CO2 MIG Welding Machine
Digital DSP-controlled CO2 MIG welding machine with 500 A output for heavy fabrication welding.
Also known as
This machine is often called by these names or searched with these phrases.
Key features at a glance
Technical Specifications — NB-500
| Control method | Full digital DSP control |
|---|---|
| Input voltage | 3-phase 380V ±20% (300–560V) |
| Input frequency | 50 ~ 60HZ |
| Input capacity | 24KVA |
| Power factor | 0.93 |
| Efficiency | 90% |
| Rated open-circuit voltage | 75V |
| Set current range | 30 ~ 500A |
| Set voltage range | 12 ~ 45V |
| Rated duty cycle | 60% 500A@40° 100% 500A@25° |
| Welding material type | Carbon steel / stainless steel |
| Welding method | Solid wire, flux-cored wire, coated electrode |
| Wire diameter | Φ0.8-Φ1.6 |
| Welding sequence | No crater fill / crater fill / repeated fill / spot weld |
| Arc characteristics | —10 ~ +10 |
| Cooling method | Forced air cooling |
| Wire feed speed | 1.4~21m/min |
| Insulation class | H |
| Protection rating | IP23S |
| Machine environment | -10C°~ +50C° |
Compare with related models
Where this machine works
High-rise construction
CNC bending and shearing lines for beams, columns and slab reinforcement.
Precast & prefab plants
Five-head stirrup and forming machines for mass production of cage components.
Bridges & tunnels
Arc benders for tunnel lining, bridge reinforcement and large-radius bends.
Rebar fabricators
Straightening, cutting and thread rolling for custom fabrication shops.
Quality, export packing & after-sales
Run-test
Every machine is run-tested under load and checked against its specification sheet before packing.
Export crating
Anti-rust treatment, film wrapping and reinforced wooden crating protect the machine for sea freight.
Shipping methods
Standard container — small and medium machines (cutters, stirrup machines, welders).
After-sales support
Documentation, remote guidance via video or WhatsApp, and spare parts supply after delivery.
Buying questions
What is your MOQ?
MOQ is 1 machine. For production lines, we quote the complete set. Volume buyers get better pricing.
Do you provide after-sales support?
Yes. We provide documentation, remote guidance via video/WhatsApp, and spare parts supply for ongoing maintenance.
