Description
BOLA tablet magnetic stirring bars measuring approximately 17 mm in diameter and 13 mm in height provide PTFE-coated magnetic mixing for laboratory vessels that need a slightly larger tablet profile. Each bar houses an Alnico 5 magnetic core beneath a continuous polytetrafluoroethylene (PTFE) coating that delivers universal chemical resistance to common laboratory chemicals. The special tablet shape keeps a low centre of gravity for steady spinning on flat-bottom glassware and couples reliably to conventional magnetic stirrers and hotplate units. The product is offered in a pack of 3 pieces, supporting multi-sample workflows and routine replacement stock. Net weight is 0,005 kg. These BOLA stirrers from manufacturer Bohlender are intended for research, quality-control and educational laboratories requiring inert, chemically durable stirring elements. PTFE surfaces help limit residue build-up and ease cleaning between runs, while the 17 mm by 13 mm tablet dimensions balance contact area and vessel clearance for consistent agitation. Use this size when a compact yet somewhat taller tablet bar is preferred for the working volume and flask geometry at hand.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 3 pc(s)
- Diameter: 17 mm
- Height: 13 mm
- Material: Polytetrafluoroethylene (PTFE)
- Shape: Tablet (special form)
- Magnetic core: Alnico 5
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Questions about BOLA Star Head Magnetic Stirring Bars, Ø 17 mm H 13 mm PTFE-coated
What is this article?
BOLA Star Head Magnetic Stirring Bars, Ø 17 mm H 13 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.