The PTFE Magnetic Stirrer Rod in Cross Shape is designed for powerful, stable mixing in laboratory vessels. Its four-arm profile creates stronger liquid movement and turbulence than a conventional cylindrical stirrer bar, making it especially suitable for dissolving powders, homogenizing formulations and mixing liquids that require more active circulation.
The broad cross shape improves stability during rotation and helps the stirrer maintain effective contact with the liquid, including in wider vessels or at lower liquid levels. A strong internal magnetic core provides dependable coupling with the magnetic stirrer, while the smooth PTFE coating offers excellent chemical resistance, low material adhesion and easy cleaning.
Selected for laboratory-grade coating consistency, clean finishing and reliable magnetic performance. Suitable for precision formulation and temperatures up to 250°C.
Key features
- Smooth, chemically resistant PTFE coating
- Strong magnetic core for reliable coupling
- Cross shape
- Easy-to-clean, low-adhesion surface
- Temperature resistant up to 250°C
- Suitable for precision formulation and laboratory mixing
Do you know what is inside your stirrer rod?
A magnetic stirrer rod remains in direct contact with your entire formulation. Unknown core materials and inconsistent PTFE coatings can therefore introduce avoidable contamination risks.
Unverified low-cost rods may create an avoidable risk
Products from unreliable sellers may be supplied without dependable information about PTFE quality, coating thickness, magnetic-core composition or manufacturing controls. A thin, uneven or easily damaged coating can increase the possibility of unwanted contamination.
Trace amounts of heavy metals in low-quality rods
Low-quality stirrer rods from unreliable or unverified sellers may use poorly controlled magnetic-core materials, manufacturing processes or PTFE coatings. If the coating is thin, porous, uneven or damaged, trace amounts of metals from the core or production process may potentially reach the formulation.
Faster wear, scratches and retained cleaning agents
Lower-quality PTFE coatings may be thinner, less uniform or more vulnerable to scratching and abrasion. Damaged areas can retain residues from previous formulations as well as traces of detergents, alcohols, solvent cleaners, disinfectants, acids or alkaline cleaning solutions used to clean the rod.
Unverified marketplace products
- Unknown PTFE purity and coating thickness
- Unknown magnetic-core composition
- Potential trace-metal contamination risk
- Greater risk of premature scratches and wear
Elementra laboratory selection
- Selected for a smooth and consistent PTFE finish
- Strong magnetic coupling for stable rotation
- Clean finishing for precision formulation work
- Quality selected over the lowest possible price
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