We proudly offer a diverse range of finned tubes, meticulously crafted to meet various needs: tension wound finned tubes, embedded finned tubes, and extruded finned tubes. Each type is engineered for precision and performance.
Tension wound finned tubes are expertly formed by skillfully winding a strip, made from premium aluminium or copper, around the tube. This process, done under tension, ensures maximum efficiency and durability. Our cutting-edge strip winding technology provides a variety of fin types: L-Fin, LL-Fin, and KL-Fin, each offering unique benefits and tailored for specific applications.
Embedded fins (G-Fins) are ingeniously crafted by winding an aluminium or copper strip into a precisely machined helical groove on the tube's outer surface, ensuring optimal performance and longevity.
Tension wound finned tubes, embedded finned tubes, and extruded finned tubes form the backbone of air coolers, serving key industries with excellence. These are commonly applied in the following fields:
Heat exchangers for power plants, including electric, nuclear, thermal, and geothermal facilities, ensuring efficient energy exchange and reliability.
Steam condensate systems, expertly managing steam flow and condensation for optimal system performance.
Chemical and petrochemical industry, providing robust solutions tailored to withstand harsh environments and demanding conditions.
Food processing plants and refrigeration technology, ensuring superior temperature control and energy efficiency in all processes.
Industrial applications, including steel mills, incinerators, and gas compression facilities, where durability and reliability are paramount.

L-Foot Finned Tube
Highly efficient and cost-effective, L-footed finned tubing provides unparalleled heat transfer at lower temperatures, a hallmark of innovation and value. The distinctive L-shaped design ensures fins remain rigid, expertly engineered to resist heat cycling and high-velocity air vibration.
The L-Foot Finned Tube is available in the following innovative variations, each designed for specific demands:
Knurled Fin - This fin type features a unique interference fit, with mechanical knurling of the fin material to the tube wall surface for enhanced stability.
LL Fin - Featuring double overlap fin coverage, the double LL design ensures a double strip thickness coverage for comprehensive protection of the entire base tube.
Perforated L Fin - Enhanced with 'tear drop' slits around the helix, this innovation effectively disrupts airflow for improved performance.
L-Foot Fin / Wrap-On Fin
L-Foot Tension Wound Finned Tubes also known as Wrap-On Finned Tubes, are ideal for applications where temperatures do not exceed 300 degrees Fahrenheit, providing necessary protection for low-temperature scenarios. L-Foot tension wound finned tubes are crafted with a thin aluminium fin strip, meticulously wound helically around the tube for seamless efficiency. An L-Foot is first formed on one side of the fin strip, offering a unique advantage in design and functionality. The strip is then carefully wound around the tube, ensuring the foot makes firm contact with the outer surface for optimal heat transfer. Each L's short horizontal limb fully contacts the base-tube surface, ensuring comprehensive coverage and enhanced protection. The tension in the fin strip, as it wraps around the tube, firmly seats the fin foot, securing it in place and ensuring consistent performance. L-footed finned tubing is a hallmark of high-performance design, delivering maximum heat transfer efficiency at lower temperatures. Its unique L-shaped design holds fins rigidly, expertly engineered to withstand the challenges of heat cycling and high-velocity air vibration. This fin design offers excellent atmospheric protection for the tube wall, guarding against corrosion and enhancing longevity. The extensive contact surface between the tube and finning maximizes heat transfer for superior performance. This innovative fin design is not only highly efficient but also remarkably cost-effective, offering exceptional value.
To ensure durability, the fin ends are securely stapled, preventing the aluminium fin from unravelling and maintaining firm contact between the fin foot and the tube. This indispensable component is the heartbeat of your air cooler's operation, ensuring efficient heat transfer from the robust tube wall, radiating through the expertly designed fin, and dissipating into the ambient air, maintaining optimal temperature control.
Advantages:
Perfectly tailored for low-temperature applications, showcasing exceptional adaptability and performance.
The finning type represents the pinnacle of cost-efficiency in comparison to other methods, offering unparalleled value.
Should any fins fail, they can be effortlessly removed during production, allowing the bare tube to be reused for subsequent finning, ensuring sustainable and economical solutions.
There's no necessity to create a helical groove over the core tube, streamlining the production process.
Fins can be seamlessly placed on an ultra-thin-walled tube, an especially attractive feature when employing costly alloy core tubes for enhanced thermal efficiency.
Capable of enduring temperatures soaring up to 130°C, this tube offers uncompromising resistance against atmospheric corrosion and thermal stress, ensuring long-lasting reliability.
Application:
Oil and gas refineries
Petroleum, chemical, and petrochemical industries
Natural gas treatment facilities
Steel manufacturing industry
Power generation plants
Air conditioning systems
Compressor cooler units
KL Footed Fin / Knurled L Footed Fin
The KL fin is often referred to as the knurled L fin, known for its innovative design. This finned tube closely resembles the Wrap-On fin, crafted using both Wrap-On and Embedded techniques for maximum efficiency. The fins originate from meticulously prepared strips shaped into an L form, akin to the L type, then expertly rolled to form a taper inducing a curl. Subsequently, the fin is helically wound around the tube in a continuous, tensioned loop, ensuring a secure fit. The fin embraces the tube, creating a seamless bond. A spinning tool precisely knurls the base tube, and the fin's foot is intricately knurled into this base, resulting in a tight, robust bond and enhanced thermal performance.
Utilizing the correct fin strip ensures each fin's foot aligns with the next, leaving no gaps and ensuring protection. This design fortifies the tube against corrosive elements. Similar to L fins, each end of the fin is securely attached, preventing unwinding and ensuring lasting durability. In metal-related applications, KL -Foot tension wound finned tubes are predominantly utilized for their superior performance. Capable of withstanding up to 320°C (608°F) as a maximum operating temperature, showcasing exceptional thermal endurance.
Advantages:
Corrosion-resistant Tubes offering unmatched durability.
Designed with vibration resistance for optimal stability.
Engineered to endure temperatures as extreme as 320°C (608°F), ensuring robust performance.
An extraordinary combination of high thermal performance, stress resistance, and protection from air corrosion, unparalleled in the industry.
Versatile KL finned tubes can replace any finned tube type, providing flexible solutions.
LL-Foot Fin / Overlapped L
These fins are crafted from strips, much like the L type, but with a meticulously controlled stepped double L shape, rolled to curl seamlessly. The LL-Foot Fin - Overlapped L is then helically coiled onto a tube under tension, ensuring a snug fit. The fin tightly grips the tube, with one fin overhanging the foot of the subsequent fin, completely enveloping the base tube. As a result, the tube is exceptionally shielded from corrosion, enhancing longevity. In environments prone to corrosion, this tube variant often serves as a cost-effective alternative to pricier extruded fin types.
Our G Type Fin Tube Embedded Finned Tube presents a sophisticated design where fins are meticulously secured at each end, echoing the precision and reliability found in traditional L fins. This ensures a robust performance even under demanding conditions. The LL-type fin tube, a marvel of engineering, is adeptly designed for optimal performance at temperatures soaring up to 350 degrees Fahrenheit (177 degrees Celsius). This makes it an ideal solution for applications demanding high-temperature resilience.
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 versatile G Type Fin Tube Embedded Finned Tube is engineered to excel in a vast array of applications, including aftercoolers, air coolers, and air heaters. It adeptly serves in charge air chillers, condensers, and convection heaters, as well as electric heaters and evaporators. Whether it's fluid coolers, gas coolers, or heat pipes, our product stands out. It's indispensable for hydrogen coolers, industrial tumble dryers, and intercoolers. Whether in the realm of immersion heaters, oil coolers, or radiators, or in refrigeration, solvent recovery, and steam to air heat exchangers, our fin tube showcases unmatched versatility and efficiency..







With a trusted legacy spanning 17 years, DATANG STEEL PIPE Co., Ltd stands as a distinguished processor and wholesaler, delivering excellence to global markets.
Explore our extensive collection, including Finned tubes, Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers,as well as premium Vaporizers and evaporators at Datang.
Possessing a robust spot inventory, we offer top-tier high-quality carbon steel seamless pipes,alongside ERW, SSAW, and alloy steel pipes. Complementing our range are pipe fittings and flanges, readily available.
We warmly welcome you to visit our state-of-the-art factory and eagerly anticipate a fruitful partnership with you.

For 17 years, DATANG STEEL PIPE Co., Ltd has been a respected manufacturer and wholesaler, serving global markets with dedication.
Our expert sales and technical teams are at your service, offering bespoke solutions and product customization tailored to your needs.
Discover a comprehensive variety of Finned tubes within the Datang range.
Our cutting-edge production facilities include:
The 'G' Type Fin Tube (Embedded Finned Tube), and 'L', 'LL', 'KL' Type Fin Tube (Wrap Around Finned Tube) spanning 6 production lines,
High Frequency Welded Fin Tube (including Serrated Finned Tube) with 8 production lines,
and 1 dedicated line for Laser Welding Finned Tube.
We also feature Extruded Finned Tubes (both Bimetallic Fin Tube & Integral Monometallic Low Fin Tube) across 6 lines.
Additionally, our prowess in customization extends to Fin tube heat exchangers, Air coolers, Radiators, Economizers, Condensers, and Vaporizers/evaporators.
Our substantial inventory includes premium high-quality carbon steel seamless pipes, as well as ERW, SSAW, and alloy steel pipes, essential for manufacturing fin tubes.
Comprehensive pipe fittings and flanges are also at your disposal.
We cordially invite you to tour our factory and are enthusiastic about the opportunity to collaborate with you.
Customer Tour&Cooperation




Frequently Asked Questions (FAQ)
Q1: Are you a factory or trade company?
A1: We are proudly a factory, complemented by a subsidiary international trade company dedicated to exports.
Q2: What can you provide?
A2: As a leading expert in the industry, our company specializes in the manufacturing of Radiator and Heat Exchanger Equipment along with a diverse range of Fin Tubes.
Q3: Where is your factory located?
A3: Our strategically positioned company is nestled in Cangzhou city, Hebei province, China, and is outfitted with a wide array of state-of-the-art machinery.
Q4: How do you ensure quality control?
A4: We uphold rigorous quality standards, offering Inspection & Guarantee Certificates with each shipment. Additionally, Third Party Inspection is available to assure absolute quality.
Q5: What are your company's advantages?
A5: Our company boasts a team of dedicated professional and technical personnel, more competitive pricing, and superior after-sales service compared to other companies.
Q6: Can you arrange the shipment?
A6: Absolutely! We are equipped to assist with shipment arrangements, leveraging our long-standing partnerships with reliable forwarders.
Q7: What is the expected delivery time?
A7: Delivery timelines are contingent on the order specifics, typically finalized within 30 days following receipt of your advance payment.
Q8: Can you provide samples?
A8: Yes, indeed! We offer complimentary small samples from our inventory.
Please reach out to me for further details today!