FINNING

Starting from a coil with a certain thickness and width, the finning machine wraps strip around a tube or a tubular heating element forming a fin around it. The pitch of the fins and the rotational speed of the tube can be set on the machine through an operator panel.

The finning machine is made up of these components:

  • A support for heating elements before finning
  • A finning head
  • A horizontal dereeler
  • A crinkling device
  • A finning carriage
  • An unloading section

 

Alettatura

 

The machine is supplied complete to wind one diameter of element with one strip width. For different diameters and widths, additional tooling is available.

The latest release of the finning machine for tube and heating elements offers a solution to the demand for increased productivity and safe working conditions, thanks to the following characteristics:

  • High-speed CNC winding: increases the productivity compared to traditional winding systems
  • Tube deformation system (optional): the tube end is pressed in the loading area in order to allow the winding of the metal strip around the tube and the offloading of the element without the need to weld the strip to the tube. The welding operation can be done later by the operator out of the machine, while the next element is being finned, thus increasing the productivity
  • Single or multiple finning pitch: without the need for additional tooling, the pitch and the main parameters (such as rotating speed and fin position) can be programmed and recalled through the operator panel.
  • High level of protection and low noise level: the operator can run the machine safely thanks to its protections and to a noise level below 80 dB
  • Format change: position indicators are used to recall the head and roll positions of the new finning machine, thus making the set-up faster and easier
  • Automatic strip de-reeler (optional): to minimize production stoppages

 

Macchina alettatrice

 

Technical characteristics

Tube material Mild steel, stainless steel
Tube diameter 6 - 16 mm
Min. tube length 300 mm
Min. tube thickness for tube to be finned 1 mm
Min. tube thickness for heating element to be finned 0,40 mm
Strip material Mild steel, stainless steel, copper
Strip width 6 - 12 mm
Strip thickness (mild steel, stainless steel) 0,3 - 0,5 mm
Finning pitch (adjustable) 2 - 15 mm
Winding speed (adjustable) 0/1000 run/min.
Power supply To be defined (V/Hz)
Pneumatic supply 6 bar
Installed power 8 Kw
Dimensions 7000x1800x1600h mm

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