SDA
01
Φ 22 mm
H 12 mm
02
Φ 40 mm
H 16 mm
Preferred vessel:
Flow movement: Hybrid axial/radial
Weight: 01 4.90 ± 0.15 g
02 11.70 ± 0.35 g
Viscosity range: 1 - 200 cP
RPM range: 100 - 1100 RPM
High-Shear Design
Reference impeller:
Cowl disk
For Vigorous Fluid Motion
High-shear designs create intense velocity differences within a fluid, generating strong shear forces that enhance mixing. These designs are particularly effective for breaking down particles, reducing droplet sizes, and ensuring uniform reactant distribution.
Key Benefits:
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Efficient Emulsification: creates stable emulsions
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Dissolution: reduces blending time
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Enhanced Micro-Mixing: ensure even distribution of reactants
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Particle Reduction: breaks apart aggregates
Applications:
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Chemicals: to improve dispersion of nanoparticles or reagents
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Food and Beverage: blending additives and coarse emulsions
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Pharmaceuticals: dispersing active ingredients and uniform mixing
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Cosmetics: for blending light creams and serums
For additional information, feel free to download the technical data or contact us
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Emulsion mixing test: SDA02 (800 RPM) vs. double-ended stir bar (400 RPM). The double-ended bar speed is limited to avoid excessive vortex and unwanted air entrapment. In a 0.4% surfactant solution (900 mL) with soybean oil (100 mL), SDA02 produces finer droplets—less transparent appearance—reaching ~50 µm after 31 min, comparable to a mechanical stirrer.
Innovation 1
Biocompatible, Eco-conscious Shell — PEN Natural
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Certified to
USP <88> Class VI, USPP<87>, ISO 10993‑4, and ISO 10993‑10
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Low Extractable potential and PFAS-free
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Complies with ADCF, REACH, and RoHS 2
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Autoclave / Gamma / E‑beam sterilizable
Innovation 2
CFD Simulation-Optimized Design
High-Shear Design:
The SDA (Shear Driven Action) design creates a shear rate that is 2.7X higher than conventional rod stir bar.
A high shear rate, where layers of fluid move rapidly relative to each other, helps break apart droplets, disrupt aggregates, and overcome surface tension, thereby improving the uniformity of the mix.
◄ Streamline plot on the XZ plane from the CFD simulation of SDA02.
Cowl Disk
Radial flow
SDA02
Procession motion
Mixed flow
(US Patent Pending
No. 18/905,379)
The high-shear design SDA series are inspired by the design of cowl‑disk impellers, emulating the blades of high‑shear mixers.
With the assist of CFD (Computational Fluid Dynamics) and repeated experimental validation, the local shear zones have been specially enhanced to break up, cut, and homogenize materials in a manner similar to mechanical mixers. They are specifically developed for stirring applications such as particle dispersion, emulsification, and homogeneous mixing
▲ Fluid flow pattern of cowl disk and SDA02
Usage example
This video compares the magnetic stir bars of Double-Ended (C brand) versus Dancer (FLXR's) in a 1L beaker.
Analysis of oil droplet particles revealed that Dancer was able to achieve droplet sizes 52% smaller with 69% tighter size distribution compared to Double-Ended stir bar after 5 mins of stirring.
This video demonstrates the comparisons between high shear design (SDA), high turnover design (SRS), and conventional rod-shape magnetic stir bar.
From this demo, it is observed that the high‑shear design achieves higher shear rates through strong coupling and optimized geometry, making it suitable for emulsion and dispersion processes.
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