The fin strip is tension wound onto the base tube. Typical fin materials: carbon steel, stainless steel, copper, brass and copper-nickel.

Size Range:

Base tube size: 6-219.1 (other sizes upon request)

Fins: 50-500 fins/meter

Fin thickness: 0.2-1.5 mm

Fin quantity and size depend on diameter of base tube. In case of deviation against the sizes of the opposite page, please ask us.

Tolerances: Fin height: +/- 1mm

Fins/meter: +/- 2%

Plain ends: +/- 5mm

Fields of Application:

Climatic Industry, Cooling, Heating, Drying

Manufacturing Process

Fins are spirally wound on a base tube, without welding, just fin spot welded. Non ferrous tubes and fins on either

root soldered or completely tinned

Execution: black, galvanized and for special applications

Stainless Steel, Copper, Brass, and/or Aluminium.

Ends can be bevelled, bended upon request.

In order to forward you a promt offer we would be pleased to receive you detailed enquiry containing:

• Base tube material and quantity

• Base tube size

• Fin material

• Fin type

• Fin diameter or height

• Fin thickness

• Fins per inch, meter or fin pitch

• Lenght of plain, unfinned ends (nessesary to roll or weld the tubes into tubeplate or assembly)