Arc Welding Machine Manufacturer,Supplier and Exporter in India
Product Code : EL-WT-13011
Jlab Export is a leading Arc Welding Machine Manufacturer,and suppliers in India
An AC arc welding set for heavy stick welding, connected to a 230 V single phase or a 400 V two phase supply at 50 Hz. The welding current is set between 40 and 400 A, with 350 A available at 35% duty cycle and 265 A at 60%. It runs coated electrodes from 1.6 to 6 mm.
Specifications
| Supply | 230 V single phase or 400 V two phase, 50 Hz |
| Maximum absorbed power | 15 kW |
| Absorbed power at 60% | 11 kW |
| Power factor | 0.7 |
| No-load voltage (AC) | 52–71 V |
| Current range (AC) | 40–400 A |
| Maximum current (AC) | 350 A at 35% duty cycle |
| Current at 60% duty cycle | 265 A |
| Electrodes | 1.6–6 mm |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Welding Practicals with Coated Electrodes
A full welding course fits on this one set, from thin rods on light sections to thick rods on heavy plate. Trainees first lay a pad of beads in the flat position with a small Electrode, then weld fillet joints on lengths of Angle Iron. Later they butt weld thicker plate in several runs with a larger rod, cleaning between runs with the Wire Brush Set.
Each trainee wears a Welding Shield Flip Up Lens Type. Teachers use the rating plate to explain duty cycle, and why a long run near 400 A has to be followed by a rest.
Frequently Asked Questions
Why is AC useful when the arc wanders sideways?
That wandering is arc blow, caused by magnetic fields in the work. It is worst with DC, near the ends of a joint or on magnetised steel. On AC the current reverses many times a second, so the arc wanders much less. Moving the earth clamp also helps.
What can I weld with a 40–400 A range?
The low end suits thin sections with 1.6 mm rods. The top end drives 6 mm electrodes for thick plate and heavy fillet welds. Most training work on mild steel plate falls in the middle of the range.
Why are there two duty cycle figures?
Duty cycle falls as the current rises. The set gives 350 A for 35% of a 10 minute period, or 265 A for 60% of it. For long beads, keep the current at or below the 60% figure.
What does a power factor of 0.7 mean?
It compares the useful power with the power drawn from the mains. At 0.7, the supply carries more current than the kW figure alone suggests. Give the set its own heavy duty circuit, with cable, fuse and isolator sized by an electrician for the full input current.
Do all electrodes run on AC?
Most general purpose rutile electrodes run well on AC. Some basic low-hydrogen rods and some special electrodes are made for DC only, so read the electrode packet before buying rods for an AC set.
Other Arc Welding Equipment
- Portable Arc Welding Machine (portable DC inverter)
- Shielded Metal Arc Welding Machine
- Manual Metal Arc Welding Machine
- Welders Apron
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Last updated: 6 November 2026