磁力搅拌器适用于搅拌或加热搅拌同时进行，适用于粘稠度不是很大的液体或者固液混合物。利用了磁场和漩涡的原理将液体放入容器中后，将搅拌子同时放入液体，当底座产生磁场后，带动搅拌子成圆周循环运动从而达到搅拌液体的目的。配合温度控制装置，可以根据具体的实验要求控制并维持样本温度，帮助实验者设定实验条件，极大的提高了实验重复性的可能。
磁力搅拌器构造及工作原理
磁力驱动搅拌器主要由电机、减速器、水套体、密封筒体、支承体、外磁钢体、内磁钢体、上、下搅拌轴、桨、控制箱等组成（如图）。电机、减速机装在水套体上边，外磁钢体通过回转体组件装在电机、减速器上，内磁钢体装在支承体的轴上，被密封筒体罩在其中，上轴下端与下轴靠联轴器联为一体。电机、减速机带动外磁钢体旋转，通过磁力偶合而带动装在密封筒体内部的内磁钢体旋转，内磁钢体的轴与搅拌轴用联轴器联为一体，对物料进行搅拌。由于内磁钢体及搅拌轴装在密封罩体内部，而密封筒体与釜体之间的平面可用金属石墨垫靠螺栓压紧，因而从根本上改变了搅拌轴与釜体间的“动密封”为“静密封”，从而实现了高温、高压下的无泄漏。
The magnetic drive stirrer mainly consists of a motor, a speed reducer, a water jacket body, a sealing cylinder body, a support body, an outer magnetic steel body, an inner magnetic steel body, upper and lower stirring shafts, paddles, a control box and the like (as shown in the figure). The motor and speed reducer are installed on the water jacket body, the outer magnetic steel body is installed on the motor and speed reducer through the rotating body assembly, the inner magnetic steel body is installed on the shaft of the support body and is covered by the sealed cylinder body, and the lower end of the upper shaft and the lower shaft are integrated by the coupling. The motor and the speed reducer drive the outer magnetic steel body to rotate, and the inner magnetic steel body arranged in the sealed cylinder body is driven to rotate through magnetic coupling, and the shaft of the inner magnetic steel body and the stirring shaft are connected into a whole through a coupling to stir materials. Since the inner magnetic steel body and the stirring shaft are installed inside the sealing cover body, and the plane between the sealing cylinder and the kettle body can be pressed by the metal graphite pad with bolts, the "dynamic seal" between the stirring shaft and the kettle body is fundamentally changed to "static seal", thus realizing no leakage under high temperature and high pressure.
