Centrifugal blower fan — voltage all can be custom as requirement, blade material FRP. The complete factory specification follows. Quantity and destination market determine the final price — tell us both for a firm quote.
The 4-72 centrifugal blower is the workhorse pattern for large-volume industrial exhaust in Chinese plant, and this A/C variant uses backward curved FRP blades on a belt drive. Backward curvature gives a non-overloading power characteristic, so the motor cannot be driven past its rating if system resistance drops — a real risk with forward-curved impellers. Belt drive lets the duty point be re-tuned by changing pulleys instead of replacing the fan.
Key Features of This Centrifugal Blower Fan
- Model Number: 4-72 A, 4-72 C
- Voltage: all can be custom as requirement
- Blade Material: FRP
- Warranty: 1 Year
- Place Of Origin: Shandong, China
- Single Package Size: 90X90X90 cm
Technical Specifications
| Blade Material | FRP |
|---|---|
| Mounting | standing type |
| Customized Support | OEM, ODM, OBM |
| After-Sales Service Provided | Online support |
| Warranty | 1 Year |
| Place Of Origin | Shandong, China |
| Model Number | 4-72 A, 4-72 C |
| Brand Name | Damuyuan |
| Voltage | all can be custom as requirement |
| Product Name | centrifugal fan |
| Selling Units | Single item |
| Single Package Size | 90X90X90 cm |
| Single Gross Weight | 100.000 kg |
4-72 type centrifugal fan,motor adopts the design of high temperature resistant,possessing the advantages of resistance to high temperature and high humidity:
Mainly used for the transportation of air and other non spontaneous combustion of harmless, non corrosive gas:Conveying gas temperature should not be higher than 380.
The fan has the characteristics of good aerodynamic performance,stable operation,small vibration,high efficiency,long service life,etc.
There are direct coupling(A type),direct coupling heat insulation(G type),belt drive(C type) three kinds of structure.
Features:
1.High standard quality control-Testing video /Testing report available
3.Materials testing available
4.Famous motor brand
（Simens/ABB/TECO/WEG）
|
Type
|
Rotate speed(r/min)
|
Air volume(m3/h)
|
Air pressure(pa)
|
Power(kw)
|
|
3C
|
1450
|
2600-3860
|
478-500
|
0.75
|
|
3.8C
|
1450
|
4000-5200
|
725-780
|
1.5
|
|
4.5C
|
1631
|
6000-7300
|
890-980
|
2.2
|
|
5C
|
1450
|
7200-10500
|
996-1030
|
2.2
|
|
1595
|
8500-12075
|
1137-1207
|
3.7
|
|
|
6C
|
1450
|
13500-14800
|
1022-1100
|
3.7
|
|
1571
|
15120-16800
|
1200-1350
|
5.5
|
|
|
6.5C
|
1450
|
16500-17800
|
1185-1250
|
5.5
|
|
1562
|
18600-19300
|
1220-1300
|
7.5
|
|
|
7C
|
1450
|
18800-21000
|
1398-1430
|
7.5
|
|
1554
|
20300-25000
|
1418-1500
|
11
|
|
|
7.5C
|
1450
|
22200-25630
|
1496-1520
|
11
|
|
1657
|
26300-28900
|
1580-1700
|
15
|
|
|
8.3C
|
1365
|
28080-30000
|
1586-1658
|
15
|
|
1450
|
31080-33600
|
1689-1780
|
18.5
|
|
|
9C
|
1365
|
33960-36000
|
1830-1880
|
18.5
|
|
1450
|
37260-39360
|
1878-1956
|
22
|
|
|
10C
|
1208
|
40800-43800
|
1910-2050
|
22
|
|
1329
|
45180-48000
|
2000-2230
|
30
|
|
|
11C
|
1227
|
51000-56800
|
2120-2450
|
30
|
|
1338
|
61000-68800
|
2310-2588
|
37
|
|
|
12C
|
1160
|
71060-75580
|
2500-2700
|
45
|
|
1257
|
78860-85180
|
2680-2880
|
55
|
We are based in Shandong, China, start from 2020,sell to South America(30.00%),Southeast Asia(30.00%),Mid East(10.00%),North America(10.00%),Northern Europe(10.00%),Southern Europe(5.00%),Africa(5.00%),Western Europe(5.00%). There are total about 51-10 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;Always final Inspection before shipment;
3.what can you buy from us?
axial flow fan,upblast fan,ventilation fan,louver,fire damper
4. why should you buy from us not from other suppliers?
1. Good quality, Competitive price, Fast delivery.
2. We have a R&D team who have average 10 years experience in designing and producing fans, we can OEM different kinds of products according to your requirement, in order to produce the products more suitable to your market !
3. We have a lot of customers from overseas. A lot of our customers has established long term business relationship with us.
4. All the products have 1 year warranty. All products are conducted strict QC and inspection before shipping.
5. If you have any problems or suggestions about our products or service, you can contact me or our sales manager whenever you want. We will give you a satisfying reply.
Frequently Asked Questions
What is the minimum order quantity for this centrifugal blower fan?
Minimum order quantity is set per configuration and trial quantities can usually be arranged. Send your target volume with an enquiry and a quotation will follow with current lead times.
What warranty covers this centrifugal blower fan?
A 1 Year warranty is supplied as standard. Spare parts and technical support remain available beyond the warranty period.
Can it be built for my local voltage?
The standard specification is all can be custom as requirement. Alternative voltage and frequency builds are available when confirmed at order stage.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying volumes. Supply your artwork and technical requirements with the enquiry.
How long is production and delivery?
Stocked configurations normally ship in 7-15 days. Customised or high-volume orders are typically produced in 25-35 days, confirmed at order.
About the Manufacturer
This centrifugal blower fan is produced by Qingdao Damuyuan Machinery Manufacturing Co., Ltd.. Browse the full Qingdao Damuyuan Machinery Manufacturing Co., Ltd. range on HVACR Nexus.
See more in Blowers on HVACR Nexus.
