The B4-72 centrifugal fan is an industrial ventilation and exhaust solution designed for high airflow efficiency and reliable operation. It features a robust casing, reinforced inlet flange, heavy-duty base, and backward-inclined impeller for stable performance under medium-pressure conditions. This fan is widely used in industrial boiler systems, metallurgical and chemical exhaust, waste incineration flue gas, workshop ventilation, and dust removal applications.
Explosion-Proof Safety Design
Equipped with an explosion-proof motor and aluminum alloy impeller, suitable for ventilation in flammable and explosive gas environments.
High Efficiency & Energy Saving
Optimized backward-curved airfoil impeller design ensures efficient airflow delivery with reduced energy consumption.
Stable Airflow & Reliable Performance
Aerodynamically designed impeller and smooth air inlet provide stable airflow, consistent pressure and reliable operation.
Low Vibration & Low Noise
Precision dynamic and static balancing ensures smooth operation, reducing vibration and operating noise.
Robust Structure & Durable Construction
Heavy-duty casing, high-quality shaft and reliable bearing components provide excellent structural strength and long service life.
Waste Incineration Plants
Suitable for flue gas extraction, high-temperature gas conveying and exhaust ventilation systems in waste incineration plants.
Chemical Industry
Used for process ventilation, corrosive-free gas conveying and exhaust gas extraction in chemical production facilities.
Non-Ferrous Metal Smelting
Ideal for hot flue gas extraction, furnace ventilation and process air supply in non-ferrous metal smelting plants.
Cement & Building Materials Industry
Applied in kiln exhaust systems, material drying, dust extraction and industrial ventilation processes.
Factory Workshop Ventilation
Provides air circulation, heat dissipation and general exhaust ventilation for industrial workshops and production facilities.
| Model | Speed(r/min) | Motor power(kw) | Total pressure(pa) | Airflow(m³/h) |
| 2.8A | 2900 | 1.5 | 606-994 | 1131-2356 |
| 3.2A | 2900 | 2.2 | 792-1300 | 1688-3517 |
| 3.6A | 1450 | 1.1 | 198-324 | 844-1758 |
| 5A | 2900 | 15 | 2019-3187 | 7728-15455 |
| 6A | 1450 | 4 | 724-1139 | 6677-13353 |
Q1: What are the main applications of the B4-72 Centrifugal Fan?
A: The B4-72 centrifugal fan is widely used in industrial ventilation, exhaust systems, dust removal and gas conveying. It is suitable for chemical plants, factories, warehouses and other industrial applications requiring reliable air circulation.
Q2: What are the key features of the B4-72 Centrifugal Fan?
A: The fan features high airflow capacity, stable performance, low vibration and low noise. Its robust structure, efficient impeller design and reliable operation make it suitable for continuous industrial ventilation applications.
Q3: Can the B4-72 Centrifugal Fan be customized according to customer requirements?
A: Yes. We can customize fan size, airflow, pressure, motor power, rotational speed, voltage, frequency, materials and installation configurations according to specific operating conditions and customer requirements.
Q4: Can the B4-72 fan handle corrosive or flammable gases?
A: The standard B4-72 model is designed for specific industrial ventilation applications. For corrosive or flammable gas conditions, special material selection, anti-corrosion treatment and explosion-proof motor configurations may be required. Please provide the gas composition and operating conditions for proper model selection.
Q5: What technical specifications can you provide?
A: We can provide detailed technical specifications, including airflow, total pressure, rotational speed, motor power, impeller diameter, product dimensions and performance curves to help customers select the appropriate fan model.
Q6: Do you support overseas exports and customized orders?
A: Yes. We support international customers with product selection, customized fan solutions, export packaging, transportation coordination and technical documentation to meet different project requirements.
