Foreign matter invades and destroys the oil seal, causing oil leakage from the motor. A search of the security inspection machine's manual showed that the motor of the security inspection machine was designed for sealing oil cooling. Foreign matter intrusion destroyed the oil seal, causing the motor to leak oil. Guangdong Shoumenshen Technology Group Co., Ltd. was established in 2006. It is a company specializing in security inspection machines, security inspection doors, channel X-ray security inspection machines, metal detection security inspection doors, safety inspection instruments, explosion-proof cans, law enforcement recorders, body armor, and stab-proof A national high-tech enterprise integrating independent research and development, manufacturing, sales, construction and service of clothing and other security inspection and explosive disposal supplies, a famous trademark in Guangdong Province, a famous brand product in Guangdong Province, one of the top ten brands of police equipment in China, and a leader in police equipment in the national public security system. brand.