Bi Lobe Blowers
1. The two-blade quasi-involute profile impeller is adopted, with an impeller area coefficient as high as 0.57, which enhances the fan efficiency and reduces the fan noise.
2. The fuel tank is made of aluminum alloy, which has a good heat dissipation effect and can increase the pressure to 98kPa without water cooling.
3. The drive end is designed with a special grease storage tank structure to facilitate the supply of grease, and the gear end is lubricated with oil.
4. High rotational speed, with a maximum speed of up to 5275r/min, it features high efficiency, small size, light weight, compact structure, and convenient use and maintenance.
5. The connection dimensions are in the imperial system and are exactly the same as the external dimensions of similar foreign products, which can directly replace American fans.
The Bi Lobe Blower is a fully British-manufactured line of fans developed specifically for the U.S. market. Independently designed and upgraded using our company’s proprietary technology, this series has achieved significant advancements in both structure and performance. It represents one of today’s most advanced and cost-effective technological products. The ZZ series has passed expert appraisal by the Shandong Provincial Science and Technology Commission, with specialists confirming that its technology has reached the international leading level.
Product Features
Equipped with a two-blade quasi-involute impeller design, with an impeller area coefficient of up to 0.57, ensuring higher efficiency and lower noise.
Aluminum alloy fuel tank with excellent heat dissipation, enabling pressure increases of up to 98 kPa without the need for water cooling.
Drive end designed with a special grease storage structure for convenient lubrication supply; gear end uses oil lubrication for reliable operation.
High rotational speed of up to 5275 r/min, delivering high efficiency, compact size, light weight, sturdy structure, and easy operation and maintenance.
Connection dimensions follow the imperial system and match the external dimensions of comparable U.S. products, making them a direct replacement for American fans.
Main Technical Specifications
Flow rate: 0.7 – 84 m³/min
Pressure increase: 9.8 – 98 kPa
About us
Shandong Zhangqiu Blower Co., Ltd. (referred to as “ZhangGu”, Stock Code: 002598) is one of China’s most reputable and influential manufacturers and suppliers, with nearly 50 years of experience in R&D and production. The company has invested in establishing two Chinese-Japanese joint ventures and also set up the first American branch in China’s blower industry. Today, ZhangGu has developed into a large-scale, modern enterprise engaged in the design and manufacturing of Roots blowers/pumps, turbo blowers, industrial pumps, mills, pneumatic conveying systems, electrical control equipment, and MVR systems. In July 2011, ZhangGu was successfully listed on the Shenzhen Stock Exchange.
ZhangGu has gathered a team of top experts, including recipients of special government allowances at state, provincial, and municipal levels, scholars awarded the title of “Taishan Academician,” and foreign professionals holding doctoral degrees from Japan. The company also maintains close cooperation with leading domestic universities such as Tsinghua University, Xi’an Jiaotong University, Zhejiang University, Jiangsu University, Shandong University, and Shandong University of Science and Technology. With its provincial-level R&D center, ZhangGu possesses strong capabilities in research, design, testing, and inspection within China’s machinery industry.
