How does a High Shear Mixer Work?
When a force pushes part of an object in one direction and another part of the object in the opposite direction within the same parallel plane, this is known as shear.
A liquid mixer or powder disperser uses a rotor, rotating at very high speeds, to direct material outwards towards a stationary stator and therefore 'shear' the material.
Variable rotor speeds provide the ability to uniquely tailor the amount of shear energy that is needed for each application. This processing technique can be used to mix a liquid, solid, or gas into a liquid with which it ordinarily would not easily mix.
High-shear mixing is commonly used for homogenization, dispersion, emulsification or particle size reduction.
What does shear mean when mixing?
The term shear refers to the stress imparted to a liquid by a mixing blade or impeller.
What does a high shear mixing do?
High shear mixing can be used to create emulsions, suspensions and granular products. It is commonly used in the food, pharmaceutical, and cosmetic industries to emulsify, homogenize, and reduce particle size.
What is a high speed mixer?
High-speed mixers are agitators that can handle more difficult solid-liquid dispersions and emulsions than high-speed dispersers.
What’s the difference between a high shear mixer and a high-pressure homogenizer?
High shear mixers rely on rotor/stator shearing action, whereas high-pressure homogenizers utilize high amounts of energy to form pressure differentials to homogenize or size reduce ingredients. High-speed, high-shear rotor/stator mixers are able to close the gap between traditional rotor/stator mixers and high-pressure homogenizers into submicron size reduction.
What is an inline high shear mixer and how is it different from batch mixer?
An inline high shear mixer features an inlet that feeds ingredients perpendicularly into the shearing zone, and an outlet discharging product axially. Unlike a batch mixer, an inline mixer feeds and outputs material in a continuous stream. The material is then often perfectly hydrated, emulsified or homogenized in a single pass. Batch mixers, by comparison, require ingredients to be mixed for longer periods of time in a tank, and 100% dispersion is rarely achieved lowering product yields and wasting valuable ingredients.
Inline high-shear mixers offer a few advantages over batch mixers. They allow for a more controlled mixing environment, they’re less bulky, they allow for continuous inline mixing and they can produce results within a fraction of the time.
What are the practical applications of industrial high-shear mixing?
Examples of applications high shear mixers are typically used for:
- Liquid-liquid emulsification and homogenization
- Varying viscosities of liquid-liquid mixing
- Solid-liquid suspension
- Powder-liquid dispersion
- Particle size reduction
What are some of the everyday consumer goods that can be created using a high shear mixer?
Hundreds – if not thousands – of consumer products require the mixing or dispersion of liquid or solid compounds. Salad dressings, paints, cosmetics, detergents, shampoos, ointments, and toothpaste, for example, are all products where high-shear mixing is used to create a consistent quality product. High shear mixers excel at dispersing difficult to wet powders and rheology modifiers.
Do High Shear Lab Mixers Exist?
Yes – in fact, using a laboratory high shear mixer is a practical way for those with liquid processing needs to test the technology with different applications. It’s also a quick, convenient way for your R&D department to evaluate processing strategies and formulations before scaling up to production capacities.
What is the cost of an Industrial High Shear Mixer?
Like any capital expense, your investment in a high shear mixing unit will depend on your processing application and processing needs. However, by purchasing an inline high shear mixer you can expect a high return on investment by shortening your production time, improving product yields, increasing capacities, and reducing associated manufacturing and maintenance costs (energy and operators.
Which high-shear mixing equipment is right for my needs?
The processing experts and High Shear Mixer Manufacturer Quadro Liquids can help you determine which high-shear mixer is best suited for your application.
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