Description
Magnetic stirring bar, cylindrical, PTFE coated, approx. 20 x 6 mm is a robust laboratory stirring element designed for effective magnetic mixing of larger liquid volumes. The cylindrical shape together with a seamless PTFE coating guarantees smooth, low-friction rotation and excellent resistance to a broad spectrum of chemicals encountered in research and industrial laboratories. Approximate dimensions of 20 x 6 mm provide greater surface area and torque, making the bar well suited to beakers, flasks and medium-sized reaction vessels used in organic synthesis, sample preparation and process development. The chemically inert PTFE exterior protects the internal magnet, minimises cross-contamination and allows simple rinsing or autoclaving between runs. Supplied as one piece, this stirring bar from manufacturer Hecht couples directly to standard magnetic stirrer drives. Its stable cylindrical geometry promotes consistent centring and thorough homogenisation even with moderately viscous solutions. Laboratories value the combination of mechanical durability and chemical inertness for daily workflows ranging from buffer preparation to dissolution testing. The slightly larger diameter enhances coupling strength while remaining fully compatible with common laboratory glassware.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 1 pc
- Type: Magnetic stirring bar
- Shape: cylindrical
- Coating: PTFE
- Dimensions: approx. 20 x 6 mm
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Questions about Magnetic stirring bars, cylindrical, PTFE coated ca. 20 x 6 mm
What is this article?
Magnetic stirring bars, cylindrical, PTFE coated ca. 20 x 6 mm is the article on this page. Luminix Health distributes Hecht 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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across the EU, two to five days if in stock. 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.

