55kw, 75kw, and 90kw Explosion-Proof Variable Frequency Axial Flow Tunnel Fans

55kw, 75kw, and 90kw Explosion-Proof Variable Frequency Axial Flow Tunnel Fans. Explosion-Proof Design: Suitable for hazardous environments in tunnels, railways, and hydropower projects. Multi-Stage Customization: Available in 3, 4, or 5 stages to meet specific pressure and flow requirements. Tailor-Made Blades: Combines multiple main and guide blade types for full-condition customization. High Efficiency: 92% efficiency with optimized aerodynamic design for significant energy savings. Low Noise Operation: Sound pressure level of 80dB, ensuring environmental protection and safety. Flexible Material Options: Impellers available in Iron, Stainless Steel, Mn-Steel, or customized materials. Wide Power Range: Motor power options from 2.2kW to 1250kW to suit various tunnel sizes. Standard Frequency Control: All units equipped with frequency conversion control systems for optimal performance.