Extruded fin offers excellent corrosion protection of the base tube and is much stronger than the applied fin tubes due to the work hardening of the fin material during extrusion process. It provides great resistance (fin stiffness) as well as exceptional heat transfer characteristics (longevity, temperature, range, etc.). The mechanical bond joining liner tubes and aluminum wall offers superior durability and insures no corrosion occurs between the fins and the tubes. The "double-wall" construction makes them more durable and heat-efficient. You can also choose from among several types of tube materials, which allows our heat exchangers to be specifically adapted to a given application. In addition, it can also extend the lifetime of heat exchangers and improve their efficiency and reliability.
The advantages of extruded aluminum fin tubes are as follows:
(1) Easy to clean with a high-pressure water jet without deforming the fins
(2) The tube is not mechanically stretched to adhere to the fins
(3) Uniform and reliable heat transfer
(4) No galvanic corrosion between the tube and fins
(5) The fins are vibration resistant
(6) Perfectly suited to industrial applications
(7) Unequalled quality/price ratio for demanding applications
Aluminum 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. Maximum operating temperature for this fin type is 290°c.
Total eight(8) bi-metallic finning lines, monthly production capacity is 150,000 meters in total.
Dimension and Material
The following table shows Simcan’s manufacturing capabilities:
10 to 51 (mm)
0.4" to 2"
Tube Wall Thk.:
1.65 to 3.0 (mm)
0.065" to 0.118"
No practical limit
No practical limit
0.3 to 1.2 (mm)
0.012" to 0.047"
5 to 16 (mm)
0.2" to 0.63"
67 to 500 (mm)
1 to 12 FPI
* This table is used as a general guide to our capabilities, please call us for any other customized cases.
Codes and Standards
As per drawings and client’s Requirements
Surface Treatment and Protection
Each tube will be cleaned free of rust, grease, residues or any other contaminants before extruding.
Each package is designed and made according to seaworthy packing standard and clients’ handling and lifting capability.
Finned tubes will be packed into steel frameworks and wrapped with weather proof PE film and plywood board covering up. In addition, each row of finned tubes will be isolated from adjacent with EPE(Expandable Polyethylene) foam to prevent rigid impact during transportation. For all exporting packages, we only use plywood instead of wood for fumigation free purpose.
As a professional supplier, Simcan does not only manufactures products but also has full capability on preparing and submitting documents as listed below but not limited to:
Design and Fabrication Schedule
Drawings and data
Inspection and Test Plan (ITP)
Daily, weekly or monthly progress report
A complete set of final archive including
Raw Material Mill Certificates
Product Conformity Certificate
Inspection Reports including Material Receipt Inspection Report, Test Report etc.
Test report by world reputable third party such as TÜV, BV, SGS, Lloyd's, ABS, Intertek(Moody), Shanghai Jorson etc. if any
Packing List and Proforma Invoice
Certificate of Origin or any other documentation mandatory for clients’ customs clearance or tax preference