Find HS Code and trade information for high shear mixer

High Shear Mixer

A high shear mixer is a versatile piece of industrial equipment used for rapidly homogenizing, emulsifying, dissolving, dispersing, and deagglomerating fluids, solids, and gases. It achieves this through the mechanical application of high shear forces.

Material:

High shear mixers are typically constructed from stainless steel (304 or 316 grades are common, depending on the corrosivity of the materials being processed). Other materials, such as Hastelloy, may be used for highly corrosive applications. The rotor and stator components, crucial for generating shear, are often hardened alloys to resist wear. Seals are commonly made from materials like Teflon, Viton, or silicone.

Purpose:

The primary purpose of a high shear mixer is to reduce particle size and create stable mixtures. Specific applications include:

• Emulsification: Creating stable emulsions (e.g., oil in water, water in oil) for products like lotions, creams, and food products.
• Homogenization: Reducing particle size to create uniform mixtures, often used in dairy processing, pharmaceuticals, and chemical manufacturing.
• Dissolving: Accelerating the dissolution of solids into liquids.
• Dispersion: Distributing solid particles evenly throughout a liquid medium, preventing settling or agglomeration.
• Deagglomeration: Breaking down clumps of particles into smaller, individual particles.
• Particle Size Reduction: Reducing the average particle diameter of solids in a liquid suspension.

Function:

High shear mixers function by using a rapidly rotating rotor and a closely fitting stator. The rotor, with specifically designed geometries (see "Common Types" below), creates intense hydraulic shear as the fluid is forced between the rotor and stator. This shear stress breaks down particle size, disperses solids, and promotes mixing. The high velocity and turbulence generated also contribute to efficient mixing.

Usage Scenarios:

• Pharmaceutical Industry: Production of intravenous emulsions, vaccines, and drug suspensions.
• Cosmetics Industry: Creation of creams, lotions, and foundations with consistent texture and stability.
• Food and Beverage Industry: Homogenization of milk, production of sauces, and emulsification of dressings.
• Chemical Industry: Production of paints, coatings, adhesives, and polymers.
• Petrochemical Industry: Emulsification of oil and water mixtures.
• Wastewater Treatment: Dispersing chemicals for improved treatment efficiency.
• Biotechnology: Cell disruption, protein extraction, and fermentation processes.

Common Types:

• Rotor-Stator Mixers: The most common type. Different rotor-stator geometries are used for specific applications:
  • Inline: Fluid passes through the mixer in a continuous flow. Suitable for large-volume, continuous processing.
  • Batch: Mixer is immersed in a tank for batch processing.
  • Tri-Blade Rotor: General-purpose, suitable for a wide range of applications.
  • Square Tooth Rotor: Provides higher shear for more difficult applications.
  • Disperser Blade: Used for dispersing pigments and solids.
• Bag Mixers: Designed for mixing within plastic bags, reducing contamination risk.
• Portable Mixers: Handheld or benchtop models for smaller-scale applications.
• Ultrasonic Mixers: Utilize ultrasonic waves to create cavitation and high shear forces.

High shear mixers are mechanical appliances used for projecting, dispersing, or spraying liquids or powders. They utilize high-speed rotation to create intense shear forces, effectively blending, homogenizing, or emulsifying materials. These appliances can be hand-operated or powered, and are employed in various industrial and laboratory settings.

The following HS codes are relevant to high shear mixers, based on the provided information:

• 8424899000: This code covers mechanical appliances (whether or not hand operated) for projecting, dispersing or spraying liquids or powders; fire extinguishers, whether or not charged; spray guns and similar appliances; steam or sand blasting machines and similar jet projecting machines; parts thereof: Other appliances: Other. This is a broad category encompassing various types of mechanical appliances used for liquid or powder handling, including those not specifically listed elsewhere.

  • 84: Chapter 84 relates to Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof.
  • 24: Heading 8424 specifically covers machinery for projecting, dispersing or spraying liquids or powders.
  • 89: Subheading 842489 covers other appliances within this category.
  • 90: The final two digits (90) denote a specific classification within "other" appliances.

• 8424820090: This code covers mechanical appliances (whether or not hand operated) for projecting, dispersing or spraying liquids or powders; fire extinguishers, whether or not charged; spray guns and similar appliances; steam or sand blasting machines and similar jet projecting machines; parts thereof: Other appliances: Agricultural or horticultural. If the high shear mixer is specifically used in agricultural or horticultural applications, this code may be applicable.

  • 84: Chapter 84 relates to Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof.
  • 24: Heading 8424 specifically covers machinery for projecting, dispersing or spraying liquids or powders.
  • 82: Subheading 842482 covers other appliances within this category.
  • 90: The final two digits (90) denote a specific classification within "agricultural or horticultural" appliances.

Tax Rate Information:

Both HS codes 8424899000 and 8424820090 currently have a base tariff of 1.8% and an additional tariff of 25.0%. Effective April 2, 2025, the additional tariff will increase to 30.0%, resulting in a total tariff of 34.8% (8424899000) or 34.8% (8424820090). The total tax rate will be 56.8% (8424899000) or 57.4% (8424820090).