Special Automatic Resistance Longituidinal Seam Welding Machine
1. Low Power Consumption
2. Water Cooling
3. Easy To Operate and Maintenance
Applications:
Widely used for lap seam welding for steel belts of mild steel, alloy steel and stainless steel.
Features:
- Single roller seam welding with PLC programmable control.
- Adopt stepless adjustment speed drive of three-phase, it is easy to adjust the welding speed steadily.
- All of the circuit of welder adopt the type of internal cooling, and the welding wheel adopts the type of external cooling.
- The main circuit adopts water cooling and high power SCR, quality is reliable, current output is stable.
- Welding machine types: longitudinal welding.
- According to different overlap of the melting cores, it could be divided into roll spot welding and air-tight seam welding.
- The main transformer adopts high-quality silicon steel sheet and compelling water cooling system, featured of high output power and low consumption.
- High-quality cylinders and pneumatic components guarantee the reliable and stable running of pneumatic system.
- It is suitable for lap seam welding welding of low carbon steel, stainless steel, alloy steel, etc.
Machine Details:

Technical Parameters:
| Model | FN-35 | FN-50 | FN-75 | FN-100 | FN-125 | FN-160 |
| Rated Capacity (KVA) | 35 | 50 | 75 | 100 | 125 | 160 |
| Input Voltage | Single Phase 380V 50Hz |
| Input Current (A) | 92 | 131 | 197 | 263 | 328 | 420 |
| Output No-load Voltage (V) | 4.2 | 5 | 6.1 | 7.2 | 8 | 8.5 |
| Rated Duty Cycle | 50% |
| Max. Welding Thickness (low carbon steel) (mm) | 1+1 | 1.5+1.5 | 2+2 | 2.5+2.5 | 3+3 | 3.5+3.5 |
| Welding Speed | 0.8-3.2m/min |
| Electrode Stroke | 20mm |
| Flow of Cooling Water | 120L/h |
| Weight of Complete Machine (Kg) | 470 | 500 | 620 | 720 | 810 | 930 |