A complete range of square-frame industrial exhaust fans, 350 mm to 630 mm. Available in two flavors: 3-phase (380V) for heavy-duty loads and single-phase (220V) for light to medium use. Ideal for factory ventilation, workshops, warehouses, cold rooms, and commercial projects.
Common specifications across all models
Brand: WEIGUANG (Hangzhou)
Frequency: 50 Hz
Insulation Class: F
Protection Class: IP54
Operating Type: S1 continuous
Ambient Temperature: -30°C to +60°C
Motor Protection: Thermocontact 150°C ±5°C
Bearings: Ball bearings
Mounting: Square Frame
Approvals: CCC and CE
4D Series — 3-Phase (380V)
Heavy-duty industrial models with power from 250W to 800W and airflow up to 11,611 m³/h.
