In modern industrial operations, moving corrosive, humid, and hazardous exhaust streams is a major operational challenge. Traditional metallic blowers—even those fabricated from high-grade stainless steel or specialty alloys—frequently suffer from galvanic corrosion, chemical degradation, and fatigue when exposed to acid mists, alkali fumes, and severe humidity. This creates premature equipment failures, unscheduled downtime, and safety hazards.
Fiberglass Reinforced Plastic (FRP) centrifugal blowers offer a superior solution. Engineered with high-strength composite materials, these fans offer complete chemical resistance throughout their lifetime. As a globally recognized supplier with over 50 years of experience, Shandong Zhangqiu Blower Co., Ltd. produces advanced FRP centrifugal blowers designed to withstand aggressive gaseous media while maintaining high aerodynamic efficiency.
The design, testing, and production of FRP ventilation machinery are evolving to meet the demands of modern chemical processing, waste-to-energy, and environmental controls.
Modern FRP blowers leverage specialized vinyl ester resins, brominated flame-retardant composites, and bisphenol-A chemistry. These systems offer mechanical robustness up to 120°C and resistance to wet chlorine, sulfuric acid, and nitric acid fumes.
By using Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA), our engineers design impellers with backward-curved blades that optimize static pressure and minimize turbulence. This helps lower energy consumption in continuous-duty applications.
The future of corrosive air handling is predictive. We integrate vibration sensors, temperature probes, and smart diagnostic hubs into our blower setups. This allows operators to monitor bearing temperatures and housing structural integrity remotely.
In chemical synthesis, reactors and mixing vessels vent aggressive chemical vapors. Our FRP centrifugal blowers safely pull these vapors through scrubber columns without degrading the housing structure, preventing hazardous gas leaks.
Wastewater facilities generate hydrogen sulfide (H2S) and ammonia (NH3) gases, which are highly corrosive. FRP blowers are widely used to transport these foul gases to biological scrubbers or carbon filters, ensuring long equipment life.
The wet etching and cleaning stages of silicon wafer manufacturing use hydrofluoric and nitric acids. To handle these highly acidic exhaust streams, semiconductor plants rely on cleanroom-compatible FRP exhaust systems.
For Flue Gas Desulfurization (FGD) systems in thermal power plants and marine vessels, exhaust gases must be cleaned of sulfur oxides. FRP centrifugal fans deliver the durability needed to handle these corrosive scrubbed gases.
In 2005, Shandong Zhangqiu Blower Co., Ltd. moved to a newly built, high-standard modern industrial park. This facility covers 430,000 m², providing the infrastructure needed for large-scale manufacturing and international collaborations.
Our manufacturing workflow utilizes PLM (Product Lifecycle Management), CAPP (Computer-Aided Process Planning), CAM (Computer-Aided Manufacturing), and CAT (Computer-Aided Testing) systems. Equipped with over 100 sets of advanced machinery—including CNC machining centers, five-axis machining centers, and 3D measuring instruments imported from Japan and Germany—our production facilities operate with high precision.
To support global supply chains, we maintain four manufacturing bases in Wuxi (Jiangsu), Dongguan (Guangdong), Chenzhou (Hunan), and Jinchang (Gansu), along with R&D centers in Beijing, Shanghai, Shijiazhuang, and Wuxi. This network ensures a reliable supply of blowers, pumps, and components even during volatile market conditions.
Shandong Zhangqiu Blower Co., Ltd. (formerly Shandong Zhangqiu Blower Works) is a public company with over 50 years of experience in blower design and manufacturing technology. On July 7, 2011, the company was officially listed on the Shenzhen Stock Exchange (Stock Code: 002598). We have established two Sino-Japanese Joint Ventures and a USA branch, making us one of the first Chinese blower manufacturers to expand overseas.
Our overall strategy is to "Develop main business, pioneer new fields and innovate, cooperate to be a great company", supported by our core concept: "Do the best". Today, we are a diversified engineering enterprise integrated in the design, manufacturing, and sales of Roots blowers, centrifugal blowers, industrial fans, pumps, pneumatic conveying systems, electrical equipment, MVR evaporation crystallization systems, and wastewater treatment systems.
We maintain a dedicated product development and design center equipped with testing instruments and index evaluation systems. Our R&D processes utilize modern software platforms, including PLM for product lifecycle management and computer-aided testing (CAT) to verify mechanical performance. With these tools, we can evaluate structural dynamics, flow velocity, and thermal properties before casting and fabrication, helping to improve production precision and shorten design-to-build cycles.
Our research and development team includes engineering specialists, doctorate researchers introduced via municipal talent projects, and technical consultants. We have established an on-site postgraduate workstation to support research in fluid machinery design and material science.
To keep our engineering practices current, we collaborate closely with domestic institutions, including Tsinghua University, Xi'an Jiaotong University, the China University of Mining and Technology, and Shandong University. These partnerships help us refine our designs and integrate new engineering concepts into our blower and pump lines.
We maintain a structured quality control system to ensure our products meet international performance and safety standards.
Our engineers have developed and patented technologies for countercurrent cooling, blower noise reduction, anti-sticky wear protection, two-stage tandem configurations, and specialized sealing systems. To date, we have been authorized with 69 patents (including 5 invention patents) and 2 software copyrights.
We maintain certifications for core management systems, including ISO9001 (Quality Management), ISO14001 (Environmental Management), ISO50001 (Energy Management), and ISO10012 (Measurement Management). Additionally, our products carry safety certifications such as the CE mark, mining safety approvals, and energy-saving product certifications.
To support our international customers, we have established a dedicated foreign trade division and a USA-based branch. This helps simplify logistics, import/export compliance, and localized customer support. We currently export to over 70 countries and regions, including the United States, Germany, Italy, and Japan.
Our engineering team can provide 3D CAD drawings and initial system layouts within 24 hours of receiving a request. We design and build our equipment to meet specific application requirements, ensuring compatibility with your process conditions.
"Cohesion produces strength, unity brings glory."
Our workforce operates with a commitment to continuous improvement. We structure our management to value individual initiative, helping our teams focus on quality and product reliability.
FRP (Fiberglass Reinforced Plastic) provides excellent corrosion resistance across a broad pH range and is unaffected by halides or acid chlorides that can cause pitting in stainless steel. Additionally, FRP components have a lower weight, which reduces motor startup load and helps extend bearing life.
We select resins based on the chemical composition of the exhaust stream. For standard applications, we use premium vinyl ester resins. For highly corrosive chemical processes or elevated temperatures, we utilize specialty resins such as Derakane or bisphenol-A systems, adding flame-retardant additives when required by site specifications.
Yes. Our design team can provide 3D CAD files within 24 hours of receiving your specifications. We can customize casing orientations, inlet/outlet sizes, and mounting configurations to fit your facility's layout.
All impellers undergo static and dynamic balancing to limit vibration. Completed blower assemblies are run-tested at our testing facility to verify performance parameters like flow rate, static pressure, bearing temperature, and sound levels before they are cleared for delivery.
Our international sales team, supported by our USA branch and distribution partners, manages shipping logistics, custom clearance, and technical support. We export to over 70 countries and provide remote or on-site installation and commissioning guidance.
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