The 100JM/25/4/9/28-deg long cased axial fan is a 4‑pole, 3‑phase unit suitable for a range of industrial and commercial ventilation applications. Its axial design enables efficient airflow through duct systems and confined spaces. The long case construction provides a stable housing, making it suitable for installations where airflow needs to be directed through extended lengths or specific ventilation layouts. This fan is commonly used to support general ventilation, extraction, and air circulation in manufacturing areas, plant rooms, and other operational environments requiring dependable air movement. It is built for continuous duty and consistent performance under varied operating conditions.