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Commercial-type ARC welding machines are heavy transformer welders built for long welding jobs with stick electrodes. Fabrication shops, steel works, gate and grill makers, construction sites and repair shops use them for daily welding of steel.
How to choose a commercial ARC welding machine
- Amperage: 160A to 200A machines handle common 2.5mm and 3.2mm electrodes for gates, grills and light fabrication. 300A suits thicker plate and larger electrodes, and 500A is for heavy structural work.
- Coil: pure copper coils (Yamato, Power Star, Zekoki Cu) are the usual choice for long, continuous welding. The Yamato aluminium coil model is a lighter, lower-cost option.
- AC or AC/DC: most units here are AC. The Daiden AC/DC machine adds DC output, which gives a smoother arc and works with more electrode types.
- Power supply: large machines need a proper circuit and breaker. Dual-voltage models such as the Yamato 500A Dual Voltage can run on two supply voltages, so check what your site has.
Popular commercial welding machines at KHM Megatools
| Model | Brand | Output | Good for |
|---|---|---|---|
| ZX1-160B / ZX1-175B / ZX1-200B | Zekoki | 160A to 200A, copper | Gates, grills and light fabrication |
| PS-200 / PS-300 | Power Star | 200A / 300A, pure copper | Daily shop welding |
| 200A / 300A Commercial Type | Yamato | Pure copper coil | General fabrication and repair |
| Aluminum Coil Commercial Type | Yamato | AC, aluminium coil | Lighter, budget-conscious setups |
| AC 200A / 300A / 500A | Daiden | AC | Shops choosing by job size |
| AC/DC ARC | Daiden | AC/DC | Welders who need DC output |
| 500A / ZX1-500A | Yamato / Zekoki | 500A | Heavy structural work and thick plate |
Commercial transformer or inverter?
Commercial transformer welders are heavy but simple, and they handle long welding runs. Inverter welders are lighter and easier to carry between sites. Compare all ARC (SMAW) welding machines, and complete your setup with welding rods, an electrode holder, a welding mask and welding gloves.
All products from KHM Megatools are genuine and covered by the manufacturer's warranty where applicable.
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