Bus bar housing roll forming line. Production speed is 35m/min. The outside dimensions' tolerance is ±0.2mm, and length tolerance is ±0.15mm. The whole production line is equiped with short circuit, overload, overvoltage, over current, default phase preventing function and etc. On the every working part there are testing devices for temperature,hydraulic pressure, air pressure, hydraulic level, lubrication, sheet's running position, electric motor speed and security. When the fault occurs, there will be a flash warning and will display the fault place and give the fault resolution.