Axial Fans: High Airflow, Low Energy Ventilation Solutions

Axial fans for tunnel ventilation are engineered to address the unique challenges of tunnel environments—limited space, high air resistance, and the need for continuous, reliable air movement. At Qingdao Pengsheng Electric Appliance Co., Ltd., these fans play a critical role in maintaining safe air quality, controlling temperatures, and supporting emergency smoke extraction in road, rail, and metro tunnels. Tunnels require high air volume to replace stale air with fresh outside air, dilute vehicle emissions (like carbon monoxide), and prevent heat buildup from traffic. Our axial fans for tunnels are designed to deliver massive air flow rates—often in the range of 100,000+ m³/h—using large-diameter impellers and powerful, durable motors. Their axial design ensures efficient air movement over long distances, crucial for tunnels that can stretch kilometers. Reliability is paramount, as tunnel ventilation cannot afford downtime. Our fans feature heavy-duty construction: housings made from weather-resistant steel, motors with overload protection, and bearings designed for continuous operation (24/7, 365 days a year). They are also built to withstand vibrations, dust, and varying temperatures, common in tunnel environments. In emergencies, such as fires, these fans can reverse direction to act as smoke extractors, helping to clear smoke and improve visibility for evacuation. Some models are integrated into intelligent control systems, allowing remote monitoring and speed adjustment based on real-time tunnel conditions (e.g., traffic volume, air quality sensors). We collaborate with tunnel engineers to customize fan placement (ceiling, wall, or portal-mounted) and performance to match tunnel length, traffic type, and environmental regulations. If you’re involved in tunnel infrastructure and need reliable ventilation solutions, contact us to explore our axial fans for tunnel ventilation.