9-28 Series High-Pressure Centrifugal Fan with Ultra-High Flow, High-Temperature Resistance, and Double-Suction Configuration

The 9-28 series high-pressure centrifugal fan is a high-performance industrial ventilation equipment with industry-leading comprehensive performance, fully meeting the aerodynamic requirements of both the specialized FW-27 fan and the general-purpose 9-26 fan. It features high efficiency, low noise, flat performance curves, a wide flow regulation range, and an extensive high-efficiency operating zone.

This fan series is available in both single-suction and double-suction configurations:

• Single-suction: Flow range 2,200 ~ 300,000 m³/h, pressure range 3,430 ~ 19,700 Pa
• Double-suction: Maximum flow up to 600,000 m³/h

It is suitable for conveying air and non-corrosive, non-flammable gases free of viscous substances. The standard medium temperature does not exceed 80°C, with dust and hard particle content ≤150 mg/m³. For special applications (models No.16 and above), it can be modified with heat-resistant, high-strength materials to serve as a high-temperature fan for cement kiln pre-calcination processes and steel smelting.

• Equipped with 16 long blades and 16 short blades for optimal aerodynamic performance
• All impellers undergo strict static and dynamic balancing corrections
• Ensures smooth, vibration-free operation with minimal mechanical loss

• Standard casing welded from high-quality steel plates into an integral spiral shape
• High-temperature versions use heat-resistant materials according to operating temperature
• Modular split casing design available for easy installation and maintenance

• Integrated convergent streamlined structure to minimize inlet resistance
• Firmly fixed to the front cover plate with bolts for airtight connection
• Ensures uniform airflow distribution into the impeller

• Type A (Direct Drive): For models No.4 ~ 6.3, compact design with high transmission efficiency
• Type D (Coupling Drive): For models No.7.1 ~ 16, rigid coupling connection for stable operation
• Type F (Bearing Housing Drive): For large models, suitable for high-temperature and heavy-duty applications
• Two lubrication systems: Grease lubrication for rolling bearings, thin oil lubrication for sliding bearings
• Main shaft made of high-quality steel (or heat-resistant steel for high-temperature applications)

• Flat performance curve provides stable operation over a wide flow range
• Broad high-efficiency zone reduces energy consumption
• Advanced aerodynamic design significantly lowers operational noise
• Comprehensive performance leads similar products in domestic and international markets

• Designed for large-scale industrial applications and high-temperature environments
• Flow range up to 600,000 m³/h (double-suction)
• Maximum pressure up to 19,700 Pa
• Motor power range up to 1,600 kW (6KV high-voltage motors available)

• Suction Type: Single-suction / Double-suction
• Rotation Direction:
  • Clockwise (CW): Impeller rotates clockwise when viewed from the motor end
  • Counterclockwise (CCW): Impeller rotates counterclockwise when viewed from the motor end
• Air Outlet Angle: 0°, 45°, 90°, 135°, 180°, 225° (6 angles available for both rotation directions)
• Transmission Method: Type A (Direct Drive) / Type D (Coupling Drive) / Type F (Bearing Housing Drive)
• Optional Accessories: Adjustable inlet dampers for precise flow control
• Customization: High-temperature versions with heat-resistant materials (impeller, shaft, bearings)

• Forced air supply for forging furnaces and smelting furnaces
• High-pressure forced ventilation in industrial plants and workshops
• Pneumatic conveying of granular and powdery materials
• Dust collection systems requiring high pressure
• General industrial high-pressure air supply and exhaust

• Pre-calcination process air supply in cement kilns
• High-temperature flue gas extraction in steel smelting
• Industrial furnace exhaust systems
• High-temperature gas conveying in chemical and metallurgical industries

• Type A Drive: 1* complete fan unit, 1* matching three-phase asynchronous motor, 4* anchor bolts, installation and operation manual
• Type D Drive: 1* complete fan unit, 1* matching three-phase asynchronous motor, 1* set of coupling components, 8* anchor bolts, installation and operation manual
• Type F Drive: 1* complete fan unit, 1* matching motor (including high-voltage options), 1* set of transmission components, 1* intake box, anchor bolts, installation and operation manual
• Optional: Adjustable inlet dampers, high-temperature resistant components, special coatings

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

1. Fan model number and transmission type (e.g., 9-28 No.8D)
2. Required rotational speed (r/min)
3. Required air flow rate (m³/h) and total pressure (Pa)
4. Air outlet angle and rotation direction
5. Motor model, rated power (kW) and voltage level
6. Whether adjustable dampers are required

• For high-temperature applications, please specify the operating temperature, and we will jointly determine the appropriate materials, bearing types and related technical parameters
• For models larger than No.16, installation dimensions will be provided upon request
• Customized solutions are available for special working conditions and performance requirements

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.

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.

We offer fan-related products, as well as customized solutions on demand, and are always available for consulting services.

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.

Please contact the service department