The 5-90 series centrifugal fan is a high-performance industrial ventilation equipment distinguished by its high efficiency, moderate pressure, extremely large flow rate, and low noise level. It is specifically designed for factories and large buildings that require substantial air volume for ventilation and air exchange.
This fan can be used for both air supply and exhaust applications. It is engineered to convey air and other non-flammable, non-explosive, non-tangling, non-toxic, and non-corrosive gases to steel materials. The conveyed gas must not contain viscous substances, with dust and hard particle content ≤150 mg/m³, and a maximum gas temperature of 80℃. All models feature a C-type belt drive configuration for flexible speed adjustment and reliable operation.

• High-Efficiency Backward-Curved Impeller: Equipped with 12 backward-curved arc-shaped thin-plate blades welded between a curved front disc and flat rear disc. Optimized blade profile ensures excellent aerodynamic performance and high operating efficiency. Precision manufacturing guarantees smooth operation and minimal vibration.
• Reliable Transmission Assembly: Main shaft made of high-quality steel for long service life and high load capacity. Integral bearing housing structure for enhanced stability and easy maintenance. C-type belt drive system allows flexible speed adjustment to meet different airflow requirements.
• Optimized Curved Air Inlet: Integral structure with a curved cross-section parallel to the axial direction. Minimizes airflow resistance and ensures smooth air entry into the impeller. Firmly fixed to the fan side with bolts for a secure and airtight connection.
• Low Noise Operation: Advanced aerodynamic design reduces aerodynamic noise significantly. Balanced rotating components minimize mechanical noise. Ideal for noise-sensitive environments requiring large air volumes.
• Wide Performance Range: Covers a broad range of flow rates and pressures to meet diverse application needs. Multiple speed options available for precise performance matching.

• General ventilation and air exchange in large industrial factories and workshops
• Ventilation systems for warehouses, logistics centers and storage facilities
• Air circulation in large commercial buildings, shopping malls and supermarkets
• Ventilation for gymnasiums, exhibition halls and other public facilities
• Underground parking garage ventilation and smoke exhaust systems
• Air supply and exhaust for production lines requiring large air volumes
• General ventilation for hospitals, schools and office buildings

• 1* complete centrifugal fan unit
• 1* matching three-phase asynchronous motor
• 1* set of motor pulleys and V-belts
• 1* set of motor slide rails
• 1* set of anchor bolts
• Installation and operation manual

When placing an order, please clearly specify the following information:

• Fan model number (e.g., No.5C, No.8C)
• Required spindle speed (r/min)
• Required air flow rate (m³/h) and total pressure (Pa)
• Motor model, rated power (kW) and rated speed (r/min)
• Any special requirements for materials, coatings or accessories

Established in 1999, Hunan Xinhongyuan Hi-Tech Co., Ltd. illuminates the industrial landscape with its pioneering spirit and profound expertise in industrial blowers and centrifugal fan equipment. As a distinguished national high-tech enterprise, we masterfully navigate the entire spectrum of research and development, production, sales, and service. Our extensive product range spans axial fans, centrifugal fans, and silent fans, all supported by a seamless and integrated customer service system that fuses R&D, production, and sales into a harmonious whole.
Driven by an unwavering commitment to technological advancement, we embody the 'brand enterprise' philosophy. Our collaborative ventures with illustrious institutions, including Central South University, Zhejiang University, Huazhong University of Science and Technology, and Changsha University of Science and Technology, foster ongoing technical exchange and cooperation. Together, we are empowered to continually push the frontiers of fluid dynamics and engineering excellence.
Our steadfast dedication to groundbreaking independent research and development has led to the formation of a top-tier R&D team. By employing state-of-the-art technologies such as 3D modeling, CFD flow field simulation, FEA finite element analysis, and CAD computer-aided design, we consistently redefine the parameters of fan technology. By seamlessly integrating these cutting-edge methodologies with our vast practical expertise, we persistently innovate and elevate our product offerings, establishing new standards for performance and efficiency in the industry.

1. What are your company's competitive advantages in the industry?
We have advanced technology, high-quality products, a complete after-sales service system, and rich industry experience. In terms of technology, we continue to innovate and continuously introduce products with better performance. In terms of product quality, we strictly control every link to ensure the reliability and stability of the products. In terms of after-sales service, we respond promptly and comprehensively protect the rights and interests of customers. Our rich project experience enables us to quickly and accurately meet the diverse needs of different customers, and has established a good reputation in the industry.
2. What is your main business?
We offer fan-related products, as well as customized solutions on demand, and are always available for consulting services.
3. What are your strengths?
Our team members are professionals in the wind turbine application industry. The company was established for 30 years, focusing on product research and development, and has rich experience in manufacturing process and production management.
4. How do I place an order?
Please contact the service department.