Engineered for high-efficiency, harsh operational environments, and long-term mechanical reliability.
Shandong Zhangqiu Blower Co., Ltd. (Formerly named: Shandong Zhangqiu Blower Works) is a company with over 50 years’ blower design, manufacture technology and experience. We set up two Sino-Japanese Joint-ventures and one USA branch that of 1st company in China blower industry establishing oversea branch. We are the leading enterprise in Zhangqiu local industry and main product-Roots Blower’s market occupancy is top-ranked in China blower industry.
Overall developing strategy: “Develop main business, pioneer new fields and innovate, cooperate to be a great company”. Working concept: “Do the best”. Now we are a modern company integrated the design, manufacturing and sales on products of: Roots Blower, Centrifugal Blower, Fan, Industrial Pump, Pneumatic Conveying System, Electrical Equipment, MVR Evaporation, Concentration and Crystallization system, Waste Water Treatment Product and Service and etc.
"In July 7th, 2011, the company was publicly listed on the Shenzhen Stock Exchange (Stock Code: 002598). In 2020, the parent company realized operating income of 1.5 billion yuan and profit of 150 million yuan, with 20 holding companies and 4 modern manufacturing bases worldwide."
Our expansive new industrial park, established in 2005, covers an area of 430,000 m² with state-of-the-art facilities and a magnificent office building designed for seamless cooperation with global buyers and engineering partners.
In modern industrial fluid networks, the handling of volatile liquids, liquefied gases, and high-pressure low-flow media presents distinct engineering challenges. Traditionally referred to as Roth Handling Pumps (or regenerative turbine pumps), these systems occupy a critical niche between displacement pumps and standard centrifugal designs. In contrast to conventional centrifugal impellers, which suffer from cavitation and vapor lock when handling media near their boiling points, the regenerative turbine principle enables these pumps to handle up to 20% to 50% entrained vapor without interruption.
Currently, the global industry is witnessing a rapid shift toward zero-emission targets, requiring hermetically sealed magnetic drive configurations for Roth-type pumps. This development prevents fugitive volatile organic compound (VOC) emissions, which is particularly vital in applications involving hazardous refrigerants, solvents, and liquified petroleum gas (LPG). Concurrently, the rise of hydrogen transport and carbon capture utilization and storage (CCUS) projects has driven the demand for specialized low Net Positive Suction Head (NPSH) handling systems capable of pumping volatile media under extreme thermodynamic boundaries.
Procurement directors and EPC contractors evaluating heavy-industry systems face complex criteria. Standard chemical transfer pumps are no longer evaluated solely on initial purchase price; rather, the Total Cost of Ownership (TCO) rules decisions. Critical requirements include:
Integrating fluid mechanics, pneumatic conveying, and thermal energy recovery into unified macro-engineered ecosystems.
Our solutions extend beyond standalone pump units. In modern industrial complexes, ZhangGu leverages its comprehensive technology stack to deliver complete MVR (Mechanical Vapor Recompression) Evaporation, Concentration, and Crystallization Systems. Within these setups, industrial pumps manage aggressive slurry transfer, while high-efficiency blowers recompress secondary steam to slash plant thermal footprints.
Whether handling chemical concentration or mineral processing waste, our systems feature advanced corrosion-resistant impellers, wear-resistant seals, and predictive diagnostic nodes to minimize unexpected downtime.
With nearly 100 sets of advanced processing equipment including CNC machining centers, five-axis machining centers, three-axis measuring instruments, and ultrasonic flaw detectors imported from Japan and Germany, we secure high-precision machining tolerances for all rotating equipment parts.
We implement a comprehensive Product Lifecycle Management (PLM) system, Computer-Aided Manufacturing (CAM), and Computer-Aided Process Design (CAPP) to accelerate development and ensure 3D CAD design configurations are generated within 24 hours of customer request.
Our engineering superiority is sustained by a continuous inflow of elite researchers and university partnerships.
Our research team features national experts enjoying State Council special allowances, senior engineers, and doctoral candidates brought in under Jinan's "5150" talent acquisition project.
Collaborative relationships with Tsinghua University, Xi'an Jiaotong University, China University of Mining and Technology, and Shandong University ensure state-of-the-art research backing.
Authorized with 69 patents (including 5 core invention patents) and 2 software copyrights spanning countercurrent cooling, noise reduction, and smart mechanical seal wear diagnostics.
Industrial components must meet strict operating standards. Our facilities operate under third-party safety production standardization audits and maintain certifications including:
Additionally, our products conform to ATEX requirements for zone 1 and zone 2 explosive gas mixtures, establishing safe, long-term operational capabilities in hazardous industrial plants.
In response to global demands for decarbonization and energy conservation, our design engineering roadmap focuses on three main developments:
Eliminating chemical leakage is a primary requirement for volatile fluid handling. We are continuously improving our magnetic drive lines to isolate pumped liquids completely. By using advanced samarium-cobalt (SmCo) magnets and high-resistance containment shells, we minimize eddy-current heat losses, extending seal-free pump life to over 10 years of maintenance-free operation.
Through Computational Fluid Dynamics (CFD) optimization, our engineers design side-channel impellers that reduce inlet turbulence. This reduces the pump's Net Positive Suction Head Requirement (NPSHr), allowing liquids with high vapor pressures (such as ammonia, liquid CO2, and light hydrocarbons) to be handled without the risk of cavitation.
Integrating vibration, pressure, and temperature sensors into pump and blower bearings allows us to offer real-time telemetry. Predictive maintenance algorithms detect cavitation patterns, bearing wear, and seal failures before they cause system downtime.
Corporate culture is the soul of the development of a large enterprise and a reflection of the management level of an enterprise. The successful construction of a corporate culture shows that it is successful in management and the greater the development potential of the enterprise. It includes many aspects, such as work concept, development strategy, corporate style construction, system construction, etc.
ZhangGu Company fully respects the value of people, pays attention to the individual spirit of each employee, and strives to form a strong sense of value identity and cohesion within the enterprise. We have established close support networks via our US branch and overseas distribution hubs, exporting products to over 70 countries and regions including the United States, Germany, Italy, and Japan.
Answers to common engineering questions regarding Roth handling pumps, Roots blowers, and slurry systems.
Heavy-duty industrial blowers, turbochargers, and liquid-ring vacuum pumps engineered for process optimization.
Zhangqiu
