Explore our diverse selection of high-performance finned tubes: choose from tension wound finned tubes, precision-engineered embedded finned tubes, and robust extruded finned tubes, each designed to deliver superior thermal efficiency.
Our tension wound finned tubes are expertly crafted by skilfully winding an aluminium or copper strip around the tube under precise tension, ensuring optimal performance and durability. Utilizing advanced strip winding technology, we offer a variety of fin types meticulously designed to meet diverse needs: L-Fin, LL-Fin, KL-Fin, each offering distinct advantages for your applications.
Embedded fins (G-Fins) Created with precision, embedded fins (G-Fins) involve the meticulous winding of an aluminium or copper strip into a helical groove artfully machined on the tube's outer surface, promising exceptional heat transfer efficiency.
Our tension wound, embedded, and extruded finned tubes are pivotal components in air coolers, offering broad application versatility across various domains such as:
Heat exchangers designed for power plants, whether electric, nuclear, thermal, or geothermal, ensuring reliable and efficient energy management.
Efficient steam condensate systems, engineered for optimal performance in demanding conditions.
Serving the chemical and petrochemical industries, our finned tubes are built for challenging environments, ensuring consistent performance and reliability.
Essential for food processing plants and cutting-edge refrigeration technology, our tubes ensure that heat management meets the highest industry standards.
Customized for industrial applications, including steel mills, incinerators, and gas compression facilities, our solutions are tailored to meet rigorous operational demands.

L-Foot Finned Tube
The L-Foot finned tubing, renowned for its efficiency and cost-effectiveness, maximizes heat transfer at lower temperatures, making it an ideal choice for various applications. Its distinctive L-shaped configuration ensures the fins remain rigid, adeptly withstanding heat cycling and high-velocity air vibration, thus enhancing performance.
We offer the L-Foot Finned Tube in several innovative fin variations, each designed for specific performance enhancements:
Knurled Fin - Featuring an interference fit, this fin employs mechanical knurling to ensure secure attachment to the tube wall surface, enhancing thermal contact.
LL Fin - The Double Overlap fin configuration (Double LL) provides enhanced coverage, offering double-strip thickness for comprehensive base tube protection.
Perforated L Fin - Engineered with 'tear drop' slits around the helix, this innovative design breaks up airflow, improving thermal performance.
L-Foot Fin / Wrap-On Fin
L-Foot Tension Wound Finned Tubes Also known as Wrap-On Finned Tubes, these are ideal for applications requiring low-temperature resilience, effectively shielding the tube wall from temperatures up to 300 degrees Fahrenheit. Crafted with precision, these tubes feature thin aluminium fin strips meticulously wound around the tube circumference for optimal thermal conduction. The design incorporates a 'foot' on one side of the fin strip, the distinctive hallmark of the L-Foot configuration. The fin strip is expertly wound around the tube, with the 'foot' ensuring secure contact with the tube's outer surface. The horizontal limb of each L is strategically positioned to cover the base-tube surface completely, maximizing heat transfer. Tension applied during wrapping ensures that the fin foot is seated firmly on the tube, maintaining a robust and stable configuration. L-footed finned tubing is engineered for exceptional heat transfer efficiency at lower temperatures. Its unique L-shaped design ensures that fins remain firmly in place, adeptly handling heat cycling and high-velocity air impacts. Providing a degree of atmospheric protection, this fin design guards against corrosion, extending the tube's lifespan. The extensive contact surface between the tube and the fin enhances thermal conduction, ensuring superior heat transfer. This design exemplifies efficiency and cost-effectiveness, making it a preferred choice for heat management solutions.
To prevent unravelling and ensure sustained contact, the fin ends are securely stapled, maintaining the vital connection between the fin foot and the tube. This contact is vital to the efficient functioning of the air cooler, as it enables the seamless transfer of heat from the tube wall, through the fin, to the ambient air surrounding it, ensuring optimal cooling performance.
Advantages:
Exceptionally suitable for low-temperature applications, ensuring versatility and efficiency in cooler environments.
Among various methods, this finning type stands out as the most cost-effective solution, offering excellent value without compromising on quality.
During production, failed fins can be effortlessly removed, allowing the bare tube to be reused for finning, enhancing sustainability and reducing waste.
There is no requirement to create a helical groove on the core tube, simplifying the manufacturing process.
Fins can be placed on an exceedingly thin-walled tube, which is especially desirable when utilizing expensive alloys as the core tube, maximizing material efficiency.
The tube is capable of withstanding temperatures up to 130°C, safeguarding it against atmospheric corrosion and thermal stress, ensuring longevity and reliability.
Application:
Ideal for use in oil and gas refineries, offering superior performance and robustness.
Widely used in the petroleum, chemical, and petrochemical industries, supporting critical processes with reliability.
Essential in natural gas treatment, enhancing operational efficiency and effectiveness.
Indispensable in the steel-making industry, providing exceptional durability and performance.
An asset in power plants, boosting energy efficiency and operational excellence.
Perfect for air conditioning systems, facilitating superior cooling and air quality.
Integral to compressor coolers, ensuring optimal cooling performance and reliability.
KL Footed Fin / Knurled L Footed Fin
The KL fin is also recognized as the knurled L fin. This finned tube closely resembles the Wrap-On fin and is crafted using a fusion of Wrap-On and Embedded techniques, ensuring superior performance. The fins are crafted from strips prepared into an L shape, akin to the L type, then rolled into a taper for a natural curl. It is meticulously helically wound onto the tube in a continuous loop under tension, ensuring a secure and tight fit. The fin embraces the tube, ensuring a snug fit that enhances efficiency. A spinning tool skillfully knurls the base tube, and the fin's foot is intricately knurled into the base tube, resulting in a robust bond and heightened thermal performance.
The foot of one fin seamlessly aligns with the next if the correct fin strip is used, eliminating gaps between fins for consistent performance. This design effectively protects the tube from corrosion, extending its lifespan and ensuring reliability. Similar to L fins, the fins are securely attached at each end to prevent unwinding, maintaining structural integrity. In metal-related applications, KL Foot tension wound finned tubes are typically employed, delivering exceptional performance. Capable of withstanding up to 320°C (608°F) maximum operating temperature, ensuring reliability under extreme conditions.
Advantages:
Corrosion-resistant tubes, crafted to endure harsh environments and maintain performance.
Designed with vibration resistance, ensuring stability and longevity in dynamic settings.
Able to endure temperatures soaring up to 320°C (608°F), providing reliability in high-temperature applications.
Combining high thermal performance and stress resistance with protection against air corrosion results in a unique, unparalleled solution.
KL fins can replace any form of finned tube, offering a versatile and adaptable solution.
LL-Foot Fin / Overlapped L
Fins are crafted from strips in a manner similar to the L type, but the foot is carefully fashioned into a precisely controlled stepped double L shape, rolled into a taper for natural curling. The LL-Foot Fin - Overlapped L is then expertly helically coiled onto a tube under tension for a secure fit. The fin clings tightly to the tube, with one fin elegantly overhanging the next, ensuring the base tube is fully covered. This innovative design offers outstanding protection from corrosion, safeguarding the tube's integrity and longevity. In challenging corrosive environments, this remarkable form of tube emerges as a preferred cost-effective alternative to the pricier extruded fin type. Its resilience and efficiency make it a popular choice.
Ingeniously designed, the fins are secured with precision at each end, mirroring the reliable method used in L fins. This ensures enhanced durability and performance. The robust LL-type fin tube stands out with its capacity to withstand temperatures soaring up to 350 degrees Fahrenheit (177C degree), making it ideal for high-temperature 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
This versatile technology finds its application across a myriad of industries, including aftercoolers, air coolers, air heaters, and charge air chillers. It is also integral in the functioning of condensers, convection heaters, and electric heaters. Further applications extend to evaporators, fluid coolers, gas coolers, and heat pipes. Notably, it plays a crucial role in hydrogen coolers, industrial tumble dryers, and intercoolers. Additional uses encompass immersion heaters, oil coolers, radiators, refrigeration systems, solvent recovery units, and steam to air heat exchangers, underscoring its multifaceted utility..







With a proud heritage spanning 17 glorious years, DATANG STEEL PIPE Co., Ltd stands as a distinguished processor and wholesaler, exporting an impressive array of steel solutions to global markets.
Explore our extensive catalog, featuring a wide array of Finned Tubes, Fin Tube Heat Exchangers, Air Coolers, Radiators, Economizers, and Condensers,as well as state-of-the-art Vaporizers/Evaporators, all meticulously crafted at Datang.
Our substantial spot inventory boasts premium quality carbon steel seamless pipes,alongside ERW pipes, SSAW pipes, and alloy steel pipes, with a comprehensive selection of pipe fittings and flanges readily available.
We warmly invite you to visit our factory, and we eagerly anticipate the opportunity to collaborate with you.

For 17 illustrious years, DATANG STEEL PIPE Co., Ltd has been renowned as both a manufacturer and wholesaler, skillfully exporting to international domains.
Our expert sales and technical teams are at your service, crafting tailor-made solutions and offering bespoke product customizations to meet your unique needs.
Discover our expansive selection of Finned Tubes right here at Datang.
Our cutting-edge production facilities include the following state-of-the-art equipment:
'G' Type Fin Tubes (Embedded Finned Tubes), 'L', 'LL', 'KL' Type Fin Tubes (Wrap Around Finned Tubes) (6 lines)
High Frequency Welded Fin Tubes (Including Serrated Finned Tubes) (8 lines)
Laser Welding Finned Tubes (1 line)
Extruded Finned Tubes (Bimetallic Fin Tubes & Integral Monometallic Low Fin Tubes) (6 lines)
We also specialize in customizing Fin Tube Heat Exchangers, Air Coolers, Radiators, Economizers, Condensers, and Vaporizers/Evaporators, tailored to enhance your operations.
Our extensive spot inventory is rich with high-quality carbon steel seamless pipes, as well as ERW pipes, SSAW pipes, and alloy steel pipes, all ideal for the manufacture of fin tubes.
We also provide a full range of pipe fittings and flanges, ensuring comprehensive solutions.
We extend a warm welcome for you to visit our factory, looking forward to a fruitful partnership with you.
Customer Tour&Cooperation




FAQ
Q1: Are you a factory or a trade company?
A1: We are a factory that also operates a subsidiary dedicated to international trade and exports.
Q2: What can you provide?
A2: As a professional manufacturer, we specialize in designing and producing Radiators, Heat Exchanger Equipment, and a variety of Fin Tubes.
Q3: Where is your factory located?
A3: Our state-of-the-art facility is nestled in Cangzhou City, Hebei Province, China, equipped with a wide array of advanced machinery.
Q4: How do you ensure quality control?
A4: We provide an Inspection & Guarantee Certificate with every shipment, and Third Party Inspection services are also available to ensure quality.
Q5: What are the advantages of your company?
A5: We pride ourselves on having a team of highly skilled technical experts, offering competitive prices, and delivering unparalleled after-sales service compared to others.
Q6: Can you arrange shipment for orders?
A6: Absolutely, we can arrange shipment. We have long-standing partnerships with trusted forwarders to ensure seamless logistics.
Q7: What is the estimated delivery time?
A7: Delivery times depend on the order specifics, but typically, we deliver within 30 days after receiving advance payment.
Q8: Can you provide a sample?
A8: Yes, we can provide small samples from our inventory free of charge.
Don't hesitate to contact me today for more information! Reach out now!