The compact Twister Vacuum Mixer is used in dental applications to obtain a homogeneous mix of the dental plasters,silicons and investments. The device finds application in dental technology for modelling materials and conventional casting. The high performance twister motor provides a main mixing sequence and enables a effortless and homogeneous programmed mixing speed of every material, every quantity and every beaker size. The mixer offers an adjustable volume level from 70 to 100% which prevents formation of bubbles on duplicating silicons and certain plasters. The compact device provides an easy installation as wall mounted or bench top unit. The device is equipped with an integrated vacuum pump which makes it completely independent of any compressed air source.