# Classification
According to different configurations, this series can be distinguished by power source: AC and inverter DC; by welding wheel installation direction: horizontal and longitudinal; by quality grade: high‑end and standard models, all belonging to the professional Seam Welding Machine category.
# Features
1. Equipped with a 3‑phase variable frequency motor, it ensures stable and uniform welding speed, easy parameter adjustment, and reliable running stability.
2. The welding circuit loop adopts internal water cooling, while the welding wheels used as electrodes are cooled by external water circulation.
3. The conductive rotating parts adopt an embedded silver bushing structure. The conductive base is sealed oil‑lubricated and water‑cooled, so the silver bushings can rotate flexibly without locking.
4. This Automated Seam Welding System provides two options: horizontal type (H) and longitudinal type (L) to match various welding processes.
# Core Advantages Compared with Similar Products
1. The conductive rotating parts adopt embedded silver bushings, with sealed oil lubrication and water cooling on the base, effectively ensuring smooth rotation and avoiding jamming.
2. The rotating shaft inside the conductive base is treated with nanometer ceramic spraying, which has better wear resistance than ordinary nylon materials and greatly extends the service life of the machine.
3. The cylinder guide bar is square instead of round, which can effectively prevent the welding wheel from skewing and achieve more stable and higher welding quality.
# Machine Composition
1. Machine body: Adopts vertical reinforced structure, welded with high‑quality thick steel plates.
2. Transformer: Made of 15000 gauss high‑permeability silicon steel sheets, with internal water cooling and full copper alloy core, low impedance, high power utilization, 50% duty cycle for long‑time welding, large output power, long service life, low noise and compact structure.
3. Solenoid: From Taiwan, with high speed and reliable quality.
4. Cylinder: Made of high‑precision anti‑friction hard duralumin, rust‑proof, low friction, low noise and fast pressure application, thus reducing welding spatter.
5. Welding wheels: Made of CuCrZr material with strong wear resistance, water‑cooled to extend service life.
6. Switches
7. Air source processor
8. Conductive base with silver bushing structure
9. Controller: Sunke, a top Chinese brand
10. Motor: Mitsubishi from Japan
11. Cooling water system
12. Compressed air system
13. Monitoring and alarm system
# Applications
This Continuous Seam Welding Equipment is widely used in metal processing, electrical appliances, fuel tanks, water tanks and other industries. It is especially suitable for seam welding of basins, barrels, tanks and other sealed thin‑walled containers made of low‑carbon steel or stainless steel. | Model | FN-80-H(L) | FN-100-H(L) | FN-160-H(L) |
| Rated capacity | KVA | 80 | 100 | 160 |
| Primary voltage | V/PHASE | 380/1 | 380/1 | 380/1 |
| Frequency | HZ | 50 | 50 | 50 |
| Max. short circuit current | KA | 26 | 30 | 40 |
| Electrode stoke | mm | 100 | 100 | 100 |
| Welding speed | m/min | 0.7-3.9 | 0.7-3.9 | 0.7-3.9 |
| Electrode pressure | N | 6000 | 6000 | 7800 |
| Welding capacity(low carbon steel) | mm | 1.2+1.2 | 1.5+1.5 | 2.0+2.0 |
| Voltage of motor | V/PHASE | 380/3 | 380/3 | 380/3 |
| Power of motor | W | 550 | 750 | 750 |
| Cooling water flux | L/min | 8 | 8 | 10 |
| weight | Kg | 380 | 510 | 630 |
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