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The 4-72-3.5A Centrifugal Fan is designed to handle large volumes of relatively clean air at low to moderate pressures in applications such as filtration and drying systems,ventilate and exhaust systems, air pollution control (clean side of dust collectors) and other industrial processes.
The 4-72-3.5A is constructed with an airfoil impeller and incorporates hollow airfoil blades for higher efficiencies and better sound quality. All housings are reinforced with rigid bracing to increase structural integrity. The support angles are intermittently welded and caulked between welds to prevent bleed-through corrosion.
The centrifugal fans are a type of fan that uses centrifugal force to create a pressure increase and a volume flow.
This type consists of a fan wheel that rotates in a snail-shaped cover.
The flow enters the fan through an inlet placed axially with the fan wheel shaft and motor, and is then thrown out radially with the help of the force from the fan wheel.
Unlike axial fans, the motor is not in the volume flow of radial fans.
To change the performance and characteristics of centrifugal fans, different designs are used on the fan wheel.
The strength of the centrifugal fan is its versatility. A centrifugal fan can be designed to transport a variety of volume flows at a wide range of pressures.
At higher flows and relatively low pressures, an axial fan may be a better option.
Centrifugal fans are available in single and double suction versions.
Centrifugal fans can be connected in series in two or more stages, this gives acceptable sound levels even at very high pressures.
A centrifugal fan usually has a higher overall efficiency than an axial fan.
The flow of centrifugal fans is mainly regulated with speed control, it is also not unusual for centrifugal fans to run towards a fixed operating point.
As an alternative, the flow can also be regulated with dampers that have variable opening. A third option is through a guide rail device that creates a co-rotation of the volume flow before the fan.To choose the right centrifugal fan, you should start from the area of use, how the fan is to be controlled and whether there are any special requirements.
We know centrifugal fans.
Tailor-made centrifugal fans adapted to your particular application.
We handle tough environments and deliver on our promises.
The range of our centrifugal fans is adapted to meet most combinations of volume flow and pressure using direct-driven fans.
In addition to standard fans, we also manufacture a large number of special designs, according to your needs.
Contact us and we will help you with your centrifugal fan needs.
| Item NO. |
4-72-3.5A |
| Air Performance |
3400 m3/h |
| Static Pressure |
1480 Pa |
| Efficiency |
2.2 KW |
| Rotation Rate |
2900rpm |
| Working Humidiry |
<90% |
| Size |
25.6''* 25.6''* 25'' |
| Weight |
50KG |
| Pattern |
Airflow(m³/h) |
Static pressure(Pa) |
rotation(r/min) |
efficient(kw) |
| 2.8A |
1810 |
843 |
2900 |
1.5 |
| 3.2A |
1385 |
264 |
1450 |
1.1 |
| 3.6A |
1990 |
372 |
1450 |
1.1 |
| 4 |
2740 |
460 |
1450 |
1.1 |
| 5A |
10850 |
2971 |
2900 |
15 |
The Application Scenarios
- This centrifugal fans are designed for a wide range of air volumes and pressures. With backward inclined, backward curved, backward inclined airfoil, radial and forward curved impeller types, centrifugal fans offer the flexibility to match the performance and application at the highest efficiency. Most models are available in single-wide or double-wide configurations that allow for even higher volumes of air.
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- The construction allows for the maximum compactness of fans, excellent motor cooling, low noise levels and high energy efficiency.
- The fans are designed and produced in line with clients' specific requirements and comply with all provisions of current regulations and directives concerning the environmental design of fans.
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- Technologies
- We direct major investments into key technologies to ensure energy efficiency, robustness and especially the consistent qualities of the fans.
- Modern technologies of winding, forming and impregnating stator windings ensure the fans' long life. And the technologies of the final assembly of fans and the mechanical balancing of the rotor stack with the propeller of the fan give excellent vibro-acoustic characteristics.
- All key machining operations on components and sub-assemblies of fans are quality-controlled. In the case of the most complex fans with integrated electronic drives, the process parameters together with the testing parameters.
- If a client specially wishes, the fan's appropriateness can also be confirmed by measurements of the aerodynamic and vibro-sound characteristics and its functionality by testing its thermal sustainability.
- Areas Of Product Application
A centrifugal fan is a versatile fan that is suitable in many different systems and can, for example, be used as process fans in industry or as a material conveyor in sawmills.It is designed to supply and exhaust air in hospitals, hotels, schools, fume hoods and similar environments.
Centrifugal fans can be adapted to most operating situations, everything from corrosive gases, high pressures, high temperatures, gas mixtures to material transport fans.These units are used in the most complex energy efficient heating, ventilation, air conditioning and cooling systems. With its competencies in planning, sample production and lab testing, the application development team ensures a quick response and the adapted construction and functioning of centrifugal fans in line with clients' needs or specifications.
Depending on requirements, the design of the centrifugal fans is completely adapted to the customer's needs.Correctly dimensioned, a centrifugal fan provides problem-free operation and high performance over many years.
Trust The Professional Industry CDS Company
Uncompromising product quality.
Outstanding delivery dependability.
Dedication to research and innovation.
CDS company designs & manufactures Industrial and Commercial ventilation equipment worldwide.
For 20 years,CDS company has been delivering high-performance, high-quality products, at the lowest possible cost,these values have made CDS company one of the most trusted manufacturers of air-moving equipment and ventilation system, and why engineers and designers continue to depend on our durable and efficient products.
Products include Roof Axial Fans, Wall Axial Fans, Duct Axial Fans, all kinds of Centrifugal Fans,Dust filter equipments,Air volume measurement device,safe valve,control valve,gate valve,exhaust valve,blast door and so on.In a word,we have the equipments of the whole ventilation system.
Our long history and legacy brands and products are part of the reason our customers return, whether for custom fans, replacement components, or to retrofit a competitors' equipment to increase productions performance. Our investment in expanding our facilities and product lines, education for our employees and service technicians, and focus on customer satisfaction gives us the competitive edge.
Manufacturing premium-quality, expert team,professional service has allowed CDS company to become an excellent supplier in the industrial of China. CDS company is able to flexible, customized solutions that meet the specific requirements for unique applications. Our heavy industrial product line and consistent productions development has helped us to expand to markets such as boilers, locomotive, nuclear and mining. Our extensive investment in technology and people allows us to process repair, upgrades and rebuilds of any of our competitors' equipment.
The CDS company carries one of the most complete product lines in the ventilation system industry. From axial fans to centrifugal fans,all kinds of valves,dust filter equipment,wind speed device, rebuild or replacement jobs, we are constantly adding to our product portfolio and increasing our capabilities.
Our engineering team is constantly innovating, designing new products and improving existing ones. All manufactured products are constantly reviewed to increase quality and reliability while also reducing costs.
We're also lucky to have a close-knit team with a supportive work environment and a family-centric culture, which we believe helps foster innovation, enables employees to take ownership in our success, and ultimately contributes to a better product. This attitude, which pervades our entire company, is on display whenever we interact with our customers.
Because our productions outperform and outlast, we have many repeat customers and product deployments in China. Cooperate with CDS company and you'll never have any problem in ventilation system!
We at CDS company focuses on:
- High operational reliability
- High efficiency
- Low operating costs
- Long lifespans
For special requirements or applications, we can tailor solutions and develop fans that suit you.
When it's time to choose the best possible air-moving solution for your project, please contact to us.
Expert Team & Global Service
FAQ
1.Are your factory or trading company? We're manufacturer with history 30 years of ventilation system,our factory is more than 10,000m².
2.What's your main productions?Our productions are all the equipments of ventilation systems,contain gate valve,butterfly valve,exhaust valve,
airtight valve,axial fan,centrifugal fan,mixed flow fan,electric dual-use pedal fan,dust fliter,air volume measuring device and so on.
3.What's the MOQ?The quantity is just for reference.Usually if we have stock,we have no request on MOQ.Please contact to us.
And please understand that the price may be different related to our stock available and your order QTY.Favorable
will be different based on your detail inquiry.
4.Can we use our own logo?Yes,OEM is obsolutely supported.But for some items,we have to add some costs if your order not reach our free OEM QTY.
5.How do you ensure the product quality of fittings?The equipment's from Dingsheng company, are widely used in China. And we will test and check the quality of each product before delivery.
6. Can I get samples before ordering? Yes, samples can be offered.
7. Shipping If your order is not big enough,door to door service is the best choice via UPS,FEDEX,DHL,EMS.For big quantity,by air or by sea through your forwarder is one normal way,we can also provide cost-effective forwarder for your reference.
8. Where is your company located, Can I visit there?Our manufacturing located in Jinhua,Zhejiang in south of China. Welcome to visit our factory face to face for visit.
Welcome to contact us!
You are always welcome to contact us.
Regardless of whether it is a big or small question, our knowledgeable employees will answer your questions via phone or e-mail.
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