300mm 380V 750W Bf Series Centrifugal Cabinet Fan

Our strong technical force strongly guarantees the steady improvement of product quality, and our worldwide sales network promotes the strong demand for our Anti Corrosion Centrifugal Fan, Axial Flow Fan, Centrifugal Industrial Extractor Fan. Our company through the implementation of integrated management and brand strategy, our sales business covers the world. Customer satisfaction; we bear in mind that every bit of profit and every salary comes from customers. All we do is to strive to satisfy our customers. We realize that the fundamental condition of developing our business is to win customers' satisfaction through the pursuit of quality, reasonable prices, strict delivery dates and considerate service. Honesty and integrity is our eternal theme and high quality service is our unchanging purpose. Once we hold our hand, we will always be friends. Let's go hand in hand for a better tomorrow. In line with the service tenet of 'integrity management and common development', we meet customer needs to the greatest extent. We sincerely consider from the perspective of customers, listen to their needs, and provide optimized solutions that customers really need.

Product introduction of 4-73 boiler fan

Performance characteristics of centrifugal fan

Centrifugal fan is essentially a variable flow constant pressure device. When the rotating speed is constant, the pressure flow theoretical curve of centrifugal fan should be a straight line The actual characteristic curve is curved due to internal loss. The pressure generated in the centrifugal fan is greatly affected by the change of inlet temperature or density. For a given intake air volume, the pressure generated at the highest intake air temperature (lowest air density) is the lowest For a given pressure and flow characteristic curve, there is a power and flow characteristic curve When the blower operates at a constant speed, the required power increases with the decrease of intake air temperature for a given flow

Fault maintenance of centrifugal fan

The wear of the transmission part of centrifugal fan is a common equipment problem, including the wear of the bearing position of exhaust fan, bearing chamber, blower shaft and so on. For the above faults of centrifugal fan, the traditional maintenance methods include surfacing, thermal spraying, brush crossing, etc., but they all have some disadvantages: the thermal stress caused by repair welding high temperature can not be completely eliminated, which is easy to cause material damage and lead to bending or fracture of components; Brush plating is limited by the thickness of the coating and is easy to peel off, and the above two methods use metal to repair the metal, which can not change the "hard to hard" cooperation relationship. Under the comprehensive action of various forces, it will still cause the re wear of the rubber coated roller. In view of the above problems, contemporary western countries mostly adopt the repair method of polymer composite materials, while the American fushilan technology system is widely used. It has comprehensive properties such as super adhesion and excellent compressive strength, which can be disassembled and machined free. There is no influence of repair welding thermal stress, and the repair thickness is not limited. At the same time, the metal materials of the product do not have the concession, which can absorb the impact vibration of the equipment and avoid the possibility of re wear. It also gradually replaces the traditional methods in the domestic application of fault repair of centrifugal fans.

Second, product features

1.Y4-73 boiler ventilation and induced draft fan can work stably under higher medium temperature, and can output great gas flow with low noise while meeting pressure requirements.

2.Blade placement angle is optimized, more resistant to wear and longer service life.

3.The pressure and flow rate of the fan can be flexibly adjusted during operation by using the adjustment door. Optional frequency conversion motor can also be used to adjust the pressure and flow rate of the fan by changing the speed.

4.For different working temperature and working speed, choose to use high strength carbon steel, low alloy steel, high temperature resistant alloy steel, high temperature resistant high strength alloy steel, so that the impeller and main shaft still maintain reliable strength under high temperature.

5.Impeller nominal diameter of 1400mm or less operating at room temperature fan system, no additional configuration of bearing cooling device, reducing the user's investment and maintenance workload.

6.The impeller is annealed to eliminate the structural internal stress generated during welding, ensuring that the impeller will not undergo shape creep and produce cracks.

7.The impeller's welding seam and main shaft are ultrasonically inspected to ensure that there are no welding defects and material defects to guarantee the strength. The impeller is corrected by high standard dynamic balance to ensure stable operation of the fan.

8.A complete range of fan accessories are available for users to choose the configuration.

FAQ

1. Can we get some samples? Any charges?                                                              

Yes, free existing labels, you need to pay shipping cost.

2. How can we get a quote?

Contact us with specification: such as material, design, size, shape, color, quantity,  surface finishing, etc.

3. Can you help with the design?

Yes, Simply design free, special design need to pay.

4. What's the trade term and payment term?Amount less than $1000, 100% paid before production, more than $1000 can be negotiated!

T/T, Western Union, PAYPAL etc.

5. May I have new sample made with my design for confirmation?

Yes. Sample charge means set up charge for production line, little quantity  we suggest that straight for production. Large quantity we suggest that sample   first, and sample fee can be refund.

6. What parameters need to be provided in the design of industrial centrifugal fan?

Air volume, total pressure or static pressure, air inlet temperature, local voltage and frequency, altitude, etc. If there are flammable and explosive gases in the medium, or the dust content is large, please also inform the designer.

7. How about your company's pre-sales and after-sales service?

Before cooperation, we have a professional technical team to help you formulate technical schemes according to your working conditions to ensure the efficient operation of centrifugal fans. After sales service, we will provide 12-month maintenance service and lifelong tracking service.

Company advantage

1.Suppliers of professional fans, centrifugal fans, axial flow fans and livestock fans: there are 13 series products, with a total of hundreds of varieties. The technical performance of the products has reached the industry-leading level and won the trust of customers

2.Low cost: We have a professional team with technical knowledge and managerial experience. Our company has advanced equipments for manufacturing. By virtue of perfect managerial system and excellent quality, so we can always keep the price competitive and reasonable.

3.Richer experience: we were founded in 1997 and have been exported to more than 40 countries and regions, such as Russia, Australia, the United States, the United Kingdom, Germany, Ukraine, Iran, Romania, Hungary, Mexico, Brazil, Chile, Canada, Spain, Colombia, etc. we can provide customers with high-quality services.

4.Small profits: Our company's strength, re-credit, keep the contract, to ensure product quality, has won the trust of customers under the principles of various categories and low price. Welcome old and new customers from home and abroad call or come to our company for consultations and negotiations.Consecutive sales increasement of 20years.

5.Best service: customer satisfaction is always the priority concern of dehongli machinery. We are eager to solve any problems. We will answer all questions, help when we are busy, and respond to all requests.

We know that only by strict selection of materials, strict process system and starting from the smallest details can we gradually improve the finished product rate of our 300mm 380V 750W Bf Series Centrifugal Cabinet Fan. We face both the international and domestic markets, and continue to strengthen the overall strength and market competitiveness of the company. It is really our hope to market, by joint efforts, each trade and friendship to our mutual advantage.