Centrifugal pump is the leading product of magnetic pump, magnetic transmission rotary displacement pump has a history of 25 years, only in the past seven or eight years in the design and manufacturing level and large torque capacity has a broad basis. The focus is on the magnetic drive gear pump and screw pump, with a maximum transmission capacity of 400Nm and a power of 150kW at 3500r/min.

In recent years, the permanent magnet transmission technology has been extended from the pump to other sealing machinery, and the technology has focused on improving the reliability of the equipment, the research of new materials resistant to medium corrosion, the accuracy of fluid technology and manufacturing assembly. Magnetic pump represents the level of a country’s manufacturing technology, in recent years, the industrial developed countries of magnetic pump in efficiency, life, manufacturing cycle, cost, reliability and other aspects of breakthrough progress.

Permanent magnet transmission technology is to transfer the power of the prime mover through the external magnetic components on its shaft to the internal magnetic components on the working shaft, the internal and external magnetic components are separated by the isolation cover, so that the working shaft does not need to extend the space to be closed, cancel the dynamic seal, to achieve no seal and zero leakage. Permanent magnet transmission technology is mainly used in chemical industry, petrochemical industry, medicine, food industry pumps and compressors, mixers and valves. At present, the traditional mechanical seals widely used in China’s fluid machinery have been gradually replaced by permanent magnet transmission in these departments abroad.

In order to meet the needs of domestic and foreign markets, petrochemical companies have developed their complete sets of equipment to large scale, and China must have a number of refineries with an annual output of 10 million tons and ethylene plants with an annual output of 1 million tons. Mechanical equipment to meet heavy load, long cycle, low energy consumption, and meet environmental requirements. China found in imitation foreign products, manufacturing magnetic pump material and process requirements are very high.