| Sr. | Particulars | Range |
|---|---|---|
| 1 | Base Tube Material | Stainless Steel, Carbon Steel, Alloy Steel, Titanium, Copper, Duplex Stainless Steel, Inconel, etc. (all materials in theoretical limit) |
| 2 | Base Tube Outside Diameter | 12.70mm to 50.80mm |
| 3 | Base Tube Thickness | 1.50mm and above |
| 4 | Base Tube Length | 500mm Min to 15000mm |
| 5 | Fin Material | Aluminum, Copper |
| 6 | Fin Thickness | 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.55mm, 0.60mm, 0.65mm |
| 7 | Fin Density | 197 FPM (5 FPI) to 433 FPM (11 FPI) |
| 8 | Fin Height | 9.8mm to 16.00mm |
| 9 | Bare Ends | As per Clients Requirements |
| 10 | Manufacturing Capacity | 4,80,000 meters per Annum |
The extruded fin tube also known as bimetallic fin tube is one of the most preferred finning process for various applications.
The fins are manufactured by extruding the fins on the aluminum muff tube which is made to fit with close tolerance over the base tube.
The extrusion takes place on a continues fin extruder with three tooling rolls and extrusion takes place at high pressure. Because of the cold working process the bond between the tube and fin is flawless and hence gives excellent heat transfer efficiency. At the same time the mechanical strength of the fins is also enhanced drastically, and has a longer life.
This fin tubes find application in AIR-FIN COOLERS, DRIERS, RADIATORS etc. and are used in industries like power plants, Gas plants, chemical industries, steel plants, chiller plants, petroleum refiners, food & Agriculture equiptments.
Properties of EXTRUDED FIN TUBE / BIMETALLIC FIN TUBE
| Property | Description |
|---|---|
| Manufacturing Process | Cold extrusion - solid or serrated. |
| Fin to Tube Bond | Excellent |
| Heat Transfer Efficiency | Excellent |
| Mechanical Resistance | Excellent (Hence can be frequently cleaned with high pressure jets unlike other fin tubes, thereby reducing downtime and increasing overall life.) |
| Corrosion Protection | Gives excellent corrosion protection to the base tube since it entirely covers the base tube (except bare ends). |
| Temperature Range | Up to a maximum of 300°C. |