The new overhead blender developed by Wiggens can be widely used in the laboratory applications for mixing the liquids with large volume and high viscosity. With high power brushless DC motor, which is spark free and meet the safety requirement in general lab applications, the new blender can provide more stable and durable capacity in the daily use. The stirring is controlled digitally by the microprocessor, and the stirring rate varies from 40 to 2000 rpm. The rotating speed is displayed on the LED and the previous setting can be memorized for operating reference. To be more efficient for the blending purpose, the reversing stirring function is provided. The overheat protection enables the motor to be working in various environments. Together with the digital control model, the serial product also provide economical anolog control model. With the introduction of the overhead blender products, Wiggens can provide the whole serial products for processes including mixing, homogenizing, emulsification, dispersing for various substances in liquid condition such as liquid solutions, liquid solid kernel mixture, colloid, meltdown state material, etc.