gyroscope . com website title bar Alt text goes here Website home pageWebsite home page Your BasketYour Basket Find out about delivery optionsFind out about delivery options About usAbout Us Track your parcel hereTrack your parcel here Contact UsContact Us black line





Halbach Array

5 cube magnet halbach array

magnetic card viewer      Halbach array kit      Diagram of halbach array kit     


What is a Halbach array? A Halbach array is a special arrangement of permanent magnets which increases the magnetic field on one side of the device while cancelling the field to near zero on the other side. It is the closest you can get to a one-pole/monopole magnet. In the diagram below, the magnetic field is enhanced on the bottom side and cancelled on the top side (a one-sided flux).

The pattern (on the front face; left, up, right, down) of permanent magnets can be continued indefinitely and have the same effect. It is roughly similar to many horseshoe magnets placed adjacent to each other, with alternating polarity. The effect was discovered by Mallinson in 1973, and these 'one-sided flux' structures were initially described by him as a 'curiosity', although he recognised at the time the potential for significant improvements in magnetic tape technology. In the 1980s, the late Klaus Halbach, a physicist at Lawrence Berkeley National Laboratory, invented the Halbach array to focus accelerator particle beams.

    The kit includes:
  • Aluminium magnet case (8mm x 37.5mm x 12mm)
  • 5 very strong rare earth magnets (cube shaped)
  • 5 grub screws to hold magnets in place (in some cases a spare maybe provided)
  • Alan key to tighten grub screws
  • Magnetic field viewer card
  • Instructions

Note: We have made these kits to be as simple to assemble as possible. It is much easier/stronger than gluing magnets. But assembly still requires a person with good dexterity . Be careful as the magnets are strong and can pinch the skin or fly away from one another.



link to manual Download the manual


(click on the images above to view movie)

Price: £19.99 in



We ship worldwide





Ask us a question



out of stock

Ideal for ages 11+ suggested.
To compare by age group click here
Got a gerneral question? Click here to view our FAQ


suggested products tab
Circular Halbach Array Plus sign Super Precision Gyroscope (without gimbals) Plus sign Metal Flip Over Top Plus sign Ferrofluid - Magnetic fluid/liquid Plus sign Super Gyroscope Gimbals (add-on kit) Plus sign Japanese 63mm Gyro-Top (Chikyu Goma)