Yuzhen's vacuum pump, manufactured in China, is categorized into dry screw vacuum pumps and Oil lubricated Vacuum Pump, which are based on the working medium and sealing method within the core compression chamber during operation.
The dry screw vacuum pump utilizes a pair of screws that rotate synchronously at high speed in opposite directions within the pump housing to achieve suction and exhaust. During operation, there is a certain gap between the screws, resulting in no friction between them. This ensures smooth and quiet operation with low noise levels. Since the working chamber requires no lubricating oil, the dry screw pump is capable of evacuating gases containing large amounts of water vapor and small amounts of dust. It offers higher ultimate vacuum levels and lower power consumption, making it primarily suitable for applications demanding extremely high cleanliness or where process gases could damage oil-based pumps, such as semiconductor and photovoltaic manufacturing, chemical and pharmaceutical industries, and food packaging and freeze-drying.
On the other hand, Yuzhen's Oil lubricated Vacuum Pump, manufactured in China, is developed to address the fluctuating vacuum demands in production processes, where frequent start-stop cycles of vacuum pumps not only increase the risk of failure but also lead to energy wastage. By incorporating permanent magnet variable frequency drive technology, this vacuum pump can deliver the required flow for the system. This type of pump requires the injection of a small amount of special lubricating oil (or sealing oil) into the compression chamber, primarily for sealing, lubrication, and cooling purposes. However, the oil consumption is significantly lower than that of traditional oil-sealed mechanical pumps. It is particularly suitable for a wide range of applications, including plastics, glass, bottling, canning, wood processing, packaging, printing and papermaking, and meat packaging. Its performance surpasses that of traditional fixed-frequency technology, with an average energy savings of 50%.
Furthermore, based on their types and working principles, vacuum pumps are subdivided into many categories, making them one of the foundational technologies supporting modern high-tech industries and cutting-edge scientific research.