SINOAK produces custom fin dies for heat exchanger fin manufacturing, including louver fins, sine wave fins, high collar fins and special fin patterns for condensers, evaporators, air conditioners and refrigeration equipment. A precise fin die helps improve fin accuracy, collar quality, heat transfer performance and production stability.We design fin dies according to fin material, tube diameter, tube pitch, row number, fin pitch, louver angle and press line requirements. The goal is to match the die with the customer’s fin press machine and final heat exchanger application, reducing trial time and supporting stable mass production.Applications: HVAC coils, refrigerator evaporators, cold storage evaporators and condenser fins.Keywords: fin die, heat exchanger fin die, louver fin die, high collar fin die, condenser fin die.Support: drawing review, custom design, manufacturing and after-sales adjustment guidance.