Aluminum Fin Tubes
Product Structure
Aluminum fin tubes mainly consist of two parts: base tube and aluminum fin.
✔ Base tube:
High-precision seamless steel tubes, copper tubes or aluminum tubes are normally used to ensure smooth fluid flow inside the tube and provide excellent support and thermal conductivity. The inner wall is finely processed to reduce fluid resistance and improve heat exchange efficiency.
✔ Aluminum fin:
Made of high-purity aluminum alloy, tightly bonded with the base tube via rolling, welding, embedding or other processes. Fin types include plain fin, corrugated fin, serrated fin, louvered fin, etc. Suitable fin types can be selected based on heat exchange requirements to expand heat dissipation area, break boundary layers and boost heat transfer performance.
Core Product Advantages
✔ All products pass the following tests:
✔ Dimensional inspection: Outer diameter, wall thickness, fin height, pitch, length, etc.
✔ Visual inspection: Fin damage, deformation, cracks; base tube corrosion, dents, etc.
✔ Fin bonding strength: Tensile/torsion test to prevent fin detachment.
✔ Pressure test: Hydrostatic/pneumatic test for sealing and pressure resistance.
✔ Heat transfer performance test: Verify heat transfer coefficient under specified conditions.
✔ Free thermal simulation analysis: Custom fin structure design based on customer working conditions.
✔ Rapid prototyping: Standard samples delivered within 72 hours.
Technical parameters
| Item | Parameter Range |
| Base tube material | Steel tube (Q235, 20#, etc.), stainless steel tube (304, 316L, 321), copper tube (TP2, T2, etc.), aluminum tube (6063, 6061, etc.) |
| Outer diameter of base tube | 8mm–50mm |
| Wall thickness of base tube | 0.8mm–3.0mm |
| Fin material | Aluminum alloy 1060, 3003, etc. |
| Fin thickness | 0.1mm–0.5mm |
| Fin height | 5mm–30mm |
| Fin pitch | 1.5mm–10mm |
| Fin ratio | 5–30 (ratio of fin surface area to base tube surface area) |
| Heat transfer coefficient | 50–300 W/(m²·K) under typical working conditions |
| Operating temperature | -40℃–200℃ (higher/lower available with special treatment) |
| Operating pressure | 1.0MPa–10MPa (depends on base tube material and wall thickness) |
| Custom options | Base tube: aluminum, stainless steel, carbon steel, etc.Fin type: plain / corrugated / serratedSurface treatment: anodizing, electrophoretic coating, galvanizing |
Performance Advantages
Production Process
Our advanced production process ensures tight bonding between fins and base tube as well as high-efficiency heat transfer. Main steps:
✔ Base tube pretreatment:
Cleaning, derusting and degreasing to remove oil and impurities, improving bonding strength between base tube and fins.
✔ Shaping & straightening:
Adjust fin height, pitch uniformity and base tube straightness to meet standards.
✔ Surface treatment:
Galvanizing, painting, anodizing, etc., to improve corrosion resistance and appearance.
✔ Quality inspection:
Full inspection of dimensional accuracy, fin bonding strength, pressure resistance and heat transfer performance to ensure compliance.
✔ Fin forming & bonding:
Extrusion rolling: Aluminum strip is rolled into fins on the base tube via special mill, forming metallurgical bonding with high strength and excellent heat transfer, suitable for mass production.
Welding: High-frequency or laser welding to attach prefabricated fins, suitable for special shapes or thick-wall base tubes.
Winding: Prefabricated fins are wound around the tube and fixed/welded at ends, suitable for special or thick-wall tubes.
Embedding: Prefabricated fins are sleeved on the tube, then tightened via mechanical or hydraulic expansion, ideal for products with special fin pitch requirements.
Application Fields
✔ Air conditioning & refrigeration: Evaporators, condensers, cold-chain cooling equipment to improve system efficiency.
✔ HVAC: Radiators, underfloor heating, air-source heat pumps as core heat transfer components.
✔ Chemical industry: Reactors, heat exchangers, coolers for medium heating/cooling and waste heat recovery.
✔ Electric power: Generator cooling systems and waste heat recovery units to improve energy efficiency.
✔ Automotive: Radiators, air conditioning condensers for engine and AC system stability.
✔ New energy vehicle thermal management: Micro-channel aluminum fin tube assemblies for battery liquid-cooling systems, reaching 800W per square meter heat exchange, 60% weight of traditional designs, supporting longer range. Maintains over 90% heat dissipation efficiency at -30℃.
✔ Others: Food processing, pharmaceutical manufacturing, textile printing and dyeing for heat exchange and industrial waste heat recovery.
Service Commitment
✔ Customization: Personalized design and customization for base tube material, fin type, dimensions, etc.
✔ Technical support: Professional consultation, product selection, installation and operation guidance.
✔ Warranty: [2] years warranty under normal use; free repair or replacement for quality defects within warranty.
✔ After-sales service: Complete after-sales system for timely response and resolution.
Packaging
To avoid damage during transportation and storage:
✔ Single/small quantity: Plastic bag or bubble wrap packed in carton or wooden box.
✔ Bulk quantity: Pallet packaging secured with strapping to prevent shifting.
✔ Markings: Product name, specification, quantity, production date, precautions, etc.
RFQ (Request for Quotation)