H Fin Pipe Welding Machine
H-shaped fin tubes are commonly used in boilers and are available in both single-tube and double-tube configurations.
The welding line is specially designed for producing both types of H-shape fin tubes. It consists of a pushing trolley, a pneumatic system, a welding head, and supporting racks.
The line is PLC-controlled and operates in a semi-automatic mode. Operators manually load steel pipes and unload finished fin tubes. Fins are manually loaded into a fin hopper, which then automatically feeds them to the welding head.
The fin welding pitch and length can be preset in the PLC. Additionally, the welding pitch can be varied along the same fin tube, allowing for greater flexibility.
MAIN FEATURES
- Steel pipe feeding trolley, step motor driving, precision 0.01mm
- Fin hopper and auto feeding devices, two – 3 x 200kVA intermediate-frequency welding transformers & controller
- Diode rectifier cabinet, one
- PLC + HMI control system
- Fin tube run-out rack, 7m long
- Pneumatic system – Cool water system
SPECIFICATION
| No. | Item | Data |
| 1 | Fin section length error (in full length) | ±2mm |
| 2 | Sectional length error | ±0.5mm |
| 3 | Linear straightness of finished fin tube | Not more than 1.0mm per meter Not more than 3mm per 5 meters |
| 4 | Fin pitch error | ±0.3mm |
| 5 | Fin pitch deviation at any 10 fins | ≤0.5mm |
| 6 | Verticality between fin and tube | ±0.5º |
| 7 | Height difference between fins in
one pair |
±0.1mm |
| 8 | Parallelism between fins in one pair | ±0.2mm |
| 9 | Center distance between two tubes | ±0.2mm |
| 10 | Welding transformer | 3 x 200kVA, dry-type, isolation level F-grade; 60%
duty cycle; compulsive water cooling |
| 11 | Active electrodes (wearing part) | CuCoBe alloy, stroke 100mm, welding force 2500N |
| 12 | Machine overall dimension | About 16 x 3.5 x 1.7m (L x W x H) |
| 13 | Machine weight | About 14 tons |
| 14 | Main configurations | PLC, touch screen, inverter, phototubes, approaching switches,
reflectors are all Panasonic brand, original from Japan |
