2.520" (64mm) OD x 1.575" (40mm) ID x 0.500" (12.70mm) thick.
Welcome to customize
Brand:
KINGS MAGNETOrder(MOQ):
1Payment:
100%in advanceProduct Origin:
ChinaShipping Port:
Xiamen/Ningbo/ShanghaiColor:
silverLead Time:
25-35daysPhysical Properties：
| No. | Item | Value |
| 1 | Density | 7.3-7.7 g/cm³ |
| 2 | Tensile strength | 8 kg/mm2 |
| 3 | Specific heat | 0.12 k Cak (kg℃) |
| 4 | Modulus of elasticity | 1.6x1011N/m2 |
| 5 | Curie temperature | 300-500℃ |
| 6 | Resistivity | 144 Ω.cm |
| 7 | Coefficient of thermal expansion | 4 x 10-6 /℃ |
| 8 | Stiffness | 0.64 N/㎡ |
| 9 | Hcj temperature coefficient | -0.6 %/℃ |
What is a Halbach Array magnet?
Halbach arrays are a precise arrangement of permanent magnets that directs the magnetic field in a specific area while cancelling the magnetic field to near zero on the other side. We can make halbach arrays and halbach assemblies per customer requirements, but have the below assemblies in stock. If you require a specific size that is not available on our website, please contact us for a custom magnet quote.
*A single magnet is shown at left, with the north pole facing up throughout.
The field strength, indicated by the color scale, is equally strong on the top and bottom of the magnet. In contrast, the Halbach array shown at right has a very strong field on the top, and a fairly weak field on the bottom.
Machining Capability：
We have professional team, advanced equipment and well-trained QC staff to develop different sizes and shapes magnets as customer requirements which can be ensured with very high quality and precise tolerance.Please see below dimensions of ring neodymium magnet:
|
OD(mm) |
ID(mm) | H(mm) | Tol.(mm) |
| 3-300 | 1-200 | 1-100 | ±0.05 & ±0.1mm |
Why would you want one? Where are they actually used?
From Wikipedia:
Although one-sided flux distributions may seem somewhat abstract, they have a surprising number of applications ranging from the refrigerator magnet to industrial applications such as the brushless motor and magnetic coupling. Klaus Halbach originally invented them to use as wiggler magnets used in particle accelerators and free electron lasers.
Storage environment：
* Kings warehouse
Customization Process:
Below is a brief step-by-step guide to customizing magnets, more details will be confirmed during communication.
Certificate
Transportation
FAQ
Q. Why is the price of sample higher than that of batch?
A: For samples we don't have any profit. We only charge the cost of materials and labor. As a manufacturer, the more quantity produced, the lower the unit cost.
Q.Why do I get magnets that break so easily?
A: Magnets are designed to be brittle and fragile. Remove the metal from the working area before using the magnet. Keep the distance between the magnets when using them at the same time. Even small magnets attracted to each other can break with such force.
Q. Do you support exchange and return service?If I buy a magnet and I can't use it.
A: We do not support return or exchange service. As you know, the magnet is a custom product, which is completely customized according to your requirements. This product cannot be resold to others.
Q. What will you do if there is a quality problem?
A: If you have any problem after receiving the magnet, please contact us immediately and shoot a video to us. We make records and take pictures of all the details when we ship. If it's our fault, we'll take the blame. If it happened in transit, we are not responsible for it.
Halbach Array magnet arrangement is designed to produce a strong and directed magnetic field on one side while minimizing the magnetic field on the opposite side.
Halbach Array magnet arrangement is designed to produce a strong and directed magnetic field on one side while minimizing the magnetic field on the opposite side.
A Halbach Array is a special arrangement of permanent magnets that augments the magnetic field on one side of the array while reducing the field to near zero on the other side. This was achieved by having a spatially rotating of magnetization.
Ferrite Magnet is manufactured by a ceramic process, has a relatively hard texture, is a brittle material.
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Common round NdFeB magnets, support 24H salt spray test as well as a maximum operating temperature of 80°C.
Neodymium(NdFeB) magnets are the type of rare earth magnet commercially available and are manufactured in a wide range of shapes, sizes and grades.
There are one or two countersunk holes in the block neodymium pot magnet,which can be used with countersunk head screws,and fixed on the equipment,wall and other places.
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