UK 
Alnico Cylindrical Bar Magnet
Ideal for a range of switching and security applications
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Alnico Rectangular Bar Magnet
Bar Magnets ideal for educational use, reed switches, relays or hall effect sensors
- 550° maximum operating temperature
- Alnico 2 or 5 magnet material
- Good corrosion resistance
- Sold in pairs
- North pole is indicated by a notch/dimple.
Overview - Alnico Rectangular Bar Magnet
Alnico Rectangular Bar / Rod Magnets
Alnico rectangular bar magnets are high-performance permanent magnets engineered for reliable magnetic attraction, holding, and positioning across industrial, workshop, educational, and general-purpose applications. Manufactured from Alnico (aluminium-nickel-cobalt) alloy, these magnets deliver consistent magnetic strength, excellent temperature stability, and resistance to demagnetisation, making them a robust choice where dependable magnetic performance is required.
The rectangular bar shape provides a uniform magnetic field distribution along its length, making these magnets well suited for applications requiring steady holding force, alignment, or magnetic interaction with flat ferrous surfaces. Their solid construction and straightforward geometry make them easy to mount, handle, or integrate into assemblies, fixtures, and tooling.
Alnico magnet material is especially valued for its ability to maintain magnetic performance at elevated temperatures, outperforming many other permanent magnet materials in thermal environments. This makes Alnico rectangular bar magnets practical for use in fixtures, jigs, workholding systems, sensor components, alignment aids, and other situations where both magnetic strength and thermal resilience are important.
Typical Applications
Alnico Rectangular Bar Magnets are commonly used for:
Holding and positioning ferrous parts on flat surfaces
Magnetic alignment and fixturing in assembly and fabrication setups
Workholding and magnetic gages
Educational demonstrations of magnetic principles
Light-duty industrial and workshop tasks where stable magnetic force is needed
Their straightforward shape and reliable magnetic performance make rectangular bar magnets versatile tools for engineers, technicians, students, and makers.
Why Choose Alnico Rectangular Bar Magnets
Alnico rectangular bar magnets combine steady magnetic pull, thermal stability, and durable construction in a simple yet effective format. The Alnico alloy ensures that these magnets maintain strength under heat and over time, while the rectangular design provides an even magnetic field suited to holding, aligning, and positioning tasks. These magnets are an excellent choice for anyone requiring a dependable permanent magnet solution with broad utility across technical and general-purpose applications.
Key Benefits
Straightforward rectangular design – easy to mount and integrate
Strong, consistent magnetic force – reliable holding and attraction
Thermally stable – maintains performance in elevated temperatures
Durable and long-lasting – suited for workshop and industrial use
Versatile applications – positioning, fixturing, holding, and demonstration
In addition to rectangualr bar magnets we have a range of cylindrical shaped bar magnets.
Model Variations
| Product Number | Gauss | Height (mm) | Length (mm) | Material | Units per pack | Weight per pair (kg) | Width (mm) | Length (in) | Width (in) | Height (in) | Weight (lb) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E842 | 750 | 10 | 50 | Alnico 2 | 2 | 0.22 | 15 | 1.968 | 0.59 | 0.393 | 0.48 |
| E843 | 750 | 10 | 75 | Alnico 2 | 2 | 0.33 | 15 | 2.953 | 0.59 | 0.393 | 0.73 |
| E844 | 1100 | 5 | 20 | Alnico 5 | 5 | 0.03 | 10 | 0.787 | 0.393 | 0.197 | 0.07 |
| E845 | 1100 | 5 | 40 | Alnico 5 | 5 | 0.04 | 12.5 | 1.575 | 0.492 | 0.197 | 0.09 |
| E846 | 1100 | 5 | 60 | Alnico 5 | 5 | 0.13 | 15 | 2.362 | 0.59 | 0.197 | 0.29 |
