Extruded Finned Tubes

Alumium extruded fin tubes is formed from a bi-metallic tube. Consisting of an aluminum outer core and an parent tube of almost any material. The fin is formed by rolling material from the outside of the exterior tube to give an integral fin .The extruded fin is manufactured by compressing an aluminum outer core tube onto the parent tube.   the outer core tube is exposed to extremely high pressures which essentially "grows" the fins into the final fin profile.

The process produces an extremely strong joint & the result is an integrally formed finned tube with 100% fin-to-tube bond providing exceptional efficiency and longevity. whether rough services, high temperatures or extremely corrosive environment extruded fin tubes are a great option for heat exchanger applications.

The advantages of bi-metal extruded fin tubes :-

•    Compact design
•    Optimum cost.
•    More heat transfer aria .
•    Excellent corrosion protection on the base tube.
•    Advance heat transfer element.
•    Long life

Maximum operating temperature for this fin type is 290°c. Base tube of extruded finned tubes can be  ss. cs, corrosion resistance steel, copper, copper alloys.

We provides more than 10 types of common sizes from 15  mm to 64 mm outer dia of bimetal extruded fin tubes with 5 to 9 FPI.
Many special sizes in single-metal & bimetal extruded fin tubes are also available. .

Helical tension wound fin tubes made from any type tube & consisting of CRCA, SS or aluminum strips. These types of fins are semi-crimped and wrapped under tension around the outside of the base tube. This type of fin tubes are process  under high mechanical tension bonding process. Finally,  fins are either tack welded or brazed to the base tube at each end of the tube.

The process create tension joint & the result is wound formed finned tube with 75% fin-to-tube bond providing better efficiency.
Maximum operating temperature for this fin type is 250°C.

Base tube of finned tubes can be SS. CS, corrosion resistance steel, copper, copper alloys.

We provide common sizes from 25 mm to 50 mm outer dia of fin tubes with 5 to 9 FPI.