The 20×10×2mm Rectangular Neodymium Magnet is an NdFeB permanent magnet with a 20×10mm rectangular face and 2mm thickness, silver nickel finish, suited for DIY school projects and electronics builds. This Neodymium Magnet introduces a rectangular bar form to StemVolt’s magnet lineup — unlike the circular disc variants, the elongated 20mm length creates an extended field footprint along its longer axis, making it suited for linear slot mounting and applications where the magnetic field needs to cover a longer zone.
The rectangular neodymium magnets 200mm² pole face area exceeds the 15mm disc (176mm²) in surface coverage, giving strong face-pull force in a flat thin profile. This neodymium magnet electronics use includes elongated reed switch actuation zones, linear position markers on sliding mechanisms, school bar-magnet demonstrations, and magnetic panel closures on rectangular cabinet doors where a round disc would not fully cover the contact area.
One practical trade-off: these strong neodymium magnets cannot tile seamlessly with round discs from the lineup — rectangular magnets require matching rectangular pockets when embedding flush. Available from StemVolt, offering quality robotics parts and DIY kits at competitive prices. This rectangular neodymium magnet is ideal for DIY projects, robotics applications and STEM models.
Related Product:
- Checkout Ferrite Ring Magnet 37mm
Features:
- Rectangular 20×10mm bar extended field footprint along
- Suits elongated reed switch zones and linear position sensing builds
- NdFeB rare-earth core with nickel corrosion-protection coating
- 2mm thin profile for flush-mount in elongated routed pockets
Technical Specifications:
| Specification | Details |
|---|---|
| Magnet Type | Neodymium (NdFeB) |
| Shape | Rectangular (Bar) |
| Dimensions | 20mm × 10mm × 2mm |
| Color | Silver (Nickel Coated) |
| Features | Strong, DIY Tool, Rare Earth, Widely Used |
Applications:
- Rectangular Magnet used for elongated cabinet door magnetic latch
- College project uses rectangular neodymium magnets for bar field demo
- Sensor uses neodymium magnet electronics for linear slider position
- STEM kit uses strong neodymium magnets for elongated field experiment
Package Includes:
- 1 × 20×10×2mm Rectangular Neodymium Magnet














Sangeeta Manchanda –
Used this 20×10×2mm Rectangular magnet in a robotics project and was impressed by its strength and reliability. The rectangular design made installation simple and effective.
Tanay Dutta –
Authentic product received in excellent condition. Shipment arrived safely and on time.
Arjita Malo –
The magnet arrived within 3 days and was securely packed. Smooth UPI payment, responsive customer care support, and excellent product quality made this a great purchase for educational and DIY applications.
Dhanya Selvam –
Exceeded expectations with precise rectangular shape.