Some materials take half an hour to mix.
Others take forty seconds.
Same viscosity, same formulation family — the difference is not the recipe.
It is the machine, and more precisely, the physics of how the machine applies force.

If you have ever watched an impeller mixer struggle with a thick paste, you have seen the problem: the blade spins, but the material at the center barely moves.
Shear is generated at the blade edge and decays rapidly with distance.
The thicker the material, the shorter the reach of the blade — so the machine compensates by spinning longer, heating the batch, and consuming floor time.

The Working Principle: Force Distribution, Not Speed

A planetary centrifugal mixer works on an entirely different principle.
Instead of pushing material with a blade, it spins the whole batch.
The cup holder revolves around the machine's central axis at high speed, and each cup rotates on its own axis at the same time.

• Revolution generates centrifugal force.
  The force acts on every particle in the batch simultaneously, compressing the material and driving it outward and downward.
  There is no "center of the cup" that escapes mixing — the entire volume is under load at once.
• Rotation generates shear.
  Each cup's own spin creates shear at the cup wall and a vortex-like flow within the batch, dispersing agglomerates while the batch keeps turning.
• Vacuum degassing runs in parallel.
  The optional vacuum system removes bubbles during the same cycle, so you are not doing mix-now-degas-later as two operations.

The result is a three-dimensional flow field where every gram of material participates in every rotation.
That is why a planetary centrifugal mixer can disperse a high-viscosity paste in tens of seconds to a few minutes — work that takes an impeller mixer half an hour, or more.

What Faster Mixing Actually Buys You

Speed is not the real prize.
The prize is what speed unlocks:

• Higher throughput per machine.
  Cut a 30-minute mix-degas cycle to 3 minutes and a single machine can produce several times more batches per shift — often eliminating the need to buy a second machine.
• Lower heat input.
  Shorter processing time means less friction heat.
  For heat-sensitive materials, this can be the difference between a usable batch and a ruined one.
• Less operator time and fewer errors.
  With recipe parameters stored and recalled digitally, batches run identically every time, and operators are free for other work.

The dual-cup design doubles productivity again: two cups run in the same cycle, so R&D teams can test two formulations — or production lines can run two batches — in the time a single-cup machine needs for one.

Frequently Asked Questions

Why is a planetary centrifugal mixer faster than a conventional mixer?

Because force is applied to the whole batch by centrifugal acceleration rather than by a blade edge.
Every particle is loaded simultaneously, so mixing time collapses from minutes-per-batch to seconds-per-batch for most materials.

How fast does a SMIDA planetary mixer run?

Revolution speed is adjustable from 200 to 2000 rpm, with independent control of revolution and rotation.
The right speed depends on your material's viscosity and shear sensitivity — we help you set it from a sample test.

Does high speed damage the material?

Blade-free mixing applies shear gently and evenly.
There is no local over-shearing at a blade edge, which is what damages flakes, fibers, and polymers in conventional mixers.

What capacity range is available?

From 1 g laboratory samples to 100 kg+ production machines (equipment range 150 g to 100 kg+), with vacuum, temperature-controlled, and non-vacuum variants.
Dual-cup models are available for higher throughput and side-by-side R&D.

The Bottom Line

Mixing time is a direct lever on capacity, energy, and quality.
A planetary centrifugal mixer pulls the lever hard: seconds instead of minutes, one step instead of three, and heat build-up kept to a minimum.

Tell us what you mix — adhesive, paste, gel, or slurry — and we will run it through a SMIDA mixer in our lab, timing the cycle and showing you the result.
If the speed does not convince you, the sample data will.