Discover our leading line of Roots vacuum systems, centrifugal blowers, and specialized slurry pump technologies designed for peak performance and lower operational cost.
Founded as Shandong Zhangqiu Blower Works, we represent over 50 years of professional blower design, manufacturing technology, and industrial engineering experience. Today, we are proud to stand as a public company listed on the Shenzhen Stock Exchange (Stock Code: 002598) since July 7, 2011.
Through dedicated market focus, we have set up two Sino-Japanese Joint-ventures and one USA subsidiary, establishing ZCBC as the very first enterprise in China's blower industry to create overseas operations. As the absolute leader in local production, our Roots Blower and Roots Vacuum Pump systems continuously maintain the top-ranked market occupancy across the domestic industry.
Our overall development strategy remains clear: "Develop main business, pioneer new fields and innovate, cooperate to be a great company." Operating under the core ethos of "Do the best", we provide global markets with robust, highly efficient system configurations across vacuum, pressure, and fluid transportation domains.
In modern industrial processes, vacuum is as crucial as power and water. From chemical crystallization to pharmaceutical processing, and semiconductor manufacturing to heavy metallurgical extraction, industrial operations demand high volume flow under vacuum conditions. The Roots vacuum pump (also known as a rotary lobe vacuum booster) stands at the center of these processes. By utilizing two twin-lobe or tri-lobe impellers that rotate synchronously in opposite directions, it delivers massive volumetric displacement at moderate to high vacuum ranges.
As globally active exporters, Shandong Zhangqiu Blower Co., Ltd. bridges the gap between raw power and budget optimization. The term "Cheap Roots Vacuum Pump" does not mean compromising on materials or quality; instead, it defines our capacity to deliver maximum value-to-cost ratio. We achieve this by optimizing structural design, utilizing automated five-axis CNC production processes, and utilizing over five decades of supply chain leverage. This results in lowered Total Cost of Ownership (TCO), minimized energy utilization, and reduced maintenance costs for heavy industries worldwide.
Operating without friction in the vacuum chamber ensures zero wear on the lobes. The design avoids internal lubrication, delivering a completely oil-free discharge essential for chemical and clean-room application processes.
By operating in combination with a backing pump (such as a liquid ring or rotary vane system), Roots vacuum pumps dramatically boost pump speeds by a factor of 10x, enabling rapid pull-down times.
Utilizing proprietary dynamic three-lobe profile shapes, our pumps run with reduced gas pulsation, minimal noise emission, and high volumetric efficiency, ensuring long-term continuous reliability.
Our commitment to engineering excellence is backed by serious capital investment in manufacturing technology. ZCBC runs a high-standard industrial park covering an area of 430,000 square meters, packed with advanced processing machinery imported from Japan, Germany, and other world-class industrial nations. This enables us to maintain tolerances in the micron range, which is absolutely critical for Roots pump efficiency.
We are recognized as a third-level enterprise for safety production standardization. Our R&D has successfully generated 69 patents (including 5 invention patents) and 2 software copyrights. Our production is certified according to international frameworks, including:
ZCBC provides specialized configurations designed to meet severe-duty cycles in critical global industries.
Mechanical Vapor Recompression (MVR) systems demand continuous, high-volume vapor extraction. Our customized Roots systems provide high reliability in concentrating wastewater, crystallization, and chemical separation processes, helping plants achieve zero-liquid discharge (ZLD).
For powder, granule, and bulk material transport, Roots blowers and vacuum pumps generate high velocity flows. We supply complete conveying packages including feeder valves, splitter valves, and pressure control systems for cement, chemical, and food processing plants.
Low temperature vacuum drying prevents the thermal decomposition of sensitive active pharmaceutical ingredients (APIs). Our oil-free Roots booster configurations prevent oil contamination in the process, preserving raw material purity.
Vacuum degassing removes dissolved hydrogen, nitrogen, and oxygen during high grade steel smelting. Our rugged, wear-resistant lobe designs survive the fine dust particles and harsh conditions typical in vacuum metallurgy environments.
Navigating international supply chains requires a partner that has both manufacturing scale and local compliance capacity. Shandong Zhangqiu Blower Co., Ltd. has spent decades optimizing international trade channels. With a dedicated USA branch, joint ventures, and four regional production bases across China (Jiangsu Wuxi, Guangdong Dongguan, Hunan Chenzhou, Gansu Jinchang), we ensure your orders are dispatched rapidly and supported locally.
Our research and development capabilities are distributed across four central R&D centers (Beijing, Shanghai, Shijiazhuang, Wuxi), backed by professional engineering talent. We also maintain a "postgraduate workstation" and active research partnerships with leading academic institutions, including Tsinghua University, Xi'an Jiaotong University, China University of Mining and Technology, and Shandong University.
Whether you require custom CAD layouts, 3D design proposals within 24 hours, or specialized structural coatings for corrosive environments, our engineering teams stand ready to deliver bespoke configurations.
Our facilities house high-precision processing centers that maintain quality control. Below are selected views from our modern manufacturing facilities:
To ensure reliable operation under heavy vacuum conditions, sizing must account for both target gas volume and pressure differentials.
| Roots Pump Series | Type of Compression | Displacement Range | Ultimate Vacuum (with backing pump) | Primary Application Fields |
|---|---|---|---|---|
| RR Series | Lobe Rotary (Dual Lobe) | 80 to 12,000 m³/h | Up to 1 x 10⁻³ mbar | General industrial vacuum, chemical processing, packaging systems. |
| TRR Series | Two-stage Roots (High Pressure) | 150 to 8,000 m³/h | Up to 5 x 10⁻⁴ mbar | Heavy degassing, metallurgy, high extraction efficiency. |
| ZMR/ZMH Series | Compact Integrated Package | 50 to 5,000 m³/h | Up to 1 x 10⁻² mbar | Aeration systems, compact pneumatic conveying, space-limited plants. |
| ZG Series | Tri-Lobe Design | 100 to 15,000 m³/h | Up to 2 x 10⁻³ mbar | High-efficiency gas handling, petrochemical, continuous processing. |
We believe that corporate culture is the soul of an enterprise's development. Our leadership team has maintained a people-oriented management philosophy, eliminating operational gaps while prioritizing safety, reliability, and human capital growth. We focus on continuous self-improvement, helping our team to innovate at every level of the company.
"Cohesion produces strength, unity brings glory. Success is just a comma; the highest mountain is always in Zhang Gu people's mind..."
— ZCBC Leadership Team
We address the most common technical questions regarding Roots pump operation, pricing, and system integration.
Explore our specialized heavy-duty slurry pumps, multi-stage blowers, and ceramic wear-resistant fluid systems.
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