It adopts Programmable Logic Controller (PLC) to realize Automatic Control, and with manual controller, so the men with different level all can operate. The hopper adopts air driven electro-magnetic control systems on orientation, up-down, clamping and loosening. The stirrer designs particularly, low power consumption, saving power by 20-30% less than the ordinary mixers. Exchanging the hoppers can continue to work. And mixed uniformly, easy to change colors, shorten mixed time and high mixed efficiency. Because inputting circled water to cool, it doesn’t solidify after continuing to produce. Special design is easy to disassembly, clean and maintain.