Magnetic Field Line Tube STEM Lab
Product Code : SCL-M-12519
Quick Answer: The Magnetic Field Line Tube STEM Lab is a sealed transparent tube of clear silicone fluid with suspended iron filings that line up in three dimensions around a magnet placed in its central sleeve. An Alnico bar magnet and a cylindrical neodymium magnet are included.
Last updated: October 2026
Key Features
- Sealed transparent chamber filled with clear silicone fluid
- Passivated, rust-resistant fine iron filings held in suspension
- Central dry-well sleeve for inserting a magnet
- Alnico bar magnet and cylindrical neodymium magnet included
- Double O-ring sealed end caps
- About 120 mm high and 60 mm in diameter
Technical Specifications
| Specification | Value |
|---|---|
| Suspension medium | Clear silicone fluid |
| Indicator particles | Passivated fine iron filings |
| Magnets included | 1 Alnico bar magnet, 1 cylindrical neodymium magnet |
| Seals | Double O-ring end caps |
| Size | Approx. 120 mm height, 60 mm diameter |
About This Product
After a gentle shake to spread the filings, a magnet is slid into the central sleeve and within seconds the particles turn and chain into a 3D pattern of field lines running from pole to pole. Swapping the bar magnet for the cylinder shows how the shape of the source changes the field, and the crowding of lines near the poles shows where the field is strongest. Enquiries from Chile, France, Iran, Morocco, Indonesia and Bangladesh for the Magnetic Field Line Tube STEM Lab receive an export quotation.
Frequently Asked Questions
Can a magnet be stored inside the Magnetic Field Line Tube STEM Lab?
No. Remove the magnet after use; leaving it in the sleeve for long periods can permanently magnetise the filings.
Which magnets come with it?
One Alnico bar magnet and one cylindrical neodymium magnet.
Related: Magnetism, Oersted’s Law Apparatus STEM Lab and Fun with Magnets Kit STEM Lab.
For a quotation on the Magnetic Field Line Tube STEM Lab, contact Educational Instrument.
