This machine uses a permanent magnet DC motor with a booster speed control circuit. It has the advantages of booster function, large function, low voice, stable speed, and continuously adjustable speed. The liquid solution can be accurately and stably stirred over a wide range of speeds, especially suitable for stirring large volumes of samples; equipped with mechanical timing; and equipped with a control box, which can be operated away from the workbench.   Technical Details: IP: IP30 Speed : 0 - 3000 RPM Timer Range: 0-120 Minutes（No heating function） Motor Power: 100W Dimensions: 17"x13"x7" Weight:17.6LBS