4-72A Centrifugal Fan

Equipped with forward-curved impeller and direct-driven type A structure, the 4-72A centrifugal fan delivers large air volume and strong air delivery capacity. Featuring robust construction and cost-effectiveness, it offers moderate air pressure with outstanding airflow. Its noise level is relatively high, making it ideal for general industrial ventilation scenarios such as construction sites and workshops where high airflow is prioritized over quiet operation.

product details

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
3.2A	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
3.6A	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
4A	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
4.5A	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
5A	1450	2.2-4	3864-7728	790-502	220/380	50	3
5.6A	2900	22-2	10122-25736	4152-2330	380	50	30
5.6A	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
7.1A	960	3-6	8392-13581	689-512	380	50	4

CHARACTERISTICS

1.Large air volume: Adopts forward-curved steel impeller with precise dynamic balance, ensuring large airflow, long airsupply distance and stable air flow.

2.Moderate air pressure: Balanced pressure performance, suitable for ducted air supply, exhaust and direct ventilation.
3.Durable full- steel housing: Made of high-quality welded steel plate, resistant to corrosion and deformation, workssteadily under ambient temperature below 80°C.

4.Direct drive design: High transmission efficiency without belt loss, easy maintenance. Ful-copper motor withoverload protection supports long-term continuous operation.

5.Flexible installation: Air outlet angle adjustable from 0° to 255°, adaptable to various pipeline layouts.

6.Note: Relatively high noise (75-85dB), not recommended for noise-sensitive environments.

Applicable scenarios

1. Construction sites: Ventilation, dust removal and cooling for foundation pits, basements andtunnels.

2. Factory workshops & warehouses: Air exchange, odor exhaust, dust removal and heat dissipation.
3. Underground spaces: Ventilation and dehumidification for basements and parking lots.
4. Grain storage & agriculture: Ventilation, dehumidification and temperature control for granaries and greenhouses.

5. Public venues: Fresh air supply for malls, gymnasiums and exhibition halls.
6. Industrial supporting: Matched for dust removal, waste gas treatment and equipment coolingsystems.