High-Performance
Magnetic
Stirring Bars
PTFE-Coated & Glass
Versions Available
Built for Precision. Engineered for Reliability.
Whether you're working in a research lab, pharmaceutical setting, or
industrial process line, our magnetic stirring bars deliver consistent,
contamination-free mixing. Choose the coating and style that best suits your
application.
PTFE-coated stir bars
Chemically inert and resistant to nearly all substances
Withstands wide temperature ranges
Non-stick surface for easy cleaning
Ideal for corrosive environments
Glass-coated stir bars
Excellent thermal shock resistance
Ultra-smooth surface for hygienic applications
Compatible with high-viscosity mixing
Preferred in food, biotech, and pharma labs
Trusted by professionals across industries
The supplied software provides simple operation of the PDA3000, and only a few settings need to be adjusted.
The light intensity and sampling interval can be set, and two of the parameters, DC, RMS and RMS/DC can be chosen to be displayed graphically. The software allows numerical values to be saved to a file or exported to a spreadsheet.
Typical results using the PDA3000, with the DC and Ratio (RMS/DC) values shown as red and blue curves respectively.
A suspension of silica particles in London tap water was used with aluminium sulphate as coagulant. The silica was added at 120s (A) (note the small drop in DC value) and the coagulant at 300s (B), with stirring at 50 rpm. At 620s (C) the stirring speed was increased to 400 rpm for 20s and then returned to 50 rpm. The Ratio value clearly shows the growth of flocs up to a maximum size and their rapid break-up as a result of the increased stirring speed. There is then a partial re-growth of flocs at the lower stirring rate. During the entire process there is very little change in the DC value.
Laboratories
Chemical Processing
Biotech
Education
Food & Beverages
Custom sizes & shapes available
From simple cylinders to complex pivot ring designs —
tailor your stir bar to your mixing needs.
