According to the manufacturing, finned tubes can be classified into integral, welded, and mechanically connected ones.

1. There are three types of mechanically connected finned tubes: winding, inlaid, sleeve or string. The winding finned tube is simple to manufacture. The metal band is fixed on one end of the tube by mechanical or welding, and the metal belt is tightly wound on the outer wall of the tube by means of tube rotation torque, and the other end is fixed to form a wound fin tube. The material of the winding sheet can be copper, steel or aluminum.

2. Welding finned tubes, using brazing or inert gas shielded welding and to manufacture. The newest welding technology can connect fins of different materials together, simple and economical, with good heat transfer and mechanical properties, which has been widely used. Since the residue in the welding seam is not conducive to heat transfer and may even cause fracture, the quality of the welding process must be ensured when producing this type of finned tube.

3. Integral fin tube, formed by casting, machining or rolling, the fin and the tube are a whole.‍‍‍‍‍‍