Description
BOLA tablet magnetic stirring bars, approximately 30 mm in diameter and 12 mm in height, are PTFE-coated laboratory stirring elements intended for reliable magnetic mixing. Each unit houses an Alnico 5 magnetic core completely covered by a polytetrafluoroethylene (PTFE) coating that delivers universal chemical resistance against aggressive laboratory chemicals. The special tablet shape promotes steady rotation on magnetic stirrers, while the inert PTFE surface reduces sample carry-over and simplifies cleaning. Net weight is 0,015 kg per bar, suited to vessels that benefit from a broader contact footprint and controlled agitation. Supplied as a pack of 3 pieces from manufacturer Bohlender, these BOLA bars support dissolution, homogenisation and general sample preparation workflows. The PTFE overcoat shields the magnetic core and preserves chemical inertness during repeated use. With dimensions of about 30 mm diameter and 12 mm height, the low-profile tablet form couples efficiently to the drive magnet at the vessel base. Robust materials and universal chemical resistance make them a practical choice for routine stirring applications in research and analytical laboratories.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 3 pc(s)
- Product type: Tablet magnetic stirring bar
- Diameter: 30 mm
- Height: 12 mm
- Material: Polytetrafluoroethylene (PTFE)
- Magnetic core: Alnico 5
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Questions about BOLA Star Head Magnetic Stirring Bars, Ø 30 mm H 12 mm PTFE-coated
What is this article?
BOLA Star Head Magnetic Stirring Bars, Ø 30 mm H 12 mm PTFE-coated is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in Magnetic stirring bars, inside Stirring, shaking & mixing, in Lab instruments.
A magnetic stirring bar is the magnet coated in PTFE that spins inside a vessel, driven by a stirrer underneath. Length and shape, plain, oval or cross, have to suit the flask. A bar left against a dry glass wall will grind it.
Stirring keeps a mixture uniform or helps a solid dissolve. A magnetic stirrer spins a bar inside a closed vessel. An overhead stirrer drives a shaft when the liquid is viscous or the volume is large. A vortex mixer agitates a tube. A shaker moves a whole rack or a plate. The shape of the impeller and the speed decide whether the liquid turns over or merely spins. The vessels being stirred are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stirring, shaking & mixing. The sub-category is Magnetic stirring bars. The catalogue is Lab instruments.
Shelves beside this one are Stirring shafts, propellers & impellers, Magnetic stirrers, Stirring & mixing accessories, Homogenisers & dispersers, Shakers, rockers & rotators, Overhead stirrers and Vortex mixers.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.