Fin material: Aluminium 1060,1050,6063,3003; Copper 1100, 1200,

fin type: extruded, Size: OD25mm~OD85mm,

fin thickness:0.25mm~0.8mm,

fin per inch: 5~12;
Base tube material: SA179, SA106B, ST37.5,SA789 S31803, SS304,SS316L, SA334, SA249, C44300, C68700, C71500, C70600, C12200, UNS8800,UNS4400, IN825,Titalium etc. 

Manufacture: 
A core tube is fitted into an aluminium primary tube. This assembly is then fed into the triple-spindle finning machine. Three special multi-disc packs extrude the aluminium tube into helical high fins while reducing the inner diameter to give firm pressure contact with the core tube. 

Application: 
*Air water cooler unit 
*Product coolers - gas, chemicals, petrochemicals, oil etc. 
*Heat exchangers 
*..... 

High-efficiency fins for higher temperature applications giving complete and permanent atmospheric corrosion protection of the base tube.