10-20 Series High-Pressure Centrifugal Fan with Q345 Impeller, Galvanized Steel

The 10-20 series high-pressure centrifugal fan is professional industrial equipment specifically designed for high-pressure forced air supply and pneumatic conveying of bulk materials. It is widely used in metallurgy, petroleum, chemical engineering, grain processing, and building materials industries.

This fan is engineered to convey air and other non-corrosive, non-explosive, non-self-igniting gases free of viscous substances. The medium temperature generally does not exceed 50°C (maximum allowable temperature 80°C), and the concentration of dust and hard fine particles in the gas must not exceed 150 mg/m³. All models feature a single-inlet configuration and D-type direct coupling drive for reliable and efficient operation.

• High-Performance Q345 Impeller: Constructed from high-strength Q345 (16Mn) steel for excellent durability and pressure resistance. Features 12 pairs of evenly spaced long and short forward-curved blades welded between a four-arc-shaped shroud and flat disk. Integrated bladeless diffuser enhances pressure recovery efficiency. All impellers undergo strict static and dynamic balancing corrections.
• Galvanized Steel Casing: Integral spiral-shaped casing welded from high-quality galvanized steel sheets providing superior corrosion resistance and structural strength. Precision manufacturing ensures tight air sealing and minimal leakage.
• Optimized Convergent-Divergent Air Inlet: Integral convergent-divergent structure minimizes airflow resistance and improves inlet efficiency. Firmly fixed to the front cover plate with bolts for stable and reliable connection.
• Reliable D-Type Direct Coupling Drive: All models adopt D-type direct coupling transmission with mechanical efficiency of 0.98. Main shaft made of high-quality steel for long service life. Integral bearing housing with rolling bearings lubricated by total-loss system oil.
• Guaranteed Performance Standards: Performance points selected within range where total pressure efficiency exceeds 83%. Factory-tested performance ensures total pressure deviation does not exceed ±5% of design value. Motor capacity reserve factor of 1.15 ensures safe operation under varying load conditions.

• Rotation Direction: Clockwise ("Shun") / Counterclockwise ("Ni") (viewed from the front of the transmission unit)
• Air Outlet Angle: 0°, 90°, 180° (available for both rotation directions)
• Transmission Method: Standard D-type direct coupling drive for all models

• High-pressure forced ventilation in metallurgical plants and steel mills
• Gas conveying and process ventilation in petroleum and chemical industries
• Pneumatic conveying of grain, flour, and other bulk materials in food processing
• Material transportation and dust collection in building materials and cement industries
• High-pressure air supply for industrial furnaces and combustion systems
• General industrial pneumatic conveying systems for powders and granular materials

• 1* complete high-pressure centrifugal fan unit
• 1* matching three-phase asynchronous motor
• 1* set of coupling components
• 1* set of anchor bolts (4 pieces)
• Installation and operation manual

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

• Fan model number (e.g., No.8a, No.9)
• Required air flow rate (m³/h) and total pressure (Pa)
• Air outlet angle and rotation direction
• 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. is a distinguished national high-tech enterprise specializing in industrial blowers and centrifugal fan equipment. 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, supported by a seamless integrated customer service system.

Driven by an unwavering commitment to technological advancement, we collaborate with prestigious institutions including Central South University, Zhejiang University, Huazhong University of Science and Technology, and Changsha University of Science and Technology. Our dedicated R&D team employs state-of-the-art technologies such as 3D modeling, CFD flow field simulation, FEA finite element analysis, and CAD computer-aided design to continually push the frontiers of fan technology.

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. Our continuous innovation ensures better performance products, strict quality control guarantees reliability, prompt response protects customer rights, and extensive project experience enables us to meet diverse customer needs.

What is your main business?
We offer fan-related products, customized solutions on demand, and consulting services.

What are your strengths?
Our team consists of professionals in the wind turbine application industry. With 30 years of experience, we focus on product research and development and have rich expertise in manufacturing processes and production management.

How do I place an order?
Please contact our service department for ordering assistance.