Abstract: The present invention provides a high speed homogenizer which has an adjustable gripping means to grip and hold containers of varying size. This gripping and holding means can be centered or decentered under the homogenizing tool. Decentering a container held by the gripping and holding means tends to minimize or even eliminate vortexing problems. The homogenizer also has electronic means for controlling the speed and time of operation of the homogenizing tool. The electronic control means of the homogenizer can also monitor the temperature of the sample being homogenized and respond to changes in temperature when necessary. The homogenizer can be easily adjusted up and down a vertical support post by a counter weighting mechanism such as a constant force spring.