Forced Draft Industrial Boiler Centrifugal Blower Fan High Air Flow

Double-suction industrial boiler fans have a large flow and are widely used in large factories. The induced draft fan adopts a double-sided short-term, double-support structure. The entire fan is composed of a rotor group, a casing, an air inlet, an air inlet box, an adjusting damper, a transmission group, a sliding bearing, a turning gear and a forced lubrication system.

Surface Processing
The surface of the fan shall be polished to remove any protuberances, welding spatters, burrs, sharp edges, scrap iron and greasy dirt before being finished with electrostatic grey 9006 epoxy coatings. The finished gloss level shall be greater than or equal to 70%. The surface shall be a level one without sags, cracks, cockles or detachment.
Nameplate
A permanently fixed aluminum nameplate shall clearly display the fan number, product model and serial number (a unique ID for each fan) so that the parts used can be traceable by customers.

Inlet
The inlet shall be designed in line with aerodynamics. It shall be streamlined for better airflow movement and efficiency, reducing turbulence and sound.
Belt Drive and Coupling Drive
The fan shaft shall be treated through hardening and tempering and finish turning processes up to the hardness level of HB250-280. Its maximum load shall be 35% more than the highest fan speed. The shaft shall be supported by two bearings with L10 rating service life of over 80000 hours. It shall be sealed and can be lubricated under normal operating temperatures. The pulley shall be of cast iron type and shall be sized for a minimum of 150% of the driving power. There shall be pulley and belt guard. Flexible coupling equipped with a guard shall be used. The factor of safety of power transmission and torsion shall meet the design requirements.
Motor
The motor shall be carefully matched to the fan load. It shall be IP54 rated with class F insulation. Ball bearing that can be lubricated shall be used. The motor and drive mechanism shall be isolated from the airstream to avoid grease or dirt accumulation.

Service:

With excellent quality and Reasonable price
Promise to delivery on time
Safe, reliable, economical and durable
Stable transmission, quiet operation
High heat-radiating efficiency, high carrying ability
Every product must be tested before sending

Centrifugal fan production process:

Case Show:

Henan Dajing Fan Technology Co., Ltd. is located in the hinterland city of the Central Plains and Pearl in the north of Henan Province-Xinxiang. Three thousand boulevards, choose one and follow from one; focus on one, great future! Since its inception, our company has been positioned to be the only quality standard based on customer satisfaction. Strictly implement various standards, focus on the field of ventilation, and committed to creating a good environment!

The company continuously exchanges with the Chinese general machinery industry department, accumulate rich technical experience, studies and absorbs the domestic and foreignadvanced manufacture technology of the same industry, uses the advanced CAD assistant design, develops and designs many kinds of low noise by oneself, new products with high wear resistance. The pursuit of science and technology and quality is endless.

Equipped with high-speed fiber laser cutting machine, CNC spinning machine, high-precision dynamic balancing machine, automatic on-site vibration balancer, comprehensive tester and other special equipment for fan manufacturing, and the introduction of international advanced 6 s management to ensure that every part of the excellence.

Our products are widely used in power plant, boiler, kiln, mine, metallurgy, petroleum, chemical industry, chemical fertilizer, cement, paper making, drying, breeding, environmental protection ,dust removal and so on.With anti-corrosion, explosion-proof, low noise, high temperature resistance, high wear resistant and other characteristics. In addition to standard models, we can also provide all kinds of non-standard models according to the needs of customers. The products are well-selling at home and abroad, and have been repeatedly praised.