Heavy Duty Double Decker Rotary Shaker used widely for dosing, matching & mixing of different kind of items. In the Heavy Duty Double Decker Rotary Shaker the high density and viscosity fluid can be mixed as well as solids can be mixed with the liquids.Country of Origin: Made in IndiaBody Material: Stainless SteelVibration System the Electrodynamic Shaker works like the speakers of an audio system. The Vibration Controller generates the signal that is feed to a Power Amplifier much like an MP3 Player of an audio system. The Power Amplifier's outputs is proportional to the input signal by a fixed gain.