Stirring shafts, propellers & impellers

A propeller suits low to medium viscosity and creates axial flow for general mixing. A turbine gives high shear for dispersing and gas introduction. An anchor handles high viscosity and sweeps the wall, which improves heat transfer. A paddle mixes gently at medium viscosity. A centrifugal stirrer folds to pass through a narrow neck. Drive them with an overhead stirrer; see overhead stirrers. Need advice for your set-up? Mail sales@luminixhealth.com.

Stainless steel is sturdy and suits most aqueous and organic media. PTFE, as a coating or solid, is the choice for acids and aggressive chemicals, as it does not react with them. Glass is inert and lets you see what happens, but it is fragile, so handle it with care at higher speeds. Compare materials in stirring shafts, propellers and impellers. For a quote or a second opinion, write to sales@luminixhealth.com.

The shaft should reach to just above the bottom of the vessel and be long enough for the clamping height of the stirrer above it. The diameter must fit both the chuck of your stirrer and the stirrer guide in the vessel neck. Check both values on the product pages of stirrer and shaft and compare them before ordering. See overhead stirrers. Questions about a specific product? Contact sales@luminixhealth.com.

In a flask or reaction vessel with a ground joint, a stirrer guide with a matching joint guides the shaft and seals the neck, so vapours stay in the vessel. A flexible coupling between stirrer and shaft absorbs small misalignments and reduces wear on the guide. Check the joint size before you order. See reaction vessels and jacketed vessels and ground joint glassware. Unsure which one fits? Ask sales@luminixhealth.com.

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.

This shelf belongs to Stirring, shaking & mixing, inside Lab instruments. Luminix Health distributes this range for laboratory use.

The neighbouring shelves are Magnetic stirring bars, Magnetic stirrers, Stirring & mixing accessories, Homogenisers & dispersers, Shakers, rockers & rotators, Overhead stirrers and Vortex mixers. The category above this shelf is Stirring, shaking & mixing.

Luminix Health distributes this range from the heart of Europe. We deliver across the EU in 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. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology. If the article is not on the shelf, request a quote.