PERFORMANCE
The impeller features backward-curved single-plate blades (formed via laser cutting and stamping processes), assembled and welded into a single unit; it undergoes comprehensive static and dynamic balancing tests to ensure operational precision;
The casing is constructed from welded high-quality steel plate, with a surface finish achieved through polishing, anti-rust treatment, and hot-melt powder coating;
The base is fabricated from welded structural steel and incorporates rubber or spring vibration isolators; it features an aesthetically pleasing, compact, and stable design;
The fan can be customized with options such as an inspection port, drain valve, airflow control damper, inlet flange reducer, silencer, etc.;
The Model 4-72 fan offers high static pressure and high rotational speed, making it suitable for exhaust and ventilation applications involving long, narrow ductwork where noise levels are not a primary concern.
The company follows the service principle of “user first” and has set up a professional technical support team dedicated to serving every customer with care.
Technical Specifications
| Machine Number（ No ） | Rotational speed（ r/min ） | weight（kg） | power（KW-P） | Airflow volume（m3/h） | Total pressure（Pa） | noisedB(A) | Air inlet (Inner diameter, mm) |
Air outlet / Length × Width (Inner diameter, mm) |
90-degree external dimensions (Length × Width × Height) |
| 3.55A | 1450 | 46 | 0.75-4Three Phase | 1332-2634 | 393-247 | ≤65 | Ø350 | 256*240 | 670*580*670 |
| 48 | 0.75-4Single Phase | ||||||||
| 4A | 1450 | 54 | 1.1-4Three Phase | 2006-3709 | 501-329 | ≤67 | Ø400 | 290*270 | 740*630*755 |
| 56 | 1.1-4Single Phase | ||||||||
| 4.5A | 1450 | 88 | 1.5-4Three Phase | 2856-5281 | 634-416 | ≤68 | Ø400 | 320*300 | 840*680*840 |
| 90 | 1.5-4Single Phase | ||||||||
| 5A | 1450 | 94 | 2.2-4Three Phase | 3864-7728 | 790-502 | ≤70 | Ø450 | 350*340 | 930*745*930 |
| 96 | 2.2-4Single Phase | ||||||||
| 5.6A | 1450 | 110 | 3-4Three Phase | 5310-9790 | 960-657 | ≤74 | Ø500 | 400*370 | 1021*780*1021 |
| 112 | 3-4Single Phase | ||||||||
| 6A | 1450 | 126 | 4-4Three Phase | 6677-13353 | 1139-724 | ≤76 | Ø500 | 430*400 | 1070*840*1025 |
| 6.3A | 1450 | 160 | 5.5-4Three Phase | 8381-16358 | 1359-856 | ≤78 | Ø600 | 450*420 | 1140*915*1040 |
| 7.1A | 1450 | 194 | 7.5-4Three Phase | 10086-19363 | 1579-989 | ≤80 | Ø600 | 500*480 | 1280*995*1165 |
| 7.5A | 1450 | 252 | 11-4Three Phase | 13000-24000 | 1768-1189 | ≤90 | Ø600 | 500*480 | 1365*1100*1240 |
| 252 | 15-4Three Phase | 15000-30000 | 1968-1689 | ≤92 | Ø600 | 540*500 | 1365*1150*1240 |
