyristor modules against voltage spikes, continuous heavy overloads, and high ambient temperatures.
Encased in a powder-coated mild steel chassis treated for rust prevention. Built to operate continuously in harsh environments including cement mills, offshore yards, and dusty steel plants.
Supplied with a robust remote control pendant unit, enabling welders to adjust current output directly at the welding location up to 30+ meters away from the primary machine.
Optimized magnetic core design with Class H copper windings minimizes open-circuit electrical losses, leading to lower energy costs during high-volume production shifts.
Delivers steady DC arc performance for thick plate butt welds, hull jointing, and structural stainless or carbon steel assemblies requiring radiography-quality weld beads.
Ideal for boiler construction, bridge erection, crane girder fabrication, and pressure vessel manufacturing utilizing continuous E7018, E6010, and alloy electrodes.
Engineered to handle severe voltage fluctuations and extreme dust conditions commonly present in heavy metal process lines, quarry repair, and mill maintenance.
A: Thyristorised rectifiers convert AC to smooth DC current with solid-state precision. This eliminates arc spatter, provides stepless fine tuning, and maintains constant current output regardless of arc length or input voltage fluctuations.
A: Due to static solid-state thyristors and forced air cooling, routine maintenance is limited to clearing dust from cooling louvers and checking output cable lugs periodically. No mechanical moving parts exist inside the transformer core.
A: Yes. While standard units are configured for 415V 3-Phase 50/60Hz, Canary Electricals customizes transformer primary tappings for 380V, 440V, or 480V 3-Phase supplies to meet specific country grid standards upon request.
A: Standard models are dispatched within 1 week. Export units are wrapped in moisture-barrier film and packed inside heavy-duty wooden crates or steel-banded pallets suitable for FCL and LCL ocean transport.
Contact our technical export engineers to receive complete technical data sheets, dimensional drawings, pricing schedules, and international logistics details.
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