SMIDA Vacuum Planetary Centrifugal Mixer: Bubble-Free Mixing for High-Viscosity Materials1
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 16 years in material processing, CE, ISO 9001, ISO 14001 and ISO 45001 certified, trusted by 3,000+ partner companies.
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.
