The powerful Hei-TORQUE series can accomplish the most demanding mixing tasks whilst providing the highest safety and increased operating lifetime. With a unique Quick-Chuck for tool-free and convenient ‘one-handed’ impeller changes. Featuring an intuitive touch-panel for easy operation, the Value models are suited for simple mixing and stirring tasks with a simple, easy to read display that shows the set and actual rpm along with a torque indicator. With the menu-driven Precision models, the user can set the intensity of the starting speed-up, the maximum rotational speed, and the maximum torque limit according to your application. USB and standard RS232 interface on the Precision models allow for software control and process logging.