Two-Component Medical Silicone Mixing & Degassing Machine
Clean, bubble-free mixing of two-component medical silicone and white masterbatch — the quiet foundation of compliant device manufacturing.
A medical silicone mixing and degassing machine homogenizes two-component medical silicone and white masterbatch without blades or bubbles.
Learn the five mixing failures that threaten yield and compliance, and the four standard actions that fix them.
A medical silicone mixing and degassing machine is a blade-free planetary centrifugal mixer that homogenizes two-component medical silicone with white masterbatch while removing bubbles under vacuum.
Two-component medical silicone is used in catheters, masks, sealing rings, balloons and laryngeal masks, thanks to its biocompatibility, temperature resistance and chemical inertness.
White masterbatch, used for color marking, appears on almost every medical silicone line.
Simple as A/B-plus-masterbatch mixing sounds, it is where yield and compliance are won or lost.
The Five Mixing Failures That Threaten Medical Silicone
- Uneven mixing.
Agglomerated masterbatch and poorly dispersed A/B components cause color differences and weak mechanical properties that can leak or detach in clinical use. - Trapped air.
High-viscosity silicone folds air in easily, and mixing-then-degassing as two steps re-enters air.
Internal voids become microbial hiding places and fail sterility testing. - Metal contamination.
Impeller friction sheds metal debris that fails biocompatibility testing and scraps whole batches. - Runaway temperature.
Crosslinking starts quickly after mixing; long, hot mixing can pre-cure the material and shrink the molding window. - No traceability.
Manual, experience-based operation leaves no records when regulators ask for data.
Four Standard Actions for Medical-Grade Mixing
- Weigh A, B and masterbatch, and premix at low speed (about 200–800 rpm for 1 minute) to wet the powder.
- Disperse at high speed (about 1500–2000 rpm for 1–2 minutes) to break up masterbatch agglomerates.
- Degas under vacuum (0.2 kPa-class for 2–3 minutes) to remove microbubbles.
- Record every parameter and recall formulas with one touch, so batches are reproducible and auditable.
Why SMIDA
SMIDA's planetary centrifugal mixer is blade-free, so material touches only the cup and metal debris is impossible.
Mixing and degassing happen in one closed step, so air never gets a second chance.
Temperature-controlled models keep process heat low, protecting material activity and the working window.
All parameters are stored digitally for one-touch recall and full traceability.
