Magnetic drive Roots vacuum pump successfully developed
Developed by Zhejiang Hing Wah Vacuum Equipment Manufacturing Co., Ltd. in Taizhou City, the magnetic transmission Roots vacuum pump has undergone 18 months of continuous trial operation and has proven to be reliable and stable. Recently, it successfully passed an expert evaluation, marking a significant milestone in the company's technological advancement. After over 20 years of continuous improvement, the main performance parameters of the Roots vacuum pump—such as ultimate pressure, pumping speed, energy consumption, and zero-flow compression ratio—have reached or are approaching international advanced levels. However, certain aspects such as vibration, noise, and shaft seal oil leakage still lag slightly behind foreign counterparts. The issue of oil seal leakage remains a key challenge, leading to resource waste, environmental contamination, and disruptions in normal production processes. In response to these challenges, the company invested over three years in research and development, successfully creating China’s first industrial magnetic drive Roots vacuum pump. This innovative design utilizes NdFeB magnet materials for both the inner and outer magnets of the magnetic transmission system, leveraging the magnetic over-torque characteristic to transfer power between the motor and the pump. The pump’s main shaft and inner magnet are completely isolated by a non-metallic sleeve, eliminating the need for a traditional shaft seal and achieving dynamic zero-leakage operation. Compared to conventional rigid coupling systems, the magnetic transmission Roots pump starts without shock and operates more smoothly. Additionally, the use of corrosion-resistant materials makes it suitable for handling corrosive media commonly found in the chemical industry. Currently, the pump can handle up to 2500 liters per second, with more than 60 units already deployed in various enterprises, demonstrating its practical value and reliability in real-world applications. This sifter machines are applicable to grade of dry powder granules materials in pharmaceutics, chemical industry, foodstuff industry, etc. The screening machine consists of the vertical vibrating motor, a sieve bottom, a mesh frame, screening room, the rubber vibrating bowl. This machine can be used for single layer or multiple layers grading.Compact structure, convenient operations and maintenances, stable running, low noise, large quantities of materials-treating, good fineness, strong applicability, etc. Sifter Machine,Screening Machine,Sieving Machine,Vibrating Screener JIANGYIN CITY XUAN TENG MACHINERY EQUIPMENT CO.,LTD , https://www.xuantengmixer.com