Description
BOLA half-moon stirring blades measuring 68 × 24 × 3 mm with a bore diameter of 5,8 mm are PTFE agitator elements designed for laboratory mixing in mid-scale flasks. Produced entirely from polytetrafluoroethylene (PTFE) and equipped with an angled groove, they mount firmly on compatible stirring shafts and fit 250 ml vessels with ground joint NS 29/32. The half-moon shape promotes effective radial mixing of liquids and light suspensions while remaining suitable for routine synthesis and process-development tasks. Full PTFE construction provides high chemical resistance toward acids, bases and organic solvents and eliminates metallic contamination of the process medium. Supplied by manufacturer Bohlender as a pack of 3 pieces, each blade has a net weight of 0,008 kg. The design aligns with overhead-stirrer arrangements used as wing, anchor or turbine-type agitators in research and development laboratories. Angled-groove coupling supports stable torque transfer during continuous operation, offering a cleanable, chemically inert stirring solution for flask work at the 250 ml scale where corrosion resistance and reliable mounting are essential.
This article is part of Stirring shafts, propellers & impellers, in Stirring, shaking & mixing.
Key features
- Pack size: 3 pc(s)
- Material: Polytetrafluoroethylene (PTFE)
- Blade dimensions: 68 x 24 x 3 mm
- Bore diameter: 5,8 mm
- Vessel volume: 250 ml
- Ground joint: NS 29/32
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Questions about BOLA Moon-Shaped Stirrer Blades, 68x24x3 mm Ø 5,8 mm 250 ml PTFE, angular long-g
What is this article?
BOLA Moon-Shaped Stirrer Blades, 68x24x3 mm Ø 5,8 mm 250 ml PTFE, angular long-g is the article on this page. Luminix Health distributes Bohlender 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.

