Explore our diverse range of finned tube options designed to meet your air cooling needs: tension wound finned tubes, embedded finned tubes, and extruded finned tubes.
Tension wound finned tubes are meticulously crafted by precisely winding an aluminium or copper strip around the tube under tension, ensuring optimal performance and durability. Our advanced strip winding technology offers a variety of fin types tailored to your needs: L-Fin, LL-Fin, and KL-Fin.
Embedded fins (G-Fins) are crafted by expertly winding an aluminium or copper strip into a helical groove precisely machined on the tube's outer surface for enhanced efficiency.
These finned tubes, including tension wound, embedded, and extruded options, serve as crucial components for air coolers across various applications:
Heat exchangers for power plants encompassing electric, nuclear, thermal, and geothermal sectors.
Steam condensate systems engineered for peak efficiency.
Chemical and petrochemical industry applications.
Food processing plants and cutting-edge refrigeration technology.
Industrial applications such as steel mills, incinerators, and gas compression facilities.
L-Foot Finned Tube
This highly efficient yet cost-effective L-footed finned tubing ensures maximum heat transfer even at lower temperatures, making it a smart choice for various applications. The distinctive L-shaped design firmly secures fins, allowing them to withstand both heat cycling and high-velocity air vibrations.
The L-Foot Finned Tube is available in various fin configurations:
Knurled Fin - Features an interference fit with mechanical knurling, ensuring a strong bond between the fin and the tube wall surface.
LL Fin - The Double Overlap fin, also known as the double LL, provides extensive double strip thickness coverage over the base tube.
Perforated L Fin - Enhances airflow dynamics by introducing 'tear drop' slits around the fin helix.
L-Foot Fin / Wrap-On Fin
L-Foot Tension Wound Finned Tubes also referred to as Wrap-On Finned Tubes, are ideal for applications with temperatures below 300 degrees Fahrenheit where tube wall protection is crucial. These tubes consist of a thin aluminium fin strip wound helically and tightly around the tube's circumference. Its 'foot' is initially formed on one side of the fin strip, giving rise to the name L-Foot. The strip is then wound tightly around the tube, with the foot ensuring maximum surface contact with the tube's outer surface. Each L's short horizontal limb maintains complete contact with the base-tube surface, ensuring full coverage. The tension in the fin strip during wrapping ensures the fin foot is firmly seated and held in place. Designed for superior heat transfer, the L-footed finned tubing excels at lower temperatures. Its innovative L-shaped design secures fins to endure heat cycling and high-velocity air vibrations. This fin formation provides atmospheric protection for the tube wall against potential corrosion. The broad contact area between tube and finning significantly enhances heat transfer. This fin configuration is both highly efficient and cost-effective.
Fin ends are stapled to ensure the aluminium fin remains intact and maintains strong contact with the tube. This component is essential to the air cooler's performance, facilitating efficient heat transfer from the tube wall, through the fin, and into the surrounding ambient air.
Advantages:
Optimal for low-temperature applications, ensuring performance and efficiency are maintained.
This finning type is the most economical and efficient among available options.
The design allows for easy removal of failed fins during production, enabling the reuse of the bare tube for finning again.
No requirement to create a helical groove over the core tube, simplifying the production process.
Fins can be placed on a very thin-walled tube, which is particularly advantageous when using costly alloys as the core tube.
The tube can endure temperatures up to 130°C without risk of atmospheric corrosion or thermal stress, ensuring durability and longevity.
Application:
Oil and gas refineries, ensuring operational efficiency and safety.
Petroleum, chemical, and petrochemical industries benefit from its robust and reliable performance.
Natural gas treatment applications, providing essential support and efficiency.
Steel making industry, aiding in high-temperature processes.
Power plants utilize its properties for effective cooling solutions.
Air conditioning systems benefit from its efficient heat transfer capabilities.
Compressor coolers, ensuring optimal performance and longevity.
KL Footed Fin / Knurled L Footed Fin
The KL fin is also referred to as the knurled L fin, recognized for its unique design. This finned tube is akin to the Wrap-On fin, crafted using both the Wrap-On and Embedded techniques for enhanced performance. Fins are manufactured from strips formed into an L shape akin to the L type, then rolled into a taper for optimal performance. The fins are helically wound onto the tube in a continuous loop under tension, ensuring a secure fit. The fin embraces the tube, providing a snug fit and enhancing heat transfer efficiency. A spinning tool knurls the base tube, allowing the foot of the fin to be securely knurled into the base tube's knurling for superior thermal performance.
Properly utilizing the correct fin strip ensures no gaps between fins, providing robust protection and performance. This design effectively shields the tube from potential corrosion. Similar to L fins, the ends are securely attached to prevent unwinding and ensure enduring performance. In metal-related applications, KL-Foot tension-wound finned tubes are prevalently used to great effect. Maximum operating temperature up to 320°C (608°F), ensuring versatile use in high-temperature environments.
Advantages:
Corrosion-resistant Tubes, ensuring longevity and durability in challenging environments.
Resistance to vibrations, providing stability and reliability.
Capable of withstanding temperatures up to 320°C (608°F), ideal for high-temperature applications.
A unique combination of high thermal performance, stress resistance, and protection from air corrosion.
KL fins can replace any type of existing finned tube, offering flexibility and improved performance.
LL-Foot Fin / Overlapped L
Fins are produced from strips similar to the L type, but the foot is formed into a controlled stepped double L shape. The LL-Foot Fin - Overlapped L is helically coiled onto the tube under tension, ensuring secure attachment and enhanced performance. The fin intimately clings to the tube, with one fin overlapping the foot of the next, ensuring complete coverage. This design offers robust corrosion protection for the tube, enhancing durability. In corrosive environments, this tube type is a cost-effective alternative to more expensive extruded fin types.
The G Type Fin Tube is a marvel of engineering, with fins expertly secured at each end, mirroring the precision and reliability found in the acclaimed L fins. This design ensures robust performance and longevity. Designed to withstand the challenges of high temperatures, the LL-type fin tube is your ideal choice for environments reaching up to 350 degrees Fahrenheit (177°C). Its durability and efficiency make it indispensable for demanding applications.
Parameters
| PRODUCT |
TYPE |
TUBE MATERIAL |
FIN MATERIAL |
TUBE SIZE |
FIN SIZE |
| Heat Exchanger Finned Tube |
Extruded Fin Tube |
All Kind of Material can be applied |
Aluminum A1100 |
15.88~50.8 |
7~11.5FPI |
| Fin Height Max 16mmH |
| L,LL,KL-Foot Fin Tube |
All Kind of Material can be applied |
Copper C1100, C1220... |
12.70~50.8 |
2.3~11.5FPI |
| Wrap Around Finned Tube |
Fin Height Max 16mmH |
| G-Fin Tube (Embedded Type) |
Aluminum A1100, A1050, A1060... |
|
| High Frequency Welded Fin Tube |
A179 Carbon Steel Tube |
Carbon Steel Tube |
12.70~160 |
1.5~7FPI |
| Stainless Steel Tube |
Stainless Steel Tube |
0.8~3.2mm. Thickness |
| Alloy Steel Material |
Alloy Steel Material |
|
| Integral Copper & Copper Alloy High Finned Tube |
C12200, C11000, C70600 |
C12200, C11000, C70600 |
15.88~22.23 |
5~9FPI |
| Max 12mm. H |
| Oval Finned Tube |
Carbon Steel Tube |
Carbon Steel Tube |
All Size Available |
5~15FPI |
| Stainless Steel Tube |
Stainless Steel Tube |
| Alloy Steel Material |
Alloy Steel Material |
| Copper & Copper Alloy Tube |
Copper & Copper Alloy Tube |
| Monometallic Fin Tube |
Low Fin Tube |
Carbon Steel, stainless steel, titanium, copper, brass, nickel alloy, etc. |
-- |
9.52~40 |
12, 16, 19 28 FPI, etc. |
| Turbo-C Tube |
| Turbo-E Tube |
| Corrugated Tube |
All Kind of Material |
-- |
6.35~40 |
2~9FPI |
Application
Our fin tubes are versatile and essential components in a myriad of applications, including: Aftercoolers, air coolers, air heaters, charge air chillers, condensers, convection heaters, electric heaters, evaporators, fluid coolers, gas coolers, heat pipes, hydrogen coolers, industrial tumble dryers, intercoolers, immersion heaters, oil coolers, radiators, refrigeration systems, solvent recovery processes, and steam to air heat exchangers. These applications highlight the product's adaptability and critical role across various industries..
DATANG STEEL PIPE Co., Ltd stands as a distinguished processor and wholesaler, proudly catering to international markets for an impressive 17-year legacy.
Explore a comprehensive selection of exquisite Finned Tubes, state-of-the-art Fin Tube Heat Exchangers, superior Air Coolers, advanced Radiators, efficient Economizers, and high-performance Condensers,as well as sophisticated Vaporizers/Evaporators, all available at Datang.
Our inventory boasts a vast collection of top-tier, high-quality carbon steel seamless pipes,including ERW pipes, SSAW pipes, and alloy steel pipes. We also offer a wide range of precision-engineered pipe fittings and durable flanges.
We warmly invite you to visit our factory and eagerly anticipate the opportunity to collaborate with you.
DATANG STEEL PIPE Co., Ltd is not only a reputed manufacturer but also a trusted wholesaler, serving global markets with distinction for 17 years.
Our professional sales and technical teams excel in designing tailored solutions and providing product customization to meet your specific needs.
Discover an extensive selection of premium Finned Tubes, masterfully crafted at Datang.
Our cutting-edge production facilities include the following highly specialized capabilities:
'G' Type Fin Tube (Embedded Finned Tube), along with 'L', 'LL', 'KL' Type Fin Tubes (Wrap Around Finned Tube) across six advanced production lines.
We also offer High Frequency Welded Fin Tubes (Including Serrated Finned Tubes) utilizing eight dedicated production lines.
Our Laser Welding Finned Tube production is efficiently managed on a single line.
The Extruded Finned Tubes, including both Bimetallic and Integral Monometallic Low Fin Tubes, are expertly produced across six lines.
Additionally, we customize high-performance Fin Tube Heat Exchangers, advanced Air Coolers, versatile Radiators, Economizers, efficient Condensers, and Vaporizer/Evaporators tailored to meet various industry demands.
Our extensive inventory includes a vast range of high-quality carbon steel seamless pipes, complemented by ERW pipes, SSAW pipes, and alloy steel pipes, all essential for crafting our exceptional fin tubes.
We also provide an array of precisely engineered pipe fittings and robust flanges.
We extend a warm welcome for you to visit our facility and look forward to the possibility of collaborating with you.
Customer Tour&Cooperation
FAQ
Q1: Are you a factory or a trade company?
A1: We are a factory with an international trade company subsidiary dedicated to exports.
Q2: What can you provide?
A2: Our company specializes in manufacturing Radiator and Heat Exchanger Equipment, alongside a wide range of Fin Tubes.
Q3: Where is your factory located?
A3: Nestled in Cangzhou city, Hebei province, China, our factory is equipped with a variety of state-of-the-art machines.
Q4: How do you ensure quality control?
A4: We provide an Inspection & Guarantee Certificate with every shipment, and Third Party Inspections are available to ensure quality.
Q5: What sets your company apart?
A5: Our competitive edge lies in a team of professional and technical experts, offering competitive pricing and exceptional after-sales service.
Q6: Can you manage the shipment process?
A6: Absolutely, we can handle the shipment. We collaborate with seasoned forwarders who have partnered with us for many years.
Q7: What is the typical delivery time?
A7: Delivery depends on the order specifics, typically occurring within 30 days following receipt of your advance payment.
Q8: Are samples available?
A8: Yes, we can provide small samples from our inventory at no charge.
Feel free to reach out for more information today!
Audited Supplier 
){kind=link}