New 
OIL COOLED 600AMP AC WELDING MACHINE
Heavy Duty Copper Winding Welding Transformer – Built for Indian Railways & Industrial Fabrication
The KOKO-TAWA Oil Cooled 600Amp AC Welding Machine is a high-performance, oil-immersed, copper winding welding transformer designed for continuous heavy-duty welding in the most demanding environments.
Developed with rugged Indian industrial conditions in mind, it features:
- 100% Duty Cycle for uninterrupted operation
- Moving Core Regulator Mechanism
- Optimized performance for railways, petroleum, refineries, steel structures, and infrastructure projects
Now part of the ELECTRA KOKO TAWA portfolio, this machine is specifically suited for:
- Thick-section welding
- Multi-pass fabrication
- Heavy-duty applications required by Indian Railways and allied sectors
Key Features
- Copper Winding:
- Provides superior thermal efficiency.
- Ensures long service life for continuous operations.
- Oil-Immersed Cooling:
- Designed for continuous operation without overheating.
- Maintains optimal performance during long fabrication cycles.
- Moving Core Technology:
- Durable current adjustment system.
- Requires minimal maintenance for industrial use.
- 100% Duty Cycle:
- Enables nonstop welding during long work durations.
- Ensures high efficiency and productivity.
- Indian Railways Standard:
- Trusted performance in workshops and depots nationwide.
- Complies with industry benchmarks for safety and reliability.
- High Arc Stability:
- Smooth welding with deep penetration for thick metals.
- Minimizes spatter and improves weld quality.
- Industrial-Grade Build:
- Resistant to harsh Indian weather and site conditions.
- Engineered for heavy-duty industrial environments.
- Simple Operation:
- Manual knob regulation for easy control.
- Intuitive layout suitable for all skill levels.
Technical Specifications
| Parameter | Specification |
|---|---|
| Output Current Range | 60 – 600 A |
| Duty Cycle | 100% at 600 A |
| Input Voltage | 415V ±10%, 3 Phase, 50/60 Hz |
| Welding Voltage | 22 – 60 V |
| Cooling System | Oil-Immersed (Oil-Cooled Transformer) |
| Transformer Type | Copper Winding, Moving Core, Regulator Type |
| Open Circuit Voltage (OCV) | 70 V |
| Class of Insulation | Class H |
| Protection Class | IP21 |
| Weight | Approx. 275 – 320 kg |
| Dimensions (L×W×H) | 920 × 620 × 920 mm |
| Arc Control | Manual Tap Regulator |
| Construction | Heavy Duty Steel Fabricated Body |
Application
- Railway Coaches & Bogies.
- Steel Fabrication for Bridges, Structures & Towers.
- Petroleum Plants & Oil Refineries.
- Shipbuilding & Dockyard Welding.
- Power Plant Infrastructure.
- Large-Scale Fabrication Projects (Girders, PEBs, Tanks).
Accessories (Optional)
- Electrode Holder with Cable.
- Earth Clamp with Cable.
- Trolley Mount Kit.
- Welding Shield/Helmet.
- Heavy Duty Caster Wheels.
- Lifting Hooks.
Why Choose KOKO-TAWA 600A?
- 100% copper winding for reliable output.
- Tested and proven in Indian Railways projects.
- Designed to perform in high-heat & long-duration workloads.
- Built to last with easy service and minimal maintenance.
- Proudly made in India by Electra Koko Tawa Weld Pvt. Ltd.
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