Serrated Extruded Finned Tube
The serrated extruded finned tube, through its integrated molding process and serrated fin design, improves heat exchange efficiency by 25%-40% and has a lifespan of 8-12 years. It is widely used in air conditioning, industrial equipment, and other fields, achieving high efficiency and energy saving.
- Tube Material:Carbon steel,Stainless steel,Tube Diameter:15.88-50.80 mm,Wall Thickness:1.0-3.0 mm
- Fin Material:Aluminum,Cooper,Fin Thickness:0.4-0.5 mm,Fin Pitch:2.1-6.0 mm,Fin Height:6.35-25.4 mm
As a high-efficiency heat transfer element, the Serrated Extruded Finned Tube, with its integrated extrusion molding process and serrated fin design, is widely used in HVAC systems, industrial heat exchange equipment, and refrigeration units, significantly improving heat exchange efficiency and equipment operational stability.
The core competitiveness of the Serrated Extruded Finned Tube stems from its unique manufacturing process and structure: using aluminum or aluminum alloy, the fins and base tube are processed into a single unit through extrusion molding technology, eliminating weld seams. This not only avoids the weld corrosion and excessive thermal resistance problems common in traditional welded finned tubes but also ensures a tight bond between the fins and base tube, reducing heat transfer loss by more than 30%.
The serrated fins, compared to straight fins, increase airflow turbulence, breaking the laminar boundary layer on the fin surface and allowing for more efficient heat exchange between the air and the fins. The heat transfer coefficient is 25%-40% higher than that of ordinary straight finned tubes, making it particularly suitable for heat exchange scenarios with low airflow velocities.
The Serrated Extruded Finned Tube combines lightweight design with high strength: The aluminum material weighs only 1/3 of a steel finned tube of the same specifications, facilitating lightweight equipment design; the integrated structure makes the fins more shock-resistant, less prone to detachment or deformation in vibrating environments such as fans and pumps, and has a service life of 8-12 years.
The serrated fin spacing is rationally designed, preventing dust accumulation. Routine maintenance only requires low-pressure airflow purging, reducing operating costs.
In terms of applicable scenarios, the Serrated Extruded Finned Tube has a wide range of adaptability:
It can be used in residential air conditioner outdoor units, industrial cooling towers, automotive radiators, cold storage condensing units, etc., and performs particularly well in scenarios requiring efficient air-fluid heat exchange. It can effectively reduce equipment size and energy consumption, providing core support for the efficient and energy-saving operation of heat exchange systems.
If you require a specific model, we recommend providing your specific operating conditions (such as operating temperature, pressure, and medium) directly to the supplier and contacting us to obtain the most suitable customized product solution.
- Datasheet
- Drawing
- Certificates
| Serrated extruded finned tube size and material | ||
| Tube OD | 10~51 (mm) | 0.4”~2” |
| Tube Wall Thk | 1.65~3.0 (mm) | 0.065”~0.118” |
| Tube Length | ≤18,500 (mm) | ≤60.7 ft |
| Fin Thk | 0.3~1.2 (mm) | 0.012”~0.047” |
| Fin Height | 5~16 (mm) | 0.2”~0.63” |
| Fin Pitch | 100~555 (mm) | 3~14 FPI |
| Fin Type | Extruded | |
| Material Combinations | ||
| Fin Material | Aluminum (most common grade:Alu.1100, Alu.1060, Alu. 6063) | |
| Copper | ||
| Tube Material | C.S. (most common grade: A179, A192,SA210 GrA1/C,A106 Gr B ) | |
| S.S. (most common grade: TP304, 316, 321, 347,A789) | ||
| Copper (most common grade:UNS12200,14200, 70600, CuNi70/30, CuNi 90/10) | ||
| Titanium (most common grade: B338Gr2) | ||
| Applied Temperature | 300°C | |
| Type of Service | Medium temperature, severe atmospheric corrosive environment. | |
Serrated Extruded Finned Tube Manufacture
Serrated extruded finned tubes are high-efficiency heat exchange elements that form serrated fins on the surface of a base tube through an extrusion process. Their production process mainly includes key steps such as material preparation, extrusion molding, and post-processing.
Serrated Extruded Finned Tube Appearance Dimension Inspection
Serrated extruded finned tube appearance dimension inspection is one of the important links to ensure the quality and performance of fin tubes.
The inspection items mainly include fin height, fin spacing, fin thickness, base tube wall thickness and outer diameter, etc.
Datang Serrated Extruded Finned Tube Bending Processing
Bending of fin tubes is an important step in the production process of serrated extruded finned tube. Bending is to bend the extruded finned metallic tubes material through specific mechanical equipment to form a suitable curvature to meet different usage requirements.
This step requires strict control of the bending angle and curvature to ensure the fit between the fin and the base tube and the heat dissipation effect.
Serrated Extruded Finned Tube Pull Off Test
Serrated extruded finned tube pull-off test is a test used to detect whether the fin tube will fall off when subjected to tension, mainly used to ensure the quality and reliability of the fin tube.
Datang’s this test is very important in the production process because the serrated extruded finned tubes will be subjected to various stresses during operation, such as temperature changes and pipe expansion, which may cause the fin to fall off, thereby affecting the performance and safety of the heat exchanger .
