greenhouse

HVAC / EXHAUST FANS (PUSH PULLL, HAMMER DROP TYPES)

Drop Hammer Style Ventilator, Main Structure : The ventilation fan contains blade, motor, frame, protection mesh, standing pole, shutter, wind collector, etc. The air flow driven b

Drop Hammer Style Ventilator, Main Structure : The ventilation fan contains blade, motor, frame, protection mesh, standing pole, shutter, wind collector, etc. The air flow driven by the fan blade opens the shutters automatically. When the fan stops, the shutters will be closed by the shut devices itself. Features: The holes on the frames are punched by the CNC to make sure more precisely. The galvanised sheets are the most thickness to make sure anti-rust and anti-corrosion. Aluminium alloy die cast wheel to make sure higher strength and new model twist punch structure to improve the air volume. The motors are indigenously developed best quality and highest standards. The failure rate is 3 in 10,000 sets. Protection class IP55 and insulation class F grade. Quality inspections are including Noice decibels, Shake, Air volume, Motor, Balancing test, rotational concentricity, the RPM of fan blades, fan efficiency. The wind collector materials are steel, FRP, ABS engineering plastics. The protection mesh can be easily maintained. CAD drawings to make sure the accuracy. Key Dimensions: Blades Diameter (mm/ inches) Blades Rotational Speed (RPM) Motor Rotational Speed (RPM) Air Flow (CMH) Total Pressure (pa) Noice Decibels Import Power (W) Rated Voltage (V) Body Height (mm) Body Width (mm) Body Length (mm) 710/28 660 1400 20,000 60 ≤70 370 380/220 800 800 400 750/30 630 1400 22,000 65 ≤70 370 380/220 900 900 400 900/36 610 1400 25,000 70 ≤70 550 380/220 1000 1000 400 1000/39 600 1400 32,500 70 ≤70 750 380/220 1100 1100 400 1100/43 460 1400 38,000 73 ≤70 750 380/220 1220 1220 400 1250/50 439 1400 44,000 56 ≤70 1100 380/220 1380 1380 400 1400/55 325 1400 55,800 60 ≤70 1500 380/220 1530 1530 400

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