The company has more than 10 years of production experience in the manhole cover production industry. It has introduced three automated production lines, including one 148-machine molding line (6 molding machines), and two manual molding lines (48 molding workers). All production lines use a central control room. A reasonable control method combining control with on-site control of main equipment and emergency stop control under special circumstances can realize the functions of restrictive protection and automatic fault alarm. The entire electrical control system is at the advanced level of the domestic foundry industry. The production site selects the current domestic advanced process and equipment, adds 2 3T/t electric melting furnaces and automatic control equipment for the production line