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How does a high-shear vacuum emulsifier work?

2026-01-27

How does a high-shear vacuum emulsifier work?

The working process of a high-shear vacuum emulsifier involves three key stages, which work synergistically to achieve high-quality emulsification:

High-Shear Homogenization: The core component is the high-speed rotor-stator homogenizing head, which rotates at a high speed (usually 5,000–20,000 rpm). When the rotor rotates, it generates strong centrifugal force, drawing the material into the gap between the rotor and stator. The material is subjected to intense mechanical shear force, impact force, and cavitation effect in this narrow gap. Shear force breaks down large dispersed phase particles into tiny droplets (typically 0.1–5 micrometers); impact force further smashes the particles through collisions; cavitation effect creates tiny bubbles that burst instantly, generating local high pressure to enhance the emulsification effect.
Vacuum Deaeration: During the emulsification process, the vacuum system evacuates the air inside the mixing tank, maintaining a negative pressure environment (usually -0.06 to -0.095 MPa). This prevents air from being mixed into the material during stirring and homogenization, which would otherwise form air bubbles. At the same time, the vacuum environment can remove existing air bubbles in the material, avoiding defects such as surface froth, air holes, and poor stability in the finished product.
Temperature Control & Stirring: The mixing tank is usually equipped with a double-jacket structure, and heat transfer media (hot water, steam, or cooling water) circulate through the jacket to achieve precise temperature control (accuracy ±1–2°C). Temperature control ensures that the material is processed at the optimal emulsification temperature (e.g., 60–85°C for melting waxes in cosmetics) and protects heat-sensitive ingredients (e.g., plant extracts, vitamins) from degradation. The low-speed stirring system (anchor or frame stirrer) ensures that the entire volume of material in the tank is uniformly mixed, avoiding dead zones and ensuring that all materials are subjected to consistent homogenization.

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How does a high-shear vacuum emulsifier work?

2026-01-27

How does a high-shear vacuum emulsifier work?

The working process of a high-shear vacuum emulsifier involves three key stages, which work synergistically to achieve high-quality emulsification:

High-Shear Homogenization: The core component is the high-speed rotor-stator homogenizing head, which rotates at a high speed (usually 5,000–20,000 rpm). When the rotor rotates, it generates strong centrifugal force, drawing the material into the gap between the rotor and stator. The material is subjected to intense mechanical shear force, impact force, and cavitation effect in this narrow gap. Shear force breaks down large dispersed phase particles into tiny droplets (typically 0.1–5 micrometers); impact force further smashes the particles through collisions; cavitation effect creates tiny bubbles that burst instantly, generating local high pressure to enhance the emulsification effect.
Vacuum Deaeration: During the emulsification process, the vacuum system evacuates the air inside the mixing tank, maintaining a negative pressure environment (usually -0.06 to -0.095 MPa). This prevents air from being mixed into the material during stirring and homogenization, which would otherwise form air bubbles. At the same time, the vacuum environment can remove existing air bubbles in the material, avoiding defects such as surface froth, air holes, and poor stability in the finished product.
Temperature Control & Stirring: The mixing tank is usually equipped with a double-jacket structure, and heat transfer media (hot water, steam, or cooling water) circulate through the jacket to achieve precise temperature control (accuracy ±1–2°C). Temperature control ensures that the material is processed at the optimal emulsification temperature (e.g., 60–85°C for melting waxes in cosmetics) and protects heat-sensitive ingredients (e.g., plant extracts, vitamins) from degradation. The low-speed stirring system (anchor or frame stirrer) ensures that the entire volume of material in the tank is uniformly mixed, avoiding dead zones and ensuring that all materials are subjected to consistent homogenization.

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Company news about How does a high-shear vacuum emulsifier work?

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How does a high-shear vacuum emulsifier work?

How does a high-shear vacuum emulsifier work?

Company news about-How does a high-shear vacuum emulsifier work?

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How does a high-shear vacuum emulsifier work?

How does a high-shear vacuum emulsifier work?