An auto conveyor with a realization of 90 degree turning, usually applied to line with double side edge bander and drilling machines. Conveyor can make panel turns at a 90°action, applied to all kinds auto line. 1. Two ways in turning could be selected according to the practical use: A: turns from long side to the short one (KA-532) B: turns from long side to the short one;(KA-530) 2. High strength structure, conveying roller, conveying roller, stable performance in life-time service; 3. Independent control of electrical cabinets, independent PLC control system, easy to facility the produce line layout and convenient for software connection. 4. The entrance and exit of the roller table can be equipped with positioning blocks, auxiliary guide wheels and sensors according to the needs of the process, so as to ensure the work piece positioning and timing control when conveying.