VWR 444-1378 Vortex Mixer

• Used in biological and chemical laboratories for mixing small vials of liquid.
• Commonly employed in microbiology for cell suspension and reagent mixing.
• Utilised in biochemistry for enzyme assays and sample preparation.
• Applied in analytical chemistry for dissolving powders and preparing solutions.
• Found in pharmaceutical research for drug discovery and formulation studies.

Typical capacity

Designed for mixing small volumes, typically 0.2 ml to 50 ml tubes, microplates, or small flasks.

Mixing mechanism

Orbital shaking motion creating a vortex in the liquid.

Speed range

Commonly features variable speed control, typically ranging from 200 to 3,000 RPM.

Operating modes

Often includes continuous operation and touch-start modes.

Power supply

For this class of equipment, typically 220-240V, 50/60 Hz, single-phase, suitable for UK laboratory environments.

Footprint

Compact benchtop unit, commonly occupying a footprint of approximately 150-200 mm squared.

Weight

Typically lightweight, ranging from 2 kg to 5 kg for easy relocation within a lab.

• What types of vessels can a vortex mixer accommodate?

  Vortex mixers are typically designed with a cup attachment for single tubes, and many units offer optional accessories for mixing multiple tubes, microplates, or small flasks. Buyers should confirm specific accessory compatibility with the seller.

• Is speed control important for a vortex mixer?

• What is the difference between continuous and touch-start operation?

• How do I clean and maintain a vortex mixer?

• Can a vortex mixer be used for viscous liquids?

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.

General overview for this equipment type