H gilled boiler fin tube welding machine
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H gilled boiler fin tube welding machine
Our H-gilled boiler fin tube welding machine is developed for manufacturing fin tube composed of single or twin pipes. The fin tube is widely used on the boilers. This fin tube welder consists of push trolley, pneumatic system, welding unit, and support frame.
Controlled by PLC, the H-gilled boiler fin tube welding machine offers semi-automatic production. The production process includes manual steel pipe feeding, manual fin tube unloading, manual fin loading, and automatic fin delivering. The fin spacing and length can be set up on the PLC. Importantly, the fin spacing for one tube can be varied.
Capacity
- Suitable H gilled fin tube length1-15m
- Suitable H gilled fin thickness2-3mm
- Suitable base steel pipe diameter19-51mm
- Applicable material (Base tube)Carbon steel; Carbon steel; Stainless steel
- Applicable material (Fin)Carbon steel; Low-carbon steel alloy; Stainless steel
Technical Parameters
- Welding power sourceIntermediate frequency inverter, 160kVA×3
- Welding transformer cooling methodCompulsive water cooling
- Silicon controlled rectifying diodeABB from Swiss, 12 pieces
- Active welding electrodeBe-Co-Cu alloy
- Welding electrodes pressing force2500N
- Pneumatic cylinder for pressing & positioningAirtec from Taiwan
- Annealing unit for welding sectionAnnealing period is adjustable.
- Welding speed< 4s (for 38.1mm base tube & 3mm fin)
- Welding strength>50MPa or base tube torn
- Width of welding seamLarger than fin thickness
- Welded fin length tolerance (full length)±1mm
- Welded fin length tolerance(fractional)±0.5mm
- Fin pitch tolerance±0.1mm
- Pendicularity between fin and base tube±1°
- Height difference between fins±0.2mm
- Center distance between two tubes±0.2mm (for twin-tube)