Industrial processes often require air and gas removal. As one of the few alternatives to oil seal pumps, dry rotary vacuum pumps have no oil in the mechanism, meaning no internal contamination and less maintenance. This feature is especially advantageous in the pharmaceutical, electronic, and food industries, where contamination is unacceptable. We build processes to accomplish high efficiency, low pressure, and high volume. Jinan Golden Bridge Precision Machinery Co., Ltd. applies for international patents to ensure our dry rotary vacuum pumps utilize the most cutting-edge technology. Manufacturing vacuum pumps is just one aspect of our dedication to total customer satisfaction and providing state-of-the-art technology.