We proudly offer a variety of finned tubes tailored to meet diverse needs: tension wound finned tubes, embedded finned tubes, and extruded finned tubes.
Tension wound finned tubes are ingeniously crafted by expertly winding a strip, either of aluminum or copper, around the tube under precise tension. The advanced strip winding technology we use provides several types of fins: L-Fin, LL-Fin, KL-Fin, each designed for specific applications.
Embedded fins (G-Fins) are meticulously crafted by winding an aluminum or copper strip into a helical groove precisely machined on the tube's outer surface.
Our tension wound, embedded, and extruded finned tubes are key solutions for air coolers, serving in numerous critical application fields, such as:
Heat exchangers in power plants, including electric, nuclear, thermal, and geothermal facilities.
Steam condensate systems.
Chemical and petrochemical industries.
Food processing plants and the ever-evolving field of refrigeration technology.
Various industrial applications such as steel mills, incinerators, and gas compression facilities.
L-Foot Finned Tube
Highly efficient yet cost-effective, L-footed finned tubing delivers exceptional heat transfer at lower temperatures. Its distinct L-shaped design ensures fins are held firmly to withstand heat cycling and high-velocity air vibration.
The L-Foot Finned Tube is available in the following innovative fin variations:
Knurled Fin - Features an interference fit with mechanical knurling of the fin material to the tube wall surface, enhancing performance.
LL Fin - Double Overlap fin (the double LL) offers complete double-thickness coverage of the base tube.
Perforated L Fin - This innovative design enhances the fin face with "tear drop" slits around the helix, effectively disrupting airflow for improved efficiency.
L-Foot Fin / Wrap-On Fin
L-Foot Tension Wound Finned Tubes commonly known as Wrap-On Finned Tubes, are engineered for applications where temperatures remain below approximately 300 degrees Fahrenheit, providing low-temperature application solutions and some tube wall protection. L-Foot tension wound finned tubes are composed of a thin aluminum fin strip, meticulously wound helically around the tube's circumference with precision. A "foot" is expertly formed on one side of the fin strip, giving rise to the L-Foot name. The strip is then tightly wound around the tube, with the foot resting securely on the tube's outer surface. The short horizontal limb of each L maintains full contact with the base-tube surface, ensuring complete coverage. Tension in the fin strip, as it is tightly wrapped, ensures the fin foot is seated with strength on the tube and held firmly in place. L-footed finned tubing is designed to offer maximum heat transfer at reduced temperatures. The unique L-shaped configuration holds fins in place, resilient against heat cycling and high-velocity air movement. This fin not only optimizes heat transfer but also offers a degree of atmospheric protection against tube wall corrosion. The extensive contact surface between the tube and finning significantly enhances heat conductivity. This fin design is both highly efficient and cost-effective, a testament to superior engineering.
The ends of the fins are securely stapled to prevent the aluminum fin from unraveling, ensuring consistent contact between the fin foot and the tube. This pivotal component is key to the seamless operation of the air cooler. It masterfully facilitates heat transfer from the tube wall, through the fin, and into the surrounding ambient air, optimizing thermal efficiency.
Compelling Advantages:
Perfectly engineered for low-temperature applications, ensuring reliability and durability.
This finning technique is the most cost-effective solution, providing exceptional value compared to other methods.
Easily remove failed fins during production, allowing the reuse of the bare tube for finning, maximizing efficiency and reducing waste.
Eliminates the need for creating a helical groove on the core tube, simplifying the production process.
Enables placement of fins on a very thin-walled tube, which is especially desirable when expensive alloys are used as the core tube, offering both performance and economic benefits.
Engineered to withstand temperatures up to 130°C, these tubes resist atmospheric corrosion and thermal stress, ensuring long-lasting performance.
Diverse Applications:
Oil and gas refineries benefit from enhanced efficiency and reliability.
Ideal for the petroleum, chemical, and petrochemical industries, providing robust thermal solutions.
Essential in natural gas treatment processes, enhancing operational efficiency.
Invaluable in the steel making industry for optimized thermal management.
Power plants rely on this technology for effective heat exchange and energy efficiency.
Key component in air conditioning systems, ensuring optimal climate control.
Compressor coolers utilize these advanced fins for superior performance.
KL Footed Fin / Knurled L Footed Fin: Innovative Technology
The KL fin, also recognized as the knurled L fin, is a testament to cutting-edge engineering. This finned tube closely mimics the Wrap-On fin, crafted using both Wrap-On and Embedded techniques for superior performance. Crafted from strips shaped into an L form comparable to the conventional L type, the fins are then rolled into a taper that encourages curling. The fin is helically wound onto the tube in a continuous loop under tension, ensuring a firm and secure fit. The fin embraces the tube, providing excellent thermal conduction. Utilizing a spinning tool, the base tube is knurled, and the fin's foot is seamlessly integrated with the knurling, creating a tight bond for improved thermal performance.
When the correct fin strip is used, each fin abuts the next, eliminating any gaps and enhancing protection. This design effectively shields the tube from corrosion, prolonging its lifespan. Similar to L fins, these fins are secured at each end to prevent unwinding, ensuring reliability. In metal-involved applications, KL-Foot tension wound finned tubes offer unmatched performance. Capable of withstanding a maximum operating temperature of up to 320°C (608°F), making them highly durable.
Distinct Advantages:
Corrosion-resistant tubes ensure prolonged service life and reliability.
Designed with vibration resistance for stable and dependable operation.
Capable of enduring temperatures up to 320°C (608°F), providing exceptional thermal stability.
A unique combination of high thermal performance, stress resistance, and protection from air corrosion.
KL fins can seamlessly replace any type of finned tube, offering versatile adaptability.
LL-Foot Fin / Overlapped L: A Distinctive Design
Similar to the L type, these fins are made from strips with a uniquely controlled stepped double L shape, rolled into a taper that promotes curling. The LL-Foot Fin, or Overlapped L, is meticulously helically coiled onto a tube under tension for an optimal fit. The fin clings to the tube, with each fin overlapping the foot of the next, ensuring complete coverage and protection. This comprehensive coverage effectively shields the tube from corrosion, enhancing durability. In corrosive environments, this tube form serves as a cost-effective alternative to more expensive extruded fin types.
The fins are meticulously secured at each end, employing the same reliable method as used for L fins, ensuring robustness and enhanced performance. The LL-type fin tube is expertly engineered to withstand temperatures soaring up to 350 degrees Fahrenheit (177°C), offering exceptional thermal efficiency and durability.
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 heat exchangers find their indispensable applications across an extensive range of fields, 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, solvent recovery systems, and steam to air heat exchangers..
Cangzhou Datang Steel Pipe Co., Ltd has proudly established itself as a trusted processor and wholesaler, exporting premium products to global markets for over 17 years.
Explore our extensive selection of Finned tubes, Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers,along with top-notch Vaporizers and Evaporators, all available at Datang.
Our expansive inventory boasts high-quality carbon steel seamless pipes,as well as ERW pipes, SSAW pipes, and alloy steel pipes. We also offer a variety of pipe fittings and flanges.
We warmly invite you to visit our factory and we look forward to a fruitful collaboration with you.
As a distinguished manufacturer and wholesaler, DATANG STEEL PIPE Co., Ltd has been serving global markets with excellence for 17 years.
Our expert sales and technical teams are at your service, ready to design tailored solutions and offer product customization to suit your needs.
Discover our wide range of Finned tubes right here at Datang.
Our state-of-the-art production facilities include:
'G' Type Fin Tube (Embedded Finned Tube), 'L', 'LL', 'KL' Type Fin Tubes (Wrap Around Finned Tube) - with 6 production lines,
High Frequency Welded Fin Tubes (including Serrated Finned Tubes) - with 8 production lines,
Laser Welding Finned Tubes - available on 1 production line,
Extruded Finned Tubes (both Bimetallic Fin Tube & Integral Monometallic Low Fin Tube) - with 6 production lines.
We also specialize in customizing Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers, as well as Vaporizers and Evaporators tailored to your specifications.
Our extensive spot inventory includes high-quality carbon steel seamless pipes, ERW, SSAW, and alloy steel pipes, all essential for fin tube manufacturing.
Additionally, we provide a comprehensive range of pipe fittings and flanges.
We eagerly anticipate welcoming you to our factory and establishing a robust partnership.
Customer Tour&Cooperation
Frequently Asked Questions: Discover More About Us
Q1: Are you a factory or a trade company?
A1: We are a cutting-edge factory complemented by a dynamic subsidiary international trade company dedicated to exporting.
Q2: What can you provide?
A2: As an esteemed industry leader, we specialize in crafting top-tier Radiator and Heat Exchanger Equipment, along with a variety of premium Fin Tubes.
Q3: Where is your factory located?
A3: Our state-of-the-art facility is strategically located in Cangzhou city, Hebei province, China, equipped with diverse, advanced machinery.
Q4: How do you ensure quality control?
A4: We provide an Inspection & Guarantee Certificate with every shipment, and Third Party Inspection is an available option for added assurance.
Q5: What distinct advantages does your company offer?
A5: Our edge lies in our team of highly skilled professionals, exceptionally competitive pricing, and unparalleled after-sales service, setting us apart from the competition.
Q6: Can you handle the shipping logistics?
A6: Absolutely, we streamline your shipping needs with the assistance of our trusted forwarders, partners for many years.
Q7: What is your delivery timeline like?
A7: Our delivery schedule is order-dependent, typically ensuring shipment within 30 days upon receipt of your advance payment.
Q8: Are sample products available?
A8: Yes, we offer complimentary small samples readily available in-store for your convenience.
Reach out today for further information and let us assist you with all your needs!
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