Industrial performance engineered to deliver optimal cost-efficiencies and long-term utility.
Shandong Zhangqiu Blower Co., Ltd. (formerly known as Shandong Zhangqiu Blower Works) is an industry-leading manufacturing powerhouse established on the foundation of over 50 years of blower design, manufacturing technology, and mechanical engineering experience. Recognizing the necessity of global outreach, we established two Sino-Japanese Joint-Ventures alongside our dedicated USA branch office, making us the first enterprise in China's blower industry to establish an overseas branch.
We represent the pinnacle of regional development in Zhangqiu and stand as a main pillar of China's general machinery market. Our core product, the Roots Blower, has consistently held the top ranking for market share within the domestic Chinese blower industry.
Our overarching corporate strategy—"Develop main business, pioneer new fields and innovate, cooperate to be a great company"—combined with our working concept of "Do the best" drives us to develop state-of-the-art solutions. Today, we stand as a highly diversified, modern enterprise integrating the design, manufacture, and sales of Roots Blowers, Centrifugal Blowers, Fans, Industrial Slurry Pumps, Pneumatic Conveying Systems, Electrical Equipment, and advanced MVR (Mechanical Vapor Recompression) Evaporation, Concentration, and Crystallization systems.
Understanding cost-optimization (Value Engineering) vs cheap quality shortcuts in industrial process design.
In complex fluid systems and chemical process engineering, the procurement of a "cheap" water ring vacuum pump is often misunderstood. In professional procurement, "cheapness" must never correspond to inferior raw materials or poor tolerance control. Rather, it represents the optimization of manufacturing efficiency, systemic vertical integration, and local supply chain maturity.
Water ring vacuum pumps (also classified as liquid ring vacuum pumps) operate using a liquid sealant—usually water—to generate a vacuum. An eccentric, multi-blade impeller is mounted inside a cylindrical casing. As the impeller rotates, centrifugal forces throw the liquid outward to form a concentric liquid ring against the pump housing. This ring creates chambers of changing volume between the impeller blades. During rotation, these volumes expand on the intake side (drawing in gas) and contract on the discharge side (compressing and expelling gas).
Because the gas compression within a water ring pump is isothermal, the temperature of the gas increases minimally during compression. This makes liquid ring vacuum pumps exceptionally safe for handling hazardous, explosive, or highly toxic gases (such as methane extraction in coal mines or VOC recovery in petrochemical complexes).
Moreover, because there is no metal-to-metal contact between the rotating impeller and the static casing, these pumps have extremely low wear rates. They can ingest minor liquid carryover or small abrasive particles without catastrophically failing, unlike dry claw or rotary vane pumps. This is where the long-term cost benefits (the true "cheap" operational cost) of liquid ring technology are realized.
How Zhang Blower utilizes technology, scale, and high-precision automation to deliver cost-optimized solutions.
Why are our water ring vacuum pumps and Roots blowers priced competitively? It is the direct result of our high-standard modern industrial park, constructed in 2005. Covering an expansive 430,000 square meters, this facility brings under one roof all facets of the production chain: from raw iron casting to high-precision CNC machining, dynamic balance testing, and performance validation.
By maintaining 4 dedicated manufacturing bases (Jiangsu Wuxi, Guangdong Dongguan, Hunan Chenzhou, Gansu Jinchang) and 4 centralized R&D hubs (Beijing, Shanghai, Shijiazhuang, Wuxi), we mitigate logistics bottlenecks and capture local raw material advantages.
Over 100 sets of imported machining centers from Japan and Germany, including 5-axis and 3-axis measuring systems, ensuring micro-level tolerances.
Integrates advanced Product Lifecycle Management (PLM) with Computer-Aided Manufacturing (CAM) and Computer-Aided Testing (CAT) for rapid product development cycles.
Authorized with 69 patents (including 5 invention patents and 2 copyrights) featuring countercurrent cooling, specialized coatings, and noise-dampening impellers.
Deploying heavy-duty industrial vacuum and blower systems for global infrastructure and manufacturing projects.
Our mechanical engineering expertise enables us to customize water ring vacuum pumps and associated air-moving equipment for critical, high-load macro applications:
In steam turbine power plants, the efficiency of the turbine depends on maintaining a deep vacuum inside the condenser. Our heavy-duty liquid ring pumps continuously extract non-condensable gases, preventing heat transfer degradation and maximizing thermal power efficiency.
Combining our slurry handling expertise (such as the TZJK-TD Ceramic Slurry Pump and Foam Slurry Pump) with water ring systems allows mining companies to handle highly abrasive froth, tailings, and corrosive drainage systems smoothly.
We design full-scale MVR evaporation systems that minimize carbon emissions and reduce wastewater. Liquid ring compressors and centrifugal blowers work in tandem to compress secondary steam, reclaiming latent heat and reducing the electrical demand of zero-liquid-discharge (ZLD) plants.
Driving forward: Energy conservation, digital twins, and advanced metallurgical coatings.
As a progressive enterprise listed on the Shenzhen Stock Exchange (Stock Code: 002598), we constantly invest in the future of fluid mechanics. Our engineering team, supported by doctoral research centers (including Jinan City "5150" talent program doctorates) and postgraduate academic stations, actively focuses on the following developmental milestones:
Developing advanced fluidic bypass ports within the pump cylinder that eliminate localized vapor collapse, greatly extending impeller lifespan in deep vacuums.
Integrating vibration, temperature, and current sensors directly into the pump shaft assembly, enabling remote diagnostic alerts and proactive predictive maintenance.
Applying specialized ceramic and composite coatings (engineered inside our state-of-the-art laboratory) to shield impellers from rapid abrasion and chemical attack.
Doing business on a global scale demands strict adherence to international safety and quality standards. Our company maintains a three-level safety production standardization, having passed the following rigorous regulatory frameworks:
With export operations spanning the United States, Germany, Italy, and over 70 countries and regions, we maintain deep service capability worldwide. We provide full 3D CAD modeling within 24 hours of customer request to ensure direct engineering alignment before shipping.
The human foundation that supports our mechanical and structural innovations.
Our organization thrives because we foster a corporate culture focused on collective strength: "Cohesion produces strength, unity brings glory." By implementing incentives for scientific and technological talents, we have cultivated a robust team composed of experts receiving State Council allowances, doctoral graduates, and senior engineering professionals.
We work in close cooperation with prestigious academic institutions, including Tsinghua University, Xi'an Jiaotong University, China University of Mining and Technology, and Shandong University. This cooperative framework ensures a steady pipeline of engineering talent and provides the technical support necessary to design state-of-the-art dynamic blower systems.
Authorized and audited by third-party certification bodies.
Standard data comparison table of liquid ring systems versus traditional vacuum architectures.
| Parameter | Water Ring Vacuum Pump | Roots Vacuum Pump | Dry Screw Vacuum Pump |
|---|---|---|---|
| Operating Principle | Liquid seal ring compression | Rotary lobes, non-contacting | Variable pitch screw rotors |
| Inlet Capacity Range | Up to 30,000 m³/h | Up to 15,000 m³/h | Up to 2,500 m³/h |
| Ultimate Vacuum Limit | 33 mbar (with water seal) | 0.01 mbar (multistage) | 0.05 mbar |
| Solid Handling Capability | High (cleansed via liquid seal) | Extremely Low (damages lobes) | Low (leads to rotor locking) |
| Explosive Gas Safety | Excellent (isothermal process) | Requires special purge/ATEX | Requires flame arrestors |
| Typical Maintenance Period | 15,000 - 20,000 Hours | 8,000 - 12,000 Hours | 12,000 - 15,000 Hours |
Expert answers addressing the key queries of global procurement teams and fluid systems engineers.
Take a virtual look inside our ISO-certified production halls.
Engineered for high-volume air displacement, dry bulk handling, and chemical slurry transportation.
Zhangqiu
