Circumferential seam welder for Transformer Corrugated Tank
# Classification
Featuring multiple configuration options, this equipment is sorted by power supply into AC and inverter DC models, by welding wheel layout into horizontal and longitudinal types, and by quality standard into high-grade and basic versions, all as part of our dedicated Seam Welding Machine series.
# Features
1. Supported by a 3-phase variable-frequency motor, the unit runs with consistent welding speed, simple operation adjustment, and outstanding stability.
2. Internal water cooling is applied to the welding circuit loop, and external water cooling is arranged for the welding wheels (electrodes).
3. The conductive rotating components adopt embedded silver bushings; the conductive base is sealed oil-lubricated and water-cooled to maintain flexible rotation and prevent jamming.
4. Designed to meet diverse production demands, this Automated Seam Welding System is provided in horizontal (H) and longitudinal (L) structural forms.
# Core Advantages Over Similar Welding Machines
1. The embedded silver bushing structure for conductive rotating parts, together with sealed oil lubrication and water cooling, ensures steady rotation and eliminates the risk of locking.
2. The rotating shaft inside the conductive base is coated with nanometer ceramic spraying, which provides far better wear resistance than common nylon materials and effectively extends service life.
3. Square cylinder guide bars are used instead of conventional round ones, which effectively prevents welding wheel deflection and ensures more stable welding quality.
# Machine Structure
1. Machine body: Built with vertical reinforced design, welded using 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, featuring low impedance, high power efficiency, 50% duty cycle for continuous welding, high output, long service life, low noise and compact structure.
3. Solenoid: Sourced from Taiwan, with high response speed and reliable performance.
4. Cylinder: Manufactured from high-precision anti-friction hard duralumin, rust-resistant, low friction, low noise and fast pressure application, thus reducing welding spatter.
5. Welding wheels: Made of CuCrZr alloy with excellent wear resistance, water-cooled for longer 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 fabrication, electrical appliances, fuel tanks, water tanks and other related industries. It is particularly suitable for seam welding of basins, barrels, tanks and other sealed thin-walled containers made of low-carbon steel or stainless steel. Model
Item Unit | 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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