Stuart SA8 Vortex mixer

• Resuspension of cells or chemical pellets in microbiology and biochemistry.
• Mixing of reagents and samples in analytical chemistry.
• Vortexing of small liquid volumes for homogeneity in molecular biology.
• Dissolving powders or solids into liquids in pharmaceutical research.

Speed range

Typically variable, for this model between 200 and 2500 rpm.

Operation modes

Commonly features intermittent (touch) and continuous operation.

Construction material

Units of this type often feature robust die-cast construction for stability.

Vessel compatibility

Standard units accommodate single test tubes; optional accessories typically expand compatibility to flasks, microtitre plates, and multiple tubes.

Footprint

Generally a stable, low-profile design suitable for laboratory benches.

Power supply

Typically operates on standard laboratory mains voltage, commonly 230V AC for UK models.

• What is the primary function of a vortex mixer?

  A vortex mixer is designed to rapidly mix small vials of liquid by creating a fast-spinning vortex in the fluid. This is achieved by placing the tube on a vibrating cup or platform.

• Can this unit handle continuous operation?

• What types of vessels can be used with this mixer?

• Is this mixer suitable for highly viscous liquids?

• What maintenance is typically required for a vortex mixer?

Shakers and incubation mixers are valued for reliable sample preparation and culture growth across biotech and pharmaceutical settings. When buying used models, buyers prioritise consistent temperature control, speed accuracy, and platform stability. Industry sentiment favours machines from established manufacturers with robust build quality. Key strengths include straightforward operation, minimal maintenance requirements, and long operational lifespans. Buyers typically assess motor condition, calibration history, and overall structural integrity before purchase. These instruments remain dependable workhorses in laboratory environments when properly maintained.

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