Backward-curved impeller high-efficiency low-pressure centrifugal fan
Product description
Our backward-curved impeller centrifugal fan delivers exceptional efficiency for low-pressure, high-volume airflow applications. The aerodynamically optimized backward-curved blades provide non-overloading power characteristics, stable operation across a wide performance range, and energy savings compared to conventional designs. The precision-engineered impeller, dynamically balanced for smooth, vibration-free operation, ensures reliable performance with minimal noise generation. Constructed from durable materials with robust housing design, this fan offers long service life in continuous industrial applications. The low-pressure design makes it ideal for general ventilation, air circulation, drying systems, process air supply, and exhaust applications where high airflow at moderate static pressures is required. Available in multiple sizes with customizable configurations including direct-drive or belt-drive options, various material grades, and accessory packages to meet specific installation requirements.
Product structure


Product parameters
| series | model | Rotation Speed (r/min) |
Total Pressure (Pa) |
Air Capacity (m³/h) |
Power (kW) |
| 4-10 | 8C | 1450 | 2104~1400 | 16156~30993 | 18.55 |
| 9C | 960 ~ 1450 | 775 ~ 2668 | 15229 ~ 44128 | 11 ~ 37 | |
| 10C | 730 ~ 1450 | 553 ~ 3301 | 15886 ~ 60533 | 7.5 ~ 55 | |
| 11C | 730 ~ 1450 | 669 ~ 4003 | 21144 ~ 80570 | 11 ~ 90 | |
| 12C | 730 ~ 1450 | 797 ~ 4777 | 25661 ~ 104600 | 15 ~ 132 | |
| 14C | 730 ~ 1450 | 1086 ~ 6541 | 43591 ~166100 | 37 ~ 315 | |
| 16C | 580 ~ 960 | 895 ~ 3709 | 51699 ~ 164150 | 45 ~ 185 | |
| 18C | 580 ~ 960 | 1133 ~ 4710 | 73610 ~ 233730 | 75 ~ 280 | |
| 20C | 580 ~ 960 | 1400 ~ 5837 | 100970 ~ 320610 | 110 ~ 520 | |
| 22C | 480 ~ 960 | 1216 ~ 6865 | 116000 ~ 434000 | 140 ~ 850 | |
| 25C | 480 ~ 730 | 1579 ~ 5138 | 171000 ~ 484000 | 165 ~ 700 | |
| 28C | 375 ~ 730 | 1205 ~ 6400 | 187000 ~ 680000 | 320 ~ 1250 | |
| 29.5C | 596 ~ 745 | 3236 ~ 7218 | 348000 ~ 810000 | 800 ~ 1600 |