Discover our primary range of heavy-duty blowers and industrial vacuum systems engineered for maximum operational efficiency.
Shandong Zhangqiu Blower Co., Ltd. (formerly known as Shandong Zhangqiu Blower Works) represents over five decades of pioneering design, technological development, and heavy industrial manufacturing in the fluid machinery sector. As a leading public enterprise on the Shenzhen Stock Exchange (Stock Code: 002598) since July 7th, 2011, we have built a reputation for providing high-volume air and gas handling machinery across the globe.
ZCBC maintains a strategic focus on technological innovation, structural diversification, and localized global service. To serve international procurement requirements, we established two Sino-Japanese joint ventures and an dedicated USA branch. We are the executive director of the China General Machinery Industry Association (CGMA) and the vice president unit of the Fan Branch of CGMA, serving as the principal drafting unit of national standards for Roots blowers in China.
Understanding Double Inlet Double Width (DIDW) technology for advanced industrial air volume operations.
DIDW (Double Inlet Double Width) blowers feature two symmetric air inlets along a single common shaft and scroll casing. By feeding air from both sides of the impeller structure, DIDW systems handle double the volumetric flow rate of comparable Single Inlet Single Width (SISW) configurations without significantly increasing the radial space requirements of the fan station.
We offer advanced impeller profiling including backward-curved, backward-inclined, and airfoil-shaped blades. Aerodynamic CAD/CAM modeling ensures minimal boundary-layer separation, which maximizes static efficiency (up to 85%) and lowers turbulence-induced noise levels across high-volume industrial ventilation arrays.
Symmetrical load distribution in DIDW designs eliminates the unbalanced axial thrust forces standard in single-sided models. Supported by heavy-duty spherical roller bearings mounted in cast iron housings, the system operates with vibration readings well below ISO 10816 standards, prolonging maintenance intervals.
How engineering and procurement teams implement DIDW centrifugal systems in critical processes.
Procuring heavy machinery like a DIDW centrifugal blower requires a deep analysis of operational parameters. ZCBC provides dynamic solutions configured to specific industrial environments:
Supporting mechanical vapor recompression concentration systems with highly efficient thermal vapor compression blowers.
Supplying high-volume oxidation air for flue gas desulfurization (FGD) scrubbers to achieve strict environmental compliance.
Integrating large-scale biological basin aeration with air foil bearing turbo blowers and energy-efficient multi-stage blowers.
Moving powders, granules, and dry bulk materials across long pipe networks with stable pressure characteristics.
At ZCBC, we believe that high-precision manufacturing is the key to ensuring operational longevity. Our modern 430,000 m² industrial park is equipped with state-of-the-art tooling machinery to maintain strict tolerancing limits:
We utilize the world’s most advanced product lifecycle management (PLM) systems alongside computer-aided manufacturing (CAM), computer-aided process design (CAPP), and computer-aided testing (CAT). Our production floor features nearly 100 sets of advanced CNC machining centers, five-axis machining centers, three-axis coordinate coordinate measuring instruments, and digital ultrasonic flaw detectors imported from Japan and Germany.
Through collaborative R&D programs with Tsinghua University, Xi'an Jiaotong University, Shandong University, and the China University of Mining and Technology, we continuously innovate. We have secured 69 patents (including 5 invention patents) and 2 software copyrights.
Our industrial products conform to strict international frameworks to ensure easy site approvals and safety.
We comply with ISO9001, ISO14001, ISO50001 (Energy Management), and ISO10012 (Measurement Management) standards. Our machinery is fully certified under CE, 3C, and holds specialized Mining Product Safety Marks.
Each DIDW blower is dynamically balanced in our CAT testing facility to exceed ISO 1940 G2.5 vibration specifications, ensuring minimum field vibration and wear.
Our USA branch, joint-venture partners, and local engineering hubs provide direct support with CAD/3D technical layouts, custom configurations, and fast component replacement.
"Do it, and do the best" is the core operating concept that guides our team of engineers, technicians, and sales specialists at ZCBC. We believe that professional growth starts with structural respect for our workforce. By creating postgraduate workstations and bringing in senior domestic and international experts, we establish a robust technical backup for our future technological development.
Our corporate structure is organized around a unified strategy: "Develop main business, pioneer new fields, and innovate; cooperate to build a great company." This approach drives our active developments in intelligent manufacturing, environmental water treatment, and advanced structural materials.
Under the core leadership of Chairman Fang Rungang, the company formulated its long-term development strategy to expand the main business and pioneer innovative joint-venture structures.
Relocated to our 430,000 m² state-of-the-art industrial park. This expansion added advanced fabrication facilities and automated assembly halls to support large-scale international exports.
Successfully listed on the Shenzhen Stock Exchange. This listing expanded our capital reserves, enabling further investments in high-end turbomachinery and air foil bearing developments.
An inside look at our manufacturing processes, precision machining halls, and testing fields.
Get immediate answers to common technical queries about DIDW centrifugal blowers and ordering parameters.
From roots blowers to ceramic slurry pumps, explore our complete machinery catalog.
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