Finned Tube Radiators Manufacturer in China
Datang Finned Tube — High-Quality Finned Tube Radiators
As a leading manufacturer in the heat transfer industry, Datang Finned Tube designs and markets high-performance, high-quality finned tube radiators. Engineered for demanding industrial and commercial heating and cooling applications, our radiators efficiently facilitate heat transfer between internal fluids and the surrounding air.
Our radiators utilize finned tubes, which enhance performance by securely bonding fins to a base tube to increase the heat exchange surface area. This design offers two to three times the heat transfer efficiency of bare-tube radiators while also reducing material costs. This ensures exceptional thermal efficiency, maintaining superior performance even in systems with low air-side heat transfer coefficients.
Commonly Used Finned Tube Types for Finned Tube Radiators
Datang Finned Tube deeply understands that the durability of a radiator depends heavily on the bonding quality between the fins and the tube body.
- High-Frequency Welded (HFW) finned tubes achieve a 95% welding penetration rate, delivering a complete and uniform structural bond. This enables them to withstand extreme temperatures, high mechanical stress, and severe thermal cycling in heavy industrial application scenarios.
- Laser-welded finned tubes offer a 99% welding penetration rate with a heat-affected zone that is virtually zero. This makes them particularly well-suited for high-end applications utilizing stainless steel and titanium materials.
- Extruded/Bimetallic finned tubes feature a manufacturing process that ensures flawless thermal contact. Furthermore, the outer muff completely shields the inner tube, effectively protecting it from atmospheric corrosion.
- Embedded (G-Type) finned tubes provide a highly secure fin attachment and can withstand elevated temperatures up to 180°C to 400°C, making them perfectly suited for rigorous, high-temperature cycling working conditions.
- L-Foot (including KL and LL types) finned tubes are designed for low-to-medium temperature conditions, serving as an economical and highly cost-effective choice for air coolers.
Why Partner with Datang Finned Tube?
We implement strict quality inspections throughout the entire process, from raw materials to the final completion of the radiator. For every stage of production, we provide real-time photos and videos, giving you the transparency of being on-site and allowing you to clearly understand every single manufacturing step.
If you do not have a design in place, configuring the right finned tube radiator requires precise engineering calculations. With years of manufacturing experience and custom design capabilities, Datang Finned Tube can provide heat exchangers that perfectly match your specific operating pressures, temperatures, and fluids.
Are you looking for a reliable heat exchange solution for your next project? Contact the Datang Finned Tube engineering team today to discuss your specific application parameters, fluid types, or design requirements.
Finned Tube Radiator By Process
Finned tube radiators can be classified according to their manufacturing process into Extruded Type (Bimetallic) finned tube radiators, Wound Type (L/LL/KL Foot) finned tube radiators, High-Frequency Welded (HFW) finned tube radiators, Embedded (G-Type) finned tube radiators, etc.
Our radiators utilize extruded bimetallic finned tubes to ensure zero contact thermal resistance for high-efficiency heat transfer.
Wound type (L/LL/KL Foot) finned tube radiators,for low-to-medium temperature applications with flexible mechanical-tension wrapping.
This radiator uses high-frequency current to spirally weld steel strips to the base tube, resulting in strong bonding and resistance to high pressure and high temperature.
This finned tube radiator uses G-type finned tubes, which are firmly bonded and resistant to vibration and thermal shock.
Finned Tube Radiator Classification
Finned tube radiators can be categorized by application into: HVAC finned tube radiators, industrial drying and heat treatment finned tube radiators, waste heat recovery finned tube radiators, petrochemical and power finned tube radiators, and agricultural greenhouse finned tube radiators, etc.
Finned tube radiators provide a stable heat source in wood drying rooms, food processing drying lines, and dyeing and finishing machines.
Finned tube radiators are installed in the flue gas duct at the tail end of boilers to recover waste heat from flue gas to preheat air or water, resulting in significant energy savings.
Finned tube radiators are used in air coolers to cool process fluids or condensed steam, especially as an alternative to water-cooling systems in water-scarce areas.
Finned tube radiators provide uniform heat to vegetable and flower greenhouses, preventing condensation and frost damage.
Engineering Design
We exclusively utilize HTRI and EDR design software from a renowned European software provider.
With 18 years of strategic partnership, we have successfully designed, manufactured, and exported heat exchangers to over 50 countries worldwide.
Customer feedback consistently confirms that actual cooling performance aligns precisely with theoretical design values.
We can provide detailed drawing after your order.We can also provide Custom services.
Finned Tube Radiator Water Pressure Test
Finned tube radiator water pressure test uses water as the medium. Water is injected into the equipment and pressurized to test the equipment’s sealing and pressure-bearing capacity.
Pressure testing is crucial for the safe operation of finned tube radiators. It allows for the timely identification and resolution of equipment problems, such as leaky seals and insufficient pressure-bearing capacity. Failure to identify and address these issues can lead to equipment failures and even accidents. Therefore, pressure testing is not only a test of equipment performance but also a safeguard for industrial safety.
Finned Tube Radiator Air Pressure Test
An air pressure test on finned tube radiator uses gas as the medium. Pressure testing tests equipment performance by applying pressure. Strictly following operating procedures ensures the safety and reliability of the process and results.
Pressure testing is essential after equipment installation or maintenance. It helps verify the equipment’s sealing and pressure-bearing capacity, ensuring that safety incidents such as leaks or ruptures do not occur during operation.
Nondestructive Magnetic Particle Testing of finned tube radiator
Nondestructive magnetic particle inspection of air coolers uses magnetic particles as a detection medium to observe defects in finned tube radiators.
Magnetic particle inspection has a sensitivity that can detect discontinuities as narrow as 0.1μm. By combining multiple magnetization methods, magnetic particle inspection is virtually unaffected by workpiece size and geometry, and can detect defects in all directions.
Finned Tube Radiator Package
Payment Terms:T/T, LC
Delivery: 15-30 days after payment
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Iron frame packing boxes and the desiccants are put into each package for continental transportation as well. or as required
Finned Tube Radiator Application
High-efficiency industrial finned tube radiators for heating significantly improve thermal efficiency by increasing the heat exchange area through the addition of fins. Widely used in factories, greenhouses, and other locations, they feature rapid heat dissipation, energy saving, corrosion resistance, and long service life. As a key heat exchange device in industrial heating systems, they effectively reduce energy consumption and ensure stable heating.
The circular fins finned tube radiator for vegetable greenhouses is specifically designed for agricultural greenhouses. Its circular fin structure ensures even heat distribution and prevents dust accumulation. It is corrosion-resistant, has strong pressure resistance, and effectively improves temperature stability within the greenhouse, promoting crop growth. This energy-efficient device is an ideal choice for modern intelligent greenhouse heating systems.
Steam finned tube radiators utilize steam as the heat medium, achieving efficient and rapid heat dissipation through densely packed fins that significantly expand the heat exchange area. With their compact structure and strong pressure resistance, they are widely used in industrial drying, heating, and greenhouse applications. This equipment boasts high thermal efficiency and significant energy savings, making it a core heat exchange element in steam heating systems.
This chemical industry spiral/wound finned tube radiator utilizes a high-frequency welding process to tightly wind steel strips around a base tube, forming high-strength spiral fins. It boasts extremely high heat exchange efficiency, high pressure resistance, corrosion resistance, and is not prone to dust accumulation. Specifically designed for chemical reactors, towers, and waste heat recovery systems, it can withstand harsh operating conditions, ensuring stable and efficient system operation.
Finned tube radiators are among the most widely used heat exchange equipment in gas-to-liquid heat exchangers, serving as critical heat dissipation components in heating, industrial cooling, and refrigeration systems. They achieve enhanced heat transfer by attaching fins to standard base tubes and are generally used for heating or cooling air. Featuring a compact structure and a large heat transfer area per unit, they are widely applied across various fields such as textiles, printing and dyeing, petroleum, chemicals, drying, and electric power.
Fluid Distribution: The hot or cold fluid (such as high-pressure steam, thermal oil, hot water, or refrigerant) flows through the core inner tubes.
Thermal Conduction: The heat from the internal fluid rapidly passes through the tube wall and is directly conducted to the attached metal fins.
Thermal Convection: Air passes through the dense fin array via natural ventilation or forced draft fans. By utilizing the vastly expanded surface area, convective heat transfer is achieved, maximizing the absorption or release of thermal energy.
Core Tubes (Base Tubes): Available material options include carbon steel (such as A179, A106), stainless steel (304, 316L), copper, and titanium.
Fins: Typically manufactured from aluminum (offering lightweight properties and excellent thermal conductivity), copper, carbon steel, or stainless steel (suitable for highly corrosive environments).
Headers and Manifolds: Precision-engineered to guide the fluid, optimize the uniform distribution of inlet and outlet fluids across the tube bundle, and withstand system pressure.
Frames and Casings: Designed with a heavy-duty structure to effectively guide airflow, protect the fin structure, minimize vibration, and achieve smooth airflow channeling.
Heavy-Duty Casings: Protective structural components that efficiently direct airflow while safeguarding the fragile fin structures from physical damage.
Bare tubes require a massive footprint due to low heat transfer efficiency, whereas finned tube radiators increase the external surface area by 10 to 20 times, drastically improving thermal efficiency, minimizing the overall equipment footprint, reducing structural weight, and significantly lowering both your initial capital investment and long-term energy costs.
Quality and durability are always our top priorities, which is why every finned tube radiator manufactured by Datang undergoes rigorous quality control protocols—including automated weld inspections, precise dimensional checks, and strict hydraulic or pneumatic pressure testing to ensure zero leakage under maximum operating limits—while our precision bonding technologies, such as 99% penetration laser welding, eliminate air gaps between the fin and the tube to prevent increased thermal resistance over years of continuous operation.
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Finned Tube Radiators FAQs
A: The finned tube radiators can be customized. We can produce it according to your drawings, and we can sign a confidentiality agreement for your patented products. For more information, please contact us.
A: Always a pre-production sample,before mass production;always final inspection before shipment.
Inspection & Guarantee Certificate is supplied with shipment, and the Third Party Inspection is available.
A: One year after shipping.
A: We have workshop can supply all parts of the finned tube radiator, and 90% of spare parts can be distributed to any
place in the world within one week!
A: We can arrange for experienced engineers to provide online video guidance on product installation and train your staff on equipment operation and maintenance.
A: We have many professional and technical personnel, more competitive prices and better after-dales service than other companies.
A: Datang has high frequency resistance welding finned tube production line 18, extruded finned tube equipment 30, laser welding finned tube production line 2, wound finned tube production line 12. The annual capacity can reach 100,000 tons, the specification φ 18-273mm finned tube, according to the customer requirements of the standard production, service has exceeded 3000+ enterprises.