Digital Overhead Stirrer 687

Digital Overhead Stirrer Model 687

The digital stirring rod model 687 is designed for stirring liquids in laboratories, educational centres and technical environments that require precise speed control and stable operation. It features a backlit LCD display, a brushless motor and digital control, allowing operation within a speed range of 100 to 2500 rpm and with a maximum stirring volume of up to 40 L. Its ability to handle liquids of up to 15000 mPas and its maximum torque of 50 Ncm make it a suitable solution for mixing applications of varying demands.

Digital Control and Operating Modes

This model allows continuous operation as well as timed operation, making it easier to adapt to different working processes. It offers three stirring modes: clockwise rotation, counter-clockwise rotation and alternating clockwise/counter-clockwise rotation, a useful option for improving homogenisation in certain preparations. The speed accuracy of ±1 rpm supports reliable process control during routine use.

Design and Materials

The unit features a plastic housing and a stainless steel head, a combination that provides strength and practicality for routine use. It also incorporates motor overload protection to contribute to safe operation and a longer service life. The backlit LCD display makes the working parameters easy to read and improves visibility during operation.

Supply and Technical Characteristics

The stirrer is supplied with a stainless steel stand and stirring shaft, so it is ready for use. The 200 x 300 mm stand base provides good stability during operation. It operates with a 100-240 V, 50/60 Hz power supply, has a power rating of 80 W, an IP22 protection class and a net weight of 7.5 kg. Thanks to its performance, it is a suitable option for stirring tasks in laboratories, schools, factories and other technical environments.