PTFE-Coated Magnetic Stir Bar Retrievers — 250 mm & 350 mm, Sold Each
The Globe Scientific PTFE Stir Bar Retriever recovers magnetic stir bars from beakers, flasks, and deep vessels without contaminating the contents. Its inert fluoropolymer coating suits buffer preparation, reagent mixing, and reaction setups where metal contact and cross-contamination must be avoided. Two lengths reach shallow benchtop vessels or tall graduated cylinders.
Technical Specifications
| Product Type | Magnetic stir bar retriever |
| Volume/Size | 250 mm and 350 mm overall length |
| Material | PTFE-coated magnetic rod |
| Closure/Cap | Not applicable |
| Sterility | Non-sterile |
| Pack Size | 1 per pack (sold each) |
Available Sizes
| Variant | SKU | Price (per pack) |
| 250 mm | SWN564 | $51.10 |
| 350 mm | SWN566 | $57.70 |
Applications
- Recovering stir bars from tall beakers and volumetric flasks
- Removing magnetic bars after buffer and reagent preparation
- Clearing stir bars from narrow-neck Erlenmeyer flasks
- Extracting bars from deep graduated cylinders without pouring
- Safe retrieval from corrosive or sensitive reaction mixtures
- Transferring stir bars between vessels during multi-step protocols
Quality & Procurement
Supplied by labsupplies.com as an authorized Globe Scientific dealer, shipping from US inventory. Packaging carries lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available on request for volume orders.
Frequently Asked Questions
What is the retriever coated with?
Both lengths feature a PTFE coating over the magnetic core, providing a chemically inert surface that resists most reagents and prevents direct metal contact with samples.
Which length should I choose?
The 250 mm SWN564 suits standard benchtop beakers and flasks, while the 350 mm SWN566 reaches stir bars in taller cylinders and deep reaction vessels.
Are these sold individually or in a set?
Each SKU is sold as a single retriever (1 per pack). Order both SWN564 and SWN566 if you need coverage across vessel depths.
Can the retriever be autoclaved?
PTFE is heat-stable, but the embedded magnet limits high-temperature exposure. Wipe-down decontamination or cold sterilization is recommended; confirm with your lab's validated procedures.