As a leading enterprise in China’s pump industry, Tianjin Shuangjin Pump Machinery Co., Ltd. recently elaborated in detail on the outstanding performance and wide applicability of its star product, the GCN series eccentric pump (commonly known as single screw pump). This series of products has won high praise in the shipbuilding and other industrial fields due to its unique working principle and sturdy structure.
Core principle: Gentle and efficient conveying capacity
The core advantage of the GCN series eccentric pump is rooted in its ingenious single-screw pump working principle. This principle is specifically manifested as follows: When the drive shaft drives the rotor to perform planetary motion through a universal coupling, the rotor and the elastic bushing of the stator will continuously mesh, forming a series of continuous and sealed chambers. During the movement of these chambers from the suction end to the discharge end of the pump, their volume remains constant, thus achieving smooth and uniform transportation of the medium. This process does not generate turbulence or agitation, ensuring the integrity of the conveyed liquid.
Robust structure: Outstanding design for harsh working conditions
To address the challenges posed by highly abrasive media, this series of pumps has undergone special reinforcement at key connection points. The two ends of the connecting rod are connected by pin-type universal joints. Both the pin shaft and the bushing are made of special metal materials, which greatly enhances durability and service life. At the same time, the structure is simple and maintenance is convenient. In addition, vulcanized outer hoops are installed at both ends of the stator, which can form a safe seal with the suction port and discharge port, effectively protecting the stator housing from medium corrosion and extending the service life of the entire pump.
Professional applications and powerful performance parameters
The GCN series is specially designed for short-stroke spark-free coupling structures on ships and features outstanding performance. Its maximum working pressure can reach 0.6MPa for a single stage and 1.2MPa for two stages. The maximum flow rate can reach up to 200 cubic meters per hour, capable of handling media with a viscosity of up to 150,000 cst, and the maximum allowable temperature is 80℃. These characteristics make it an ideal choice for transporting complex media such as residual oil, stripping, wastewater and seawater in the shipbuilding industry.
About Tianjin Shuangjin Pump Industry
Since its establishment in 1981, Tianjin Shuangjin Pump Industry Machinery Co., Ltd. has developed into one of the largest and most comprehensive pump manufacturers in China. The company integrates design, development, production, sales and service. Its product line covers single-screw pumps, multi-screw pumps, centrifugal pumps and gear pumps, etc. Through cooperation with domestic and foreign universities and research institutions, the company has a strong independent research and development capability and has obtained multiple national patents. It is committed to providing high-precision and high-reliability fluid transportation solutions for global high-end users.
Post time: Nov-12-2025