negative-pressure ventilation fan

Detailed Product DescriptionTSBD-Negative-pressure air fan The outline border adopt advanced automatic process, more accuracy, material galvanized sheet, good tensile and corrosion resistant.The 6-blade propeller is made of aluminium /magnesium alloy with light weight, high intensity and good toughness.The aluminum-case motor features high temperature resistance and strong corrosion resistance. Special motor hole wind shield, avoid wind losing to reach the best wind suck effect.The bearing is of high intensity, low noise and long service life.The driven central pulley in its exclusive and reliable configuration with only one ball bearing, applied by us since 1979 and the fan blade mounting supports are made in diecast aluminium alloy. Absolutely rustproof. Allowing fora fast and simple assembly.Shutter blade is made of galvarised steel with lower noise and strong pressure features.The TSBD Ventilation Fan is characterized by its unique shutte blades and closing system through a no-dynamic non-rotative . Non-rotative arrangement of masses . This system guarantees trouble-free operation for many yearsStrictly quality test process: noise test, vibration test, concentric performance test ,fan bladeturning speed test. Negative-pressure air fan technical parameter Model Dimension Length*width*thickness(mm) Air flow rate(m3/h) Power (kw) Voltage (v) blade diameter (mm) Speed (r/min) TSBD-1 1380*1380*400 44500 1.1 380 1270 427 TSBD-2 1100*1100*400 32500 0.75 380 1000 427 TSBD-3 900*900*400 30000 0.37 380 770 427 Noise(db) Outer frame material Fan blade material Weight(kg) 65 galvanized sheetStainless steel85 60 galvanized sheet Stainless steel 55 55 galvanized sheet Stainless steel 50 Negative-pressure air fan is suitable for ventilation and temperature reduction of high-temperature areas like chemical fiber, textile, spinning, garment, electronic industry, printing, chemical engineering , etc. Project Installation Practice