4-72A Centrifugal Fan from China Factory | Reliable Suppliers for High Airflow Industrial Ventilation Solutions
Technical Parameters
| Model | Speed (r/min) |
Power (kW-P) |
Traffic (m³/h) |
Total pressure (Pa) |
Voltage (V) |
Frequency (Hz) |
Horsepower (HP) |
|---|---|---|---|---|---|---|---|
| 2.5A | 2900 | 0.75-2 | 800-1650 | 790-485 | 220/380 | 50 | 1 |
| 2.8A | 2900 | 1.5-2 | 1131-2356 | 994-606 | 220/380 | 50 | 2 |
| 3.2A | 2900 | 2.2-2 | 1688-3517 | 1300-792 | 220/380 | 50 | 3 |
| 1450 | 1.1-4 | 844-1758 | 324-198 | 220/380 | 50 | 1.5 | |
| 3.6A | 2900 | 3-2 | 2664-5268 | 1578-989 | 220/380 | 50 | 4 |
| 1450 | 1.1-4 | 1332-2634 | 393-247 | 220/380 | 50 | 1.5 | |
| 4A | 2900 | 5.5-2 | 4012-7419 | 2014-1320 | 380 | 50 | 7.5 |
| 1450 | 1.1-4 | 2006-3709 | 501-329 | 220/380 | 50 | 1.5 | |
| 4.5A | 2900 | 7.5-2 | 5712-10562 | 2554-1673 | 380 | 50 | 10 |
| 1450 | 1.1-4 | 2856-5281 | 634-416 | 220/380 | 50 | 1.5 | |
| 5A | 2900 | 15-2 | 7728-15455 | 3187-2019 | 380 | 50 | 20.5 |
| 1450 | 2.2-4 | 3864-7728 | 790-502 | 220/380 | 50 | 3 | |
| 5.6A | 2900 | 22-2 | 10122-25736 | 4152-2330 | 380 | 50 | 30 |
| 1450 | 3-4 | 7062-9885 | 957-759 | 220/380 | 50 | 4 | |
| 6A | 1450 | 4-4 | 6677-13353 | 1139-724 | 380 | 50 | 5.5 |
| 6.3A | 1450 | 5.5-4 | 10110-15810 | 1247-968 | 380 | 50 | 7.5 |
| 7.1A | 1450 | 11-4 | 12676-20513 | 1572-1168 | 380 | 50 | 15 |
| 960 | 3-6 | 8392-13581 | 689-512 | 380 | 50 | 4 |
Frequently Asked Questions
What is the standard operating voltage and frequency for these models?
The equipment operates at a standard frequency of 50Hz. Depending on the specific model and power requirements, the voltage is either dual-compatible at 220/380V or fixed at 380V.
Do the models support different operational speeds?
Yes, several models such as the 3.2A, 3.6A, 4A, 4.5A, 5A, and 5.6A offer dual-speed configurations, typically running at either 2900 r/min or 1450 r/min, allowing for adaptable performance based on your requirements.
Which model provides the highest traffic capacity?
The 5.6A model running at 2900 r/min provides the highest traffic capacity, reaching up to 25,736 m³/h.
How does the speed (r/min) affect the total pressure?
Higher operational speeds significantly increase the total pressure. For example, the 5.6A model generates 4152-2330 Pa at 2900 r/min, but only 957-759 Pa when operating at 1450 r/min.
What is the horsepower range across the entire series?
The horsepower scales with the model size and speed, starting from 1 HP in the compact 2.5A model and going up to a maximum of 30 HP in the robust 5.6A model at 2900 r/min.
Is the 7.1A model available in a high-speed configuration?
Based on the current parameters, the 7.1A model is designed for lower-speed, high-efficiency operations, available in 1450 r/min and 960 r/min configurations.




