Extruded High Fin
This fin type is formed from a bi-metallic tube consisting of an aluminium outer tube and an inner tube of almost any material. The fin is formed by rolling material from the outside of the exterior tube to give an integral fin with excellent heat transfer properties and longevity. Extruded fin offers excellent corrosion protection of the base tube. Maximum operating temperature for this fin type is 280°C.
Fin material: Aluminium.
Tube materials: No theoretical limits.
Production Capability
Profins utilise 2 different types of finning equipment whose capabilities are as follows.
| McElroy finning equipment |
| Base tube O/D: | From 5/8" (15.88mm) to 2" (50.8mm) | | Fin height : | From 1/4" (6.35mm) to 1" (25.4mm) | | Fin pitch : | From 5 fins per inch to 12 fins per inch(196 fins/metre to 473 fins/metre) | | Fin Thickness: | From 0.012" (0.30mm) to 0.031"(0.76mm) | | Base tube material: | Dependent on fin type | | Fin material: | Aluminium or copper | | Fin types : | L, LL, KL, G |
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| Razmussen finning equipment |
| Base tube O/D: | From 5/8" (15.88mm) to 4" (101 .6mm) | | Fin height : | From 1/4" (6.35mm) to 1" (25.4mm) | | Fin pitch : | From 2 fins per inch to 9 fins per inch (78 fins/metre to 351 fins/metre) | | Fin Thickness: | From 0.012" (0.30mm) to 0.040" (1mm) | | Base tube material: | Carbon / stainless steel or copper and copper based alloys | | Fin material: | Carbon / stainless steel or copper based alloys | | Fin types : | Semi Crimped |
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