50" Fiberglass 6 SUS Blades Ventilation Fan

Qingdao Puhui launches 50-inch FRP fan: exclusive patented technology leads industrial ventilation innovation
Qingdao, July 21, 2025 - Qingdao Puhui Fan Co., Ltd., which continues to deepen its roots in the field of industrial ventilation, announced today that its independently developed 50-inch large FRP fan has officially been launched on the market. With its exclusive patented structural design, innovative 6-leaf stainless steel fan configuration and excellent energy-saving performance, this product provides a new, efficient and reliable solution for highly corrosive and high-volume demand industries such as chemical, electroplating, sewage treatment, and metallurgy.

Exclusive patented technology: creating core competitive advantages
As the core innovation of Qingdao Puhui, the overall structural design of this 50-inch fan has been authorized by the National Invention Patent (patent number: specific patent number to be supplemented). This patented technology is not limited to a single link, but systematically optimizes the key structure of the fan, the airflow organization path, and the connection method of key components. The patented design significantly improves the structural strength and operating stability of the fan, effectively reduces vibration and noise, and optimizes the internal flow field, laying a solid physical foundation for the fan to achieve the dual goals of "large air volume" and "high energy saving". Wang Gong, technical director of Qingdao Puhui, emphasized: "This patent is the result of Puhui's many years of technological accumulation. It solves a series of key challenges for large industrial fans to operate efficiently, quietly and for a long time in harsh environments."

6-leaf stainless steel fan blades: precise balance of performance and durability
The material selection and design of the fan blades, the core component of the fan, directly determine its performance. Qingdao Puhui abandoned tradition and innovatively equipped this 50-inch fan with 6 precision-made high-quality stainless steel fan blades. This design achieves a perfect balance of multiple advantages:

Excellent aerodynamic efficiency: The 6-blade design has been repeatedly optimized by CFD (computational fluid dynamics), perfectly matching the fan volute and patented flow channel, effectively reducing eddy loss and significantly improving gas delivery efficiency, which is the core guarantee for achieving large air volume.

Extraordinary structural strength and fatigue resistance: Stainless steel gives the fan blades strength, rigidity and fatigue resistance far beyond ordinary materials, ensuring that it maintains excellent shape stability and dynamic balance accuracy when running at high speed, bearing huge centrifugal force and airflow impact, running quieter, smoother and longer life.

Excellent environmental adaptability: Stainless steel's excellent corrosion resistance and wear resistance enable the fan to easily cope with harsh working environments with high corrosion, high humidity and particulate matter such as chemical waste gas, coastal salt spray, electroplating acid mist, and wet smelting flue gas, greatly reducing maintenance frequency and cost.

Large air volume and high energy saving: You can have your cake and eat it too
Relying on the exclusive patented structure and high-efficiency 6-page stainless steel fan blades, Qingdao Puhui 50-inch fiberglass fan has achieved a qualitative leap in performance:

Surging air volume output: The optimized design minimizes internal resistance loss and significantly improves the air delivery capacity under unit energy consumption, meeting the urgent needs of large workshops, factories, processing facilities, etc. for ultra-large air volume ventilation, process exhaust or waste gas collection.

Excellent energy-saving characteristics: High efficiency means less energy waste. Actual measured data shows that under the same working conditions, this fan can significantly reduce operating energy consumption compared with traditional similar products, bringing considerable long-term electricity bill savings to enterprises, with outstanding economic benefits.

Reliable and environmentally friendly operation: The main body of FRP itself has excellent anti-corrosion, insulation, light weight and high strength characteristics. Combined with the durability of stainless steel fan blades, the whole machine operates reliably and stably, with low maintenance costs and long service life. At the same time, the high efficiency and energy-saving characteristics also mean lower carbon emissions, which is in line with the trend of green manufacturing.

Born for harsh environments, with a wide range of application scenarios
Qingdao Puhui's 50-inch fan is designed to cope with challenging environments and is an ideal choice for the following fields:

Chemical and pharmaceutical industries: Corrosive gas emissions, strong ventilation of workshops.

Electroplating and surface treatment: Strong extraction and collection of acid mist and alkali mist.

Sewage treatment plant: Deodorization of aeration tanks and sludge treatment workshops and large space ventilation.

Metallurgy and casting: high-temperature flue gas, dust emission and workshop cooling.

Food processing: ventilation in humid environments containing corrosive detergent vapor.

Large warehouses and factories: spaces that require large air volume ventilation.

About Qingdao Puhui Fan Co., Ltd.
Qingdao Puhui Fan Co., Ltd. is a leading professional fan R&D and manufacturer in China. It has long been focusing on the technical innovation and quality improvement of a series of products such as FRP anti-corrosion fans, stainless steel fans, centrifugal fans, and axial flow fans. The company has a complete production system, strict quality control process and a strong R&D team, and is committed to providing customers with efficient, energy-saving, reliable and environmentally friendly wind system solutions. Puhui Fan is based on the concept of "craftsmanship, clean wind and benefiting people". Its products are widely used in various fields of the national economy and have won wide trust and praise from the market.

The 50-inch exclusive patented FRP fan launched this time is another concentrated display of Qingdao Puhui's technological innovation strength, marking an important breakthrough in the field of large industrial fans. This product will surely create core value for more industrial customers with its excellent performance, significant energy-saving benefits and ultra-long service life.