VHS5806P Vertical Hollow-Shaft Motor (500HP, Three Phase Induction Motor)

VHS motors, also known as deep well pump motors, are primarily designed to directly drive vertical turbine pumps for extracting water from underground depths ranging from 300 to 1000 meters. They are widely used in agricultural irrigation, hydropower water lifting, and seawater desalination projects, and are particularly suitable for desert, arid, and high-altitude regions facing water scarcity. The motor features a vertical hollow-shaft design, enabling direct and efficient coupling with the pump impeller. This direct-drive configuration shortens the transmission chain, reduces energy losses, and significantly improves overall operating efficiency. The motor housing is manufactured from high-strength cast iron, offering excellent compressive strength and corrosion resistance, allowing the motor to operate reliably in harsh and complex deep-well environments.

The motor stator windings are made of high-quality electromagnetic wire and treated with vacuum pressure impregnation (VPI), ensuring reliable insulation performance and minimizing the risk of insulation failure during long-term continuous operation. The rotor is precisely dynamically balanced, resulting in smooth operation with low vibration and noise levels, which effectively extends the service life of the motor. In addition, the motor is equipped with a comprehensive sealing system, including multiple radial oil seals and mechanical seal combinations at both the upper and lower end covers. This sealing structure effectively prevents sand, moisture, and other contaminants in well water from entering the motor, ensuring safe, stable, and long-term operation under demanding conditions.