SDF Type Axial Fan is a professional counter-rotating axial flow fan developed specifically for tunnel construction ventilation. Widely adopted in highway tunnels, railway tunnels, water conveyance tunnels and underground engineering projects, it undertakes fresh air supply and harmful gas exhaust for tunnel working faces.
Equipped with two-stage counter-rotating impellers driven by separate full-copper motors, this fan can deliver high static pressure and large air volume. It maintains good ventilation performance even in long-distance tunnels with high air resistance. The motor adopts F-class insulation and IP54 / IP55 protection grade, adapting to humid and dusty tunnel site conditions for continuous long-time operation.
Compact structure, light weight and modular design make the fan convenient for transportation, hoisting and on-site installation. It supports variable frequency speed regulation to adjust air volume according to tunneling progress, saving energy effectively. Explosion-proof version is optional for gas-containing tunnels.
We can customize specifications, voltage and mounting accessories. CE certification and relevant test reports are available. OEM service is acceptable. It is reliable ventilation equipment for tunnel excavation projects
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