Shakers are laboratory equipment used in order to stir or mix liquids, as well as to prepare solutions and suspensions. These equipments create a movement between liquids or between liquids and solids in order to achieve processes of mixing, suspension, dispersion, homogenization, heat transfer, among others.

Shakers are generally used in clinical and research laboratories; to mix, homogenize and prepare combinations of substances. Although they have recently been replaced by magnetic stirrers, shakers are still preferred when large volume substances have to be mixed or when simultaneous stirring is required.

How is a laboratory shaker constituted?

A laboratory shaker is composed of an oscillating plate that is used to place it has a time control which can be adjusted according to the need, in the same way some have a speed control which can also be adjusted as needed. In the upper part there is a platform where the sample holders are placed, which has a non-slip material.

There is a great variety of models of this equipment and they depend mostly on their size and if their speed is fixed or adjustable. Inside they have an eccentric rotating mechanism that allows the rotation of the substances. To help in this regard, some of these instruments have a sticky platform or clips that hold everything in place when starting the shaking process.

What should you keep in mind when using a laboratory shaker?

These equipments are generally very resistant and have a long useful life, we always keep in mind the following considerations:

• Avoid spilling substances on its surface.
• Turn the equipment on and off correctly.
• Check that the surface where the equipment is placed is flat.
• The equipment must be covered with a protective plastic to avoid the accumulation of dust.

Types of shakers

Laboratory shakers have been designed for different applications in their work areas, and can be classified into:

• Circular motion shaker
• Vibratory motion shaker
• Circular motion shaker
• Horizontal movement shaker
• Three-move shaker
• Shaker incubator

For example, horizontal shaker shakers consist of a horizontally oscillating tabletop, while circular shakers have an orbital shaking motion.

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