Engineering Cases

Welcome to the Longwell Engineering Cases and Custom Projects center. Here, we showcase our real-world B2B HVAC ventilation and cooling solutions, detailing how we address specific design challenges for industrial, commercial, and agricultural applications.

Explore our portfolio of custom-engineered axial fans, forward and backward curved centrifugal blowers, EC/AC motors, and specialized fan casings. Each case study contains detailed technical specifications, dimensions, 2D/3D CAD drawings (DWG/STP), and performance parameters (airflow, static pressure, and efficiency curves). Whether it is modifying guard nets, achieving IP55/IP68 dust and water resistance, or designing tailored casing solutions, see how Longwell delivers engineering excellence tailored to the critical demands of HVAC professionals worldwide.