Description
BR 14 blade stirrer (V4A) is a stainless-steel laboratory impeller engineered for dissolving and homogenising work in larger vessels. It features an overall length of 400 mm, a stirring shaft of 8 mm diameter and a blade measuring 90 mm in width by 10 mm in length. Foldable stirring blades enable convenient insertion through narrow necks, for example into round-bottom flasks, while still providing effective mixing once deployed. Ideal operating conditions include a vessel diameter of 180 mm, bottom clearance of 9 mm, fill height of 180 mm and working volume of 4600 ml. Made from corrosion-resistant V4A stainless steel by manufacturer Heidolph, the BR 14 combines mechanical robustness with chemical durability for continuous laboratory use. The design supports efficient mass transfer in solutions, suspensions and reaction mixtures and integrates readily with common overhead stirrers. Research and quality-control laboratories rely on this impeller when reliable agitation and easy handling in restricted openings are essential.
This article is part of Stirring shafts, propellers & impellers, in Stirring, shaking & mixing.
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Questions about BR 14 Collapsible-Blade Impeller (V4A)
What is this article?
BR 14 Collapsible-Blade Impeller (V4A) is the article on this page. Luminix Health distributes Heidolph for laboratory use. It sits in Stirring shafts, propellers & impellers, inside Stirring, shaking & mixing, in Lab instruments.
A shaft, a propeller or an impeller is the wetted end of an overhead stirrer. The diameter and the pitch decide whether the liquid turns over. The material, stainless steel or PTFE, decides what the liquid may be. The chuck size has to match the stirrer.
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 Stirring shafts, propellers & impellers. The catalogue is Lab instruments.
Shelves beside this one are Magnetic stirring bars, 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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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.

