The OTC DAIHEN P500L welding machine is widely used in various steel structure welding applications due to its excellent arc control performance. For horizontal fillet welds in CO₂ gas shielded welding, the parameter settings directly determine the weld formation quality. Below is the standard welding process parameter table for the P500L, compiled for technical reference.
OTC P500L CO₂ Horizontal Fillet Weld Parameter Quick Reference Table
The data in the table below applies to different plate thicknesses. Please fine-tune these settings based on actual working conditions before operation:
| Plate Thickness t (mm) |
Leg Length L (mm) |
Wire Diameter (mm) |
Current (A) |
Voltage (V) |
Speed (cm/min) |
Gas Flow (L/min) |
|---|---|---|---|---|---|---|
| 1.2 | 2.5-3.0 | 0.9/1.0 | 70-100 | 18-19 | 50-60 | 10-15 |
| 1.6 | 2.5-3.0 | 0.9-1.2 | 90-120 | 18-20 | 50-60 | 10-15 |
| 2.0 | 3.0-3.5 | 0.9-1.2 | 100-130 | 19-20 | 50-60 | 15-20 |
| 2.3 | 3.0-3.5 | 0.9-1.2 | 120-140 | 19-21 | 50-60 | 15-20 |
| 3.2 | 3.0-4.0 | 0.9-1.2 | 130-170 | 19-21 | 45-55 | 15-20 |
| 4.5 | 4.0-4.5 | 1.2 | 190-230 | 22-24 | 45-55 | 15-20 |
| 6.0 | 5.0-6.0 | 1.2 | 250-280 | 26-29 | 40-50 | 15-20 |
| 9.0 | 6.0-7.0 | 1.2 | 280-300 | 29-32 | 35-40 | 15-20 |
| 12.0 | 7.0-8.0 | 1.2 | 300-340 | 32-34 | 30-35 | 20-25 |
Important Parameter Setting Notes
- Shielding Gas: The CO₂ flow rate needs to increase with plate thickness. It is recommended to appropriately increase the gas flow during thick plate welding.
- Welding Speed: Moving too fast will result in underfilled weld formations, while moving too slow can easily cause overheating deformation.
- Original Consumables: Using genuine original contact tips and nozzles helps maintain a stable arc.