Unstable Airflow? — CNC-Stamped H/L Fins Ensure Uniform Flow

Uneven airflow within heat exchangers can cause local overheating, reduced thermal efficiency, and premature equipment wear. This often stems from inconsistent fin spacing or deformation during manufacturing.

Zhongyue Metallurgy eliminates these problems through CNC stamping and automated welding integration, which ensures fin spacing precision within ±0.1mm. Both H-type welded fin tubes and Wheel-type L fin tubes maintain consistent channel geometry, allowing airflow to pass uniformly between fins and minimizing turbulence or flow blockages.

Test data show a 15% reduction in gas flow resistance and a 20% increase in heat transfer uniformity compared to conventional finned tubes. The precise alignment of fins also reduces vibration and noise, improving the long-term stability of the entire heat exchange system.

Fins can be produced from carbon steel, stainless steel, or alloy steel, with corrosion-resistant red oxide zinc phosphate coating on the exterior and VCI inhibitor protection on the interior. These ensure stable performance under high-temperature and high-humidity conditions.

Zhongyue’s CNC-engineered H/L fin tubes are now widely used in boilers, economizers, and industrial heat recovery systems. With consistent geometry and optimized fluid dynamics, they offer higher thermal efficiency, improved reliability, and longer operational life.