Special Shape

Special Shape

Block Magnet

Block Magnet

Disk Magnets

Disk Magnets

Ring Magnet

Ring Magnet

Arc Magnet

Arc Magnet

Strong Rare Earth Magnets Manufacturers

Ningbo Jinlun Magnet Technology Co., LTD is professional block rare earth magnets manufacturers and strong ring magnets suppliers, our factory offer series of magnetic material worldwide.
Strong magnetic material, chances are this term refers to a certain material that is made up of alloys with very strong magnetizing properties. Some of the more common materials used in making these magnets include iron, tungsten, cobalt, platinum and even tin. Unfortunately, some of these materials can be harmful when they are accidentally introduced into your body. It is actually difficult to find strong magnets in their natural state. While rare earths are found in nature naturally, they are so reactive that they cannot be made into a usable product without a great deal of effort on the part of scientists. As a result, they are commonly synthesized using the alloys mentioned above, which is where the term "strong magnet" comes from.

ShapeSchematicSize
AxialVertical
Blockblock shaped magnet

 

30<W<100;15<L<80;20<H<60
100≤W≤240;30<L<240;30<H<60
240<W<300;40<L<120;30<H<60

 

Diskdisk shaped magnet

 

6≤D<8;20<H<32
8≤D<9.5;20<H<36
9.5≤D<32;20<H<44
32≤D<250;22<H<60

 

8≤D<17;20<H<32
17≤D<90;22<H<60

Ringring shaped magnet

 

18≤D<32;20<H<35
32≤D<250;20<H<45

 

20≤D≤60
8≤(D-d)/2<15
25≤H≤40

Arctile shape magnet

 

35≤W≤50;
15≤T≤40;
30≤H≤45;

 

35≤W≤50;15≤T≤30; 24≤H≤45
35≤W≤100; 25≤T≤40;30≤H≤80

 

  • Rare earth magnets have been around for a very long time, though it is hard to pinpoint when they were first invented. They can be seen in everything from watches to clothing but were primarily developed for use on automobiles. In addition to being used in the automotive industry, many other industries have found great success in using rare earth magnets in their equipment. This includes medical, aerospace and manufacturing industries. There are a number of different types of magnets available, including ferromagnetic and magnetite.

    Dimensional deviation (unit: mm)

SizeAllowable deviation of sintered surface

Allowable deviation of working surface

Perpendicular to the pressing directionDirection of suppressionFlat grindingInternal and external round grindingWire cuttingslice
≤10±0.25±0.30±0.04±0.05±0.06±0.05
10~20±0.40±0.45±0.05±0.05±0.08±0.08
20~50±0.60±0.70±0.06±0.05±0.10±0.10
50~80±1.00±1.10±0.08±0.05±0.10±0.10
80~150±1.00±1.10±1.15 ±0.15 

 

  • Shape deviation (unit: mm)
Variation typeVariation typeBasic size(mm)Deviation
ParallelismWorking surface room

One half of the tolerance value

between the two planes

VerticalityBetween sintered surfacesRandom90°±1°
Between machined surface and sintered surface90°±1°
Working surface room90°±0.15°
ConcentricityBetween sintered surfacesOuter diameter≤14±0.35mm
14~24±0.60mm
24~40±0.80mm
40~60±1.100mm
60~80±1.150mm
80~180±2.00mm
Working surface roomRandom±0.08mm

 

Magnets in Electroacoustic field

Electroacoustic field

Magnets in Motor field

Motor field

Magnets in Equipment field

Equipment

Magnets in medical insurance

medical insurance

magnets in Household appliances

Household appliances

magnets in other field

other

Vacuum aluminizing

Vacuum aluminizing

Phosphorization

Phosphorization

Epoxy

Epoxy

Galvanizing

Galvanizing

Nickel-plated copper nickel

Nickel-plated copper nickel

Everlube

Everlube