Double Planetary Mixer: Ointment Production & Manufacturing

Double Planetary Mixer

A double planetary mixer, also known as a planetary mixer, is a machine used to thoroughly blend both liquid and solid ingredients. It consists of two mixing bowls, an inner mixing bowl, and an outer stationary bowl. Within the inner bowl are planetary whisks or blades that rotate in one direction while the entire inner bowl revolves in the opposite direction. This unique “planetary” motion subjects the ingredients to a complex blending pattern that results in highly efficient mixing.

Details of Double Planetary Mixer

  • The common agitators include paddle type, twist type, claw type, and frame type.
  • good mixing, reaction, kneading, and dissolution functions.


inks, colorants, dyes, coatings, and other industries.

Ointments are semisolid preparations meant for external application to the skin or mucous membranes. They are commonly used to relieve itching, pain, swelling, and other symptoms associated with skin conditions, minor burns, insect bites, and more. An important step in ointment production is mixing and homogenizing the various ingredients to achieve a uniform consistency. A versatile and effective tool for this task is the double planetary mixer.

Double planetary mixers are versatile and efficient mixing devices that find application across various industries, including the production of ointments. These mixers are ideal for handling a wide range of materials and processes, making them valuable for the pharmaceutical and cosmetic industries. The design of double planetary mixers, which includes dual agitators moving in planetary motion, ensures thorough mixing and uniform distribution of ingredients, contributing to the production of high-quality ointments. The mixers are used for the dissolution, mixing, and mixing of high-density materials, and they are applicable in many fields such as pharmaceuticals, chemicals, and cosmetics.

In the production of ointments, double planetary mixers play a crucial role in achieving the desired consistency and homogeneity of the final product. They are also used for the mixing and dispersion of various components, ensuring that the active ingredients are uniformly distributed throughout the ointment base. The incorporation of a vacuum system in double planetary mixers enhances their capabilities, providing advantages such as improved product quality, increased homogeneity, and extended shelf life.

The versatility of double planetary mixers in handling a wide range of viscosities, shear-sensitive materials, and diverse formulations makes them valuable tools in the production of ointments. Their ability to handle various processes such as mixing, dispersion, and dissolution, coupled with the uniformity and efficiency they offer, makes them an essential equipment in the pharmaceutical and cosmetic industries.

FPM double planetary mixer

Key Features and Benefits

– Powerful yet gentle mixing action: The opposing rotational motions of the planetary blades and mixing bowl create a folding and shearing effect that thoroughly incorporates ingredients without damaging heat- or shear-sensitive components.
– Variable speed control: Most double planetary mixers allow the user to adjust the speeds of the planetary blades and mixing bowl rotation independently. This flexibility enables optimization for different mixing tasks and ingredient properties.
– Large capacities: Mixing bowls range in size from 5 quarts up to 80 quarts or more, allowing for batch sizes suitable for small-scale production up to industrial volumes.
– Sanitary and easy to clean: The double planetary mixer’s design has few nooks and crannies where residues can accumulate. Components are also easily removable for thorough cleaning and sanitization between batches.

– Versatile applications: In addition to ointments and creams, double planetary mixers are widely used in food processing, cosmetics manufacturing, and more wherever uniform blending of solids and liquids is required.

In ointment manufacturing, the double planetary mixer plays a vital role in homogenizing the various ingredients into a smooth, lump-free consistency. Here are some typical steps:

1. Weighing ingredients: Oils, waxes, emulsifiers, preservatives, and any solids are carefully measured according to the formulation.
2. Melting of waxes: Any hard waxes or fats are gently melted in the mixer’s outer bowl using the bowl’s heating jacket if equipped.
3. Initial blending: Once melted, the oils and waxes are blended on a low-speed setting to form an oily base.
4. Incorporating water: If the ointment contains water, it is slowly added to the oil base while mixing at a moderate speed.
5. Adding solids: Finely powdered ingredients like clays or starches are gradually sprinkled into the mixing bowl as it turns.
6. Emulsifying: For emulsified creams, an emulsifier like cetostearyl alcohol is added portion-wise with continuous mixing to form a stable emulsion.
7. Cooling: The mixing speed and bowl temperature are reduced to allow the mixture to solidify into a smooth, lump-free ointment base.
8. Final mixing: Any remaining additives or actives are blended in on a low speed until uniformly dispersed.
9. Packaging: The freshly made ointment is immediately filled into suitable containers for storage and distribution.

double planetary mixer

Advantages over Other Mixers

Compared to single-axis mixers, double planetary mixers offer several advantages for ointment production:

– Superior blending efficiency: The complex planetary motion results in a more thorough and rapid incorporation of ingredients versus simple rotation.
– Gentler processing: Heat- and shear-sensitive components like herbs and vitamins are less likely to degrade.
– Greater batch control: Variable speed settings allow tailoring the process for each formulation step and scaling batches.
– Less air entrainment: The folding motion incorporates less air into the mixture compared to high-shear single-axis mixing.
– Sanitary design: The double planetary mixer’s self-cleaning configuration reduces residues and contamination risks.
– Consistent results: The reproducible mixing action facilitates producing ointments of uniform quality and texture in every batch.
– Flexible sizing: Larger double planetary mixers can handle higher production volumes than most single-axis models.

double planetary mixer

The double planetary mixer’s unique design delivers powerful yet gentle blending ideal for transforming raw ingredients into smooth, lump-free ointments and creams. Its versatility and sanitary construction also make it well-suited for scaling up ointment manufacturing. With proper utilization and maintenance, the double planetary mixer is a valuable asset for any company involved in topical semisolid production.

As a professional double planetary mixer manufacturer, FRANLI provides a complete set of mature equipment for related machines and production lines for more than 60 countries and thousands of industries in the world, and in Russia, Turkey, Spain, Brazil, Malaysia, Indonesia, and other regions, for Many enterprises have established related production lines.

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Guidelines For Double Planetary Mixer

FRANLI is a professional double planetary mixer manufacturer. Our double planetary mixer is especially suitable for dissolving, mixing, kneading, and reacting from powder to high-viscosity and high-density materials. According to different viscosities and material characteristics, Choose the right stirring paddle, and provide supporting equipment and production lines for double planetary mixers.

Double Planetary Mixer
Guidelines For Double Planetary Mixer

How to buy a double planet mixer?

This double planetary mixer can mix all types of viscosity of the material in no time. This double planetary mixer contains high-capacity blades that can work from 1 million centipoises to 8 million centipoises.

Double Planetary Mixer
Guidelines For Double Planetary Mixer

Double Planetary Mixer For Sale

FRANLI double planetary mixer is a high-efficiency, multi-purpose, and no-dead angle mandatory mixing and dispersing equipment.

Double Planetary Mixer
Guidelines For Double Planetary Mixer

Electronic Slurry & Double Planetary Mixer

Double planetary mixers are widely used, especially in the field of electronic slurry, whether it is stirring or mixing, the final output effect has been recognized by all walks of life.

Laboratory Double Planetary Mixer
Guidelines For Double Planetary Mixer

Double Planetary Mixer: Laboratory & Production

There are two types of double planetary mixers produced by FRANLI, which mainly involve two major application fields, one is laboratory research type, and the other is a factory production line

Double Planetary Mixer
Guidelines For Double Planetary Mixer

Structural Adhesive Production Equipment & Double Planetary Mixer

The double planetary mixer is one of the ideal types of equipment for low-viscosity materials. This facility has a low and fast mixing dispersing disc, which can complete the functions of high shear and dispersing low viscosity materials at the same time.

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