An extruded fin tube machine is also called a tube finning machine, extruded high fin tube machine and extruded low fin tube machine.
| Item | Specifications | ||
| GJ-66A | GJ-66B | GJ-66C | |
| Base tube material | Aluminum, carbon steel, copper | ||
| Base tube diameter range | Φ7~12mm | Φ12~32mm | Φ15~45mm |
| Fin material | Aluminum / copper | ||
| Fin thickness | 0.3~0.7mm | ||
| Fin height | 7mm | 16mm | 16mm |
| Finished finned tube outer diameter | Φ25mm | Φ64mm | Φ77mm |
| Spiral pitch | 1.8mm; 2.0mm; 2.1mm; 2.3mm; 2.5mm; 2.8mm; 3.0mm; 3.2mm~8.0mm** | ||
| Max. length of finished finned tube | 15m | ||
| Output spindle rotating speed | 80rpm, 100rpm, 120rpm | ||
| Fin rolling speed | 0.6m/min, 0.75m/min, 0.9m/min | ||
| Main drive motor power | 11kW | ||
| Machine weight | About 1920kg | ||
| Overall dimension | About 2050x760x1430mm | ||
Note:
*When base tube diameter is less than 22mm, recommend fin height shall be not higher than 12mm.
*When fin pitch is less than 2.3mm or more than 3.2mm, it’s better to provide more details of fin tubes for us to check.

This machine is special designed for processing L/ LL shape finned tubes in different diameters. It adopts numerical tension control to keep the binding force between tube and fin being in the best state!
This L fin tube making machine is specially designed for winding spiral fin to base tube to form L-shaped finned tubes in different diameters.