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Industrial exhaust fans are vital ventilation equipment in industrial production environments. They are mainly used to exhaust harmful gases, smoke, dust, moisture, and waste heat, improve air quality, and ensure production safety and personnel health. The following is a systematic description of core parameters, application scenarios, and selection points:
Core parameters and types
Air volume (CFM/m³/h)
Small workshop (100m²): 5,000-10,000 m³/h
Large plant (>500m²): 30,000-100,000 m³/h
Selection formula: space volume × ventilation times/hour (chemical workshop requires 15-20 times/hour)
Wind pressure (Pa)
Low wind pressure (<200 Pa): direct exhaust without pipeline scenario
High pressure type (>800 Pa): long pipeline or filter system with high resistance scenario
Fan blade material and structure
Material type Applicable scenario Features
Aluminum alloy fan blade High temperature exhaust gas (<300℃) Corrosion resistant and light weight
Stainless steel fan blade Chemical corrosive gas Lifespan up to 10-15 years
Epoxy coated steel Humid environment (electroplating/food factory) Moisture-proof and rust-proof, cost-effective
Drive mode
Direct drive: maintenance-free, low noise (<65dB), suitable for office mixed areas
Belt drive: adjustable speed, maintenance cycle 6-12 months
