I Description: This machine is special designed for producing single-metal or double-metal fin tubes / finnned tubes in different diameter. By changing different rolling blades, different size fin tube can be produced. II Suitable finned tube size: 1) Outer diameter of fin: 25 66mm 2) Diameter of fin root: 15 30mm 3) Pitch of fins: 2.3mm, 2.5mm, 3.2mm 4) Thickness of fins: 0.3 0.4mm 5) Length of finned tube: 0 10000mm III Main technical data of the machine 1) Central line height of the main spindleto worktable: 345mm 2) Height of worktable: 718mm 3) Output axle rotating speed: 80rpm, 100rpm, 120rpm, adjustable 4) Fin rolling speed: 0.6m/min, 0.75m/min, 0.9m/min 5) Main motor power: 11kW 6) Coolant water pump motor power: 0.12kW 7) Weight: about 1920kg 8) Dimension: about 2050 x 760 x 1430mm