TRANFOVIA(NINGBO) EQUIPMENT TECHNOLOGY CO.,LTD
TRANFOVIA(NINGBO) EQUIPMENT TECHNOLOGY CO.,LTD
The Dual Seam Welding Machine for Radiator Panels is designed for continuous sealing of both long edges of transformer radiator panels after the multi-spot welding process.
Two seam welding units work simultaneously on both sides of the panel, creating continuous and oil-tight weld seams in one pass.
With dual servo-driven welding wheels, stable electrode pressure, and automatic wear compensation, the machine delivers consistent welding quality during continuous radiator production.
It helps transformer manufacturers achieve higher welding efficiency, reliable sealing performance, and consistent radiator panel quality.
| Rated capacity
2 × 250 KVA |
Welding speed
≥ 2.5 – 3 m/min |
| Welding wheel
Ø300 mm |
Wheel spacing
310 – 550 mm |
Two welding units operate simultaneously, allowing both long edges of the radiator panel to be welded in one pass.
Resistance seam welding creates a continuous and uniform weld seam, helping ensure reliable radiator oil sealing.
The upper and lower welding wheels use AC servo motor drives for stable speed and consistent welding performance.
The electrode system supports automatic wear compensation and on-machine wheel dressing, helping maintain stable seam quality.
The welding wheel spacing can be adjusted from 310–550 mm to suit different radiator panel specifications.
The Dual Seam Welding Machine for Radiator Panels is installed after multi-spot welding and before edge trimming and end welding.
Typical production process:
Steel Coil Feeding → Hydraulic Mandrel Decoiler → Radiator Panel Roll Forming → Panel Turnover & Joining → Multi-Spot Welding → Dual Seam Welding → Edge Trimming → End Welding → Leveling → Automatic Cutting & Unloading → Header Pipe Assembly
After the radiator panels are fixed by spot welding, this machine performs continuous welding along both long edges to form a sealed oil channel.
This step is critical for achieving stable sealing quality and reliable oil leakage prevention.
| Rated Capacity | 2 × 250 KVA |
| Welding Transformer | 160–350 KVA |
| Power Supply | 3 Phase 380 V, 50/60 Hz |
| Duty Cycle | 50% |
| Welding Speed | ≥2.5–3 m/min |
| Welding Wheel Diameter | Ø300 mm |
| Available Wheel Diameter | Ø230–300 mm |
| Optional Wheel Diameter | Ø200–260 mm |
| Wheel Spacing | 310–550 mm |
| Effective Welding Arm Reach | ≥400 mm |
| Main Drive | AC Servo Motor, Upper and Lower Dual Drive |
| Welding Controller | 2400 A Variable Frequency Resistance Welding Controller |
| Cooling Water Pressure | 0.3 MPa |
| Cooling Water Flow | ≥40 L/min |
| Air Pressure | 0.5–0.6 MPa |
It performs continuous edge sealing after spot welding, improving radiator panel strength and sealing reliability.
It is installed after multi-spot welding and before edge trimming and end welding.
Yes. The machine welds both long edges in one pass, improving welding efficiency and production consistency.
It uses resistance seam welding with rotating welding wheels for continuous edge sealing.
The welding wheel spacing is adjustable from 310–550 mm for different radiator panel specifications.
Yes. It can be integrated with forming, joining, spot welding, trimming, and other radiator manufacturing equipment.
