Product Introduction
The 4-72A Stainless Steel Centrifugal Fan is a durable, corrosion-resistant ventilation fan engineered for use in environments that require strong airflow, oil resistance, and long-lasting performance. With its stainless steel impeller and casing, it is ideal for handling oil fumes, corrosive gases, and humid air, making it a trusted choice for kitchens, chemical plants, and industrial exhaust systems.
Application Industries & Uses:
- Chemical plants and laboratories
- Commercial kitchens and restaurants
- Food processing facilities
- Industrial exhaust and fresh air systems
- Humid or corrosive air environments
Features & Construction
- Impeller:
- Multi-wing stainless steel impeller with forward-curved blades
- Balanced for smooth, vibration-free airflow
- Casing & Housing:
- Entire casing made from high-grade stainless steel
- Corrosion-proof and oil-resistant, suitable for heavy-duty environments
- Performance:
- Provides large air volume with stable operation
- Handles oil fumes and mildly corrosive gases effectively
- Motor:
- Direct-driven pure copper motor
- Stable, durable, and easy to maintain
Types & Parameters
| Type |
Machine Numbers |
Rotation |
Outlet Position |
Transmission Mode |
| Type A |
No. 2.5, 3.15, 3.55, 4, 4.5, 5, 5.6, 6, 6.3, 7.1 |
Right-handed (clockwise) / Left-handed (counterclockwise) |
Adjustable 0°–225° (intervals: 22.5° or 45°) |
Type A |
| Model |
Speed (r/min) |
Power (kW-P) |
Traffic (m³/h) |
Total Pressure (Pa) |
| 2.5A |
2900 |
0.75-2 |
800-1650 |
790-485 |
| 2.8A |
2900 |
1.5-2 |
1131-2356 |
994-606 |
| 3.2A |
2900 |
2.2-4 |
1688-3157 |
1300-792 |
| 3.2A |
1450 |
1.1-4 |
844-1758 |
324-198 |
| 3.6A |
2900 |
3-7.5 |
2664-5268 |
1578-989 |
| 3.6A |
1450 |
1.1-4 |
1332-2634 |
393-247 |
| 4A |
2900 |
5.5-11 |
4012-7419 |
2014-1320 |
| 4A |
1450 |
1.5-4 |
2006-3709 |
501-329 |
| 4.5A |
2900 |
7.5-15 |
5712-10562 |
2554-1673 |
| 4.5A |
1450 |
1.1-4 |
2856-5281 |
634-416 |
| 5A |
2900 |
11-22 |
7728-15455 |
3187-2019 |
| 5A |
1450 |
2.2-7.5 |
3864-7728 |
790-502 |
| 5.6A |
2900 |
15-30 |
10122-25736 |
4152-2530 |
| 5.6A |
1450 |
3-11 |
7062-9885 |
957-759 |
| 6A |
2900 |
22-45 |
16677-33353 |
5592-3420 |
| 6A |
1450 |
5.5-4 |
6677-13535 |
1247-968 |
| 7.1A |
1450 |
11-4 |
10110-15810 |
1572-1168 |
| 7.1A |
960 |
3-6 |
8392-13581 |
689-512 |
Technical Specifications
| Specification |
Details |
| Material |
Stainless steel (impeller & casing) |
| Traffic / Application |
Kitchens, restaurants, chemical plants, industrial exhaust |
| Power |
Direct-driven motor |
| Air-flow |
Large airflow with stable distribution |
| Noise Level |
Low noise, vibration-free operation |
| Size / Dimensions |
Machine No. 2.5 – 7.1 |
| Motor |
Pure copper, dynamically balanced |
| Warranty |
12 months (extendable) |
| Color |
Stainless Steel Finish |
| Voltage |
220V / 380V, 50Hz |
| RPM |
1450 – 2900 RPM (depending on model size) |
Key Benefits
- Entire fan made of stainless steel for corrosion resistance
- Handles oil fumes and humid/corrosive gases with ease
- Large airflow capacity with stable, efficient operation
- Low noise and vibration-free performance
- Durable, long service life with easy maintenance
- Suitable for chemical plants, kitchens, and industrial ventilation
