Micro Magnet

A micro magnet is a very very small magnet. Most of them made in Neodymium Iron Boron, SmCo, Alnico. If you have some cases that need some custom neodymium magnets (even the micro magnet), don’t hesitate to contact us.

micro magnets

1. What is a micro magnet?

Micro magnets (also name tiny magnets, small magnets, little magnets), are very important units in the industry. like Because the equipment is getting more precise and smart. Like sensors, motors, and medical equipment. so that needs the dimension is smaller and smaller. Especially in the Minimally invasive surgery (MIS), their requirement is much higher. For example, coronary arteries are only 3 to 4 mm in diameter, and the ask for magnet diameter is 1.35 or smaller than that.

Definition:
Small magnet (Little magnet): 0.2-1mm
Micro magnet (Tiny magnet): 0.2-0.9mm

2. What micro magnet we can produce.

we can produce the micro magnet with the below dimension, and with 3 coatings: Ni, Epoxy, Parylene. and the tolerance is +-0.01mm
Minimum block: 0.2*0.2mm
Minimum disc: 0.2*0.2mm
Minimum pipe: 0.38*0.14*2mm
the biggest thin magnet we can made 50*50*0.2mm

3. Micro magnet in medical equipment

In the medical device industry, minimally invasive surgery (MIS) has always had higher and more requirements for the micro magnet. They require smaller sizes than other industries. Because they have no choice. For example, human coronary arteries are only 3 to 4 millimeters in diameter, which requires a magnet diameter of 1.35 or less, otherwise, catheters containing magnets risk injuring the blood vessels.

One of the famous MIS products is the capsule miro camera. The diameter of the capsule is just 11mm. and the magnet is smaller than that.

micro pipe magnet

4. Where to buy the micro magnet

If you just buy a small quantity, you can buy it from an online magnet store (another company’s store).   But if you want a special micro magnet, Osenc will be one of your best choices.

micro pine magnet

5. Why micro magnets are expensive

1. hard to process

Micro magnet is hard to process because that is too small. Cutting and coating is the big problem.

2. high wastage

There is often very high wastage during the production process.
Sometimes, it is often necessary to produce 50-100 pieces in order to produce 1 qualified precision magnet.

3. Special instruments

Normal production can not use for the micro magnet. Because that will make big tolerance. so we own some special instruments. and we also have a Quadratic element measure to check the dimensions and make sure the product reaches the customer’s requirement.

4. Excellent skilled workers

Some micro magnets are actually processed manually. Because with current advanced instruments, some precision custom magnets still cannot be produced.

With our continuous improvement efforts, Osenc has increased the capacity to deliver micron-sized magnets, and now we can process 0.2mm magnets.

Osenc always provides long-term-stability products, which have high quality. We have achieved great development in this field.
Our products, especially our deep-hole thin magnetic ring are widely used in watches, clocks, micro-motor, meters, optical communication, and other fields. Also, we can make a new design according to the customer’s drawing and request. Lots of customers are satisfied with our best techniques in magnetic tubes, magnetic cylinders, columnar magnets, magnetic pipe, hole magnets, magnetic ducts, pipe magnets, tube magnets, Cylinder magnets, deep hole magnets, etc.

ting neodymium magnet
tiny magnet

Custom Shape Micro Magnet

Custom micro magnet is very difficult for lots of factories. This processing ability makes us very proud of ourselves.

In this business, produce big magnets is easier, but produce micro magnets is very very difficult.

Even in China, just a few factories can produce such little magnets with a special shape, like drill a hole in a tiny magnet or the shape is special (likes below picture ).

If you want to purchase any Mirco magnet, don’t hesitate to contact us!