As the world's largest country of fabrication,consumption and export of ACP,China is currently encountering the bottleneck that leakage of thermal oil from composite heating roller caused severely lousy production condition and danger of fire for the whole field.Hereinafter is a new type of roller with electronic-magnetic induction heating technology as the core,which is proved to have good performance in energy saving and emission reducing and can be acting as good alternative for current heating rollers.