A vacuum planetary centrifugal mixer is a mixing and degassing machine that spins sealed cups in a vacuum chamber.
The cups revolve around the machine axis while rotating on their own axis, generating centrifugal force that mixes the material and drives trapped air out — no blades, no paddles, no dead zones.

It is the standard tool for high-viscosity materials that are difficult to mix and degas by other means: adhesives, conductive pastes, potting compounds, thermal gels, and battery slurries.

The Problem with Air in Thick Materials

In a high-viscosity paste, air bubbles are not a cosmetic issue.
They weaken adhesive bonds, block current paths in conductive pastes, and leave pinholes in coatings.
And they are extremely hard to remove: a microbubble in a thick paste can take days to rise to the surface on its own.

How SMIDA Solves It

SMIDA vacuum planetary centrifugal mixers combine three forces in one cycle:

• Revolution — centrifugal force compresses the batch and pushes bubbles toward the surface;
• Rotation — shear at the cup wall breaks up agglomerates;
• Vacuum — down to 0.2 kPa, the vacuum removes the bubbles as they surface.

The result: high-viscosity materials are mixed and degassed in minutes instead of hours or days.

Why Buy from SMIDA

• One platform, every scale.
  Mixing volume from 1 g to 100 kg+, equipment range 150 g to 100 kg+, with vacuum, temperature-controlled, and non-vacuum variants.
• Blade-free by design.
  Material touches only the cup — no metal debris, no cross-contamination, no blade cleaning.
• Temperature control option.
  TTC models hold -15 °C to 25 °C for heat-sensitive materials.
• Factory direct.
  SMIDA is a Shenzhen manufacturer with 17+ years in material processing, CE, ISO 9001, ISO 14001 and ISO 45001 certified, trusted by 2,000+ customers in 40+ countries.

Quick Answers

How low can the vacuum go?

0.2 kPa — enough to remove microbubbles from high-viscosity materials in minutes.

What materials can it mix?

Epoxy, silicone, solder paste, silver paste, thermal paste, LED phosphor, battery slurry, cosmetics, inks, and more.

Do I need a vacuum model?

If bubbles affect your product's performance, yes.
For bubble-insensitive materials, the non-vacuum model is faster and more economical.

Want to see it on your material?
Send a sample to the SMIDA lab for a free mixing test with before-and-after data.

For the full technical guide on vacuum defoaming, read How a Planetary Centrifugal Mixer Removes Bubbles in Minutes.