Inner-grooved copper coils feature a uniform, dense microstructure, high dimensional accuracy, consistent and complete fin geometry, and low internal residue. Compared with smooth copper tubing of the same size, they provide 65-100% more internal surface area and a heat-transfer coefficient 1.8-2.0 times higher. They are widely used in HVAC and refrigeration systems and support the industry’s transition toward higher efficiency, lower energy consumption, environmental responsibility, and healthier indoor environments.
Dimensional Range / Technical Specifications
| Outside Diameter (mm) | 5.0, 6.35, 7.0, 7.94, 9.52, 12.7, 15.88 |
| Wall Thickness (mm) | >0.20 |
| Fin Height (mm) | 0.06-0.25 |
| Fin Tip Angle (°) | 12-60 |
| Helix Angle (°) | 0-45 |
| Number of Fins | 30-85 |
Note: All specifications can be customized to customer requirements.
Applications
Changzhou Enreach Copper Co., Ltd. applies advanced, efficient, energy-saving and continuous copper processing technologies to deliver high-quality precision copper tubes with low energy consumption, cleaner production and high yield rates. Our products serve customers worldwide across air conditioning, refrigeration, HVAC, telecommunications, construction, automotive, marine engineering and high-efficiency heat exchange applications.
