Planetary stirring defoamerAdopting a composite motion method combining revolution and rotation, efficient and uniform stirring and defoaming are achieved through the synergistic effect of centrifugal force, shear force, and convection force. The core stirring mechanism can be broken down into the following three levels:

1. Revolution: Centrifugal force drives the overall cycle

Movement mode: The stirring blade rotates around the central axis of the container (the revolution speed is usually 50-500rpm), driving the material inside the container to form a "circular convection". The edge material is thrown towards the center, and the bottom material is carried to the top, forming a large-scale circulation.

Principle of defoaming: The centrifugal force generated by revolution pushes the material outward from the center, causing the bubbles to accelerate and rise to the liquid surface due to buoyancy, while promoting overall mixing of the material and avoiding local stagnation.

Adaptation scenario: Medium to high viscosity materials (such as lithium battery slurry, LED packaging silicone), break the agglomeration state through centrifugal force to ensure uniform dispersion of the materials.

2. Rotation: Shear force refines particles and bubbles

Movement mode: While revolving, the stirring blade rotates at high speed around the axis (usually at a rotational speed of 500-3000rpm), forming local high-speed shear.

Deaeration principle: the strong shear force generated by rotation is like a "mechanical scissors", which can directly cut off the powder aggregates, tear the facial mask of the liquid interface, and cut the micron level bubbles below the submicron level. For example, a 100 μ m ternary powder agglomerate can be sheared into single particles below 5 μ m.

Adaptation scenario: For high viscosity or high agglomeration materials (such as ceramic slurries and graphene composites), the pain points of "powder non wetting and difficult to disperse agglomeration" are solved through shear force.

3. Vacuum environment: accelerates bubble expansion and rupture

Technical principle: Some models (such as vacuum planetary gravity defoaming mixers) evacuate during the mixing process, reducing the pressure inside the container to -0.095MPa. According to Boyle's law, the volume of bubbles inside a liquid rapidly expands, increasing buoyancy and accelerating to the liquid surface, while dissolved gases precipitate due to a decrease in pressure.

Defoaming effect: Under the dual action of vacuum and centrifugal force, the removal rate of bubbles can reach 99.9%, achieving the effect of "no bubbles under the microscope". For example, after processing, the transmittance of electronic packaging materials increases by 30%, and the defect rate of battery paste decreases from 15% to 0.3%.

Adaptation scenario: Manufacturing fields sensitive to bubbles (such as semiconductor packaging, biomedicine), ensuring product performance consistency.


Planetary stirring defoamerSummary of the advantages of mixing method: