Every sound speaker, from the smallest to the most powerful, has a permanent magnet. Located behind the center of the speaker cone, the magnet interacts with a changing magnetic field from an electrical coil. The pushing and pulling forces move the speaker cone rapidly in and out, producing sound. Speaker manufacturers use different kinds of magnets to suit speakers of different sizes and to achieve a range of tone qualities.
To get good sound from a speaker, you need a strong magnet. Neodymium has the greatest field strength of any permanent magnet known. Speakers made with these magnets have good frequency response, and because the magnets are strong, you can use smaller magnets, reducing speaker size and weight.
Neodymium magnets made high-fidelity ear buds possible, as they can pack a strong magnetic field into a tiny package. However, these magnets shatter easily.
Due to the sizes of the magnet, there may be variations on pull strength. Please contact our customer service team for more information.
TYoke | Magnet(Ferrite) | Washer | Air Gap(mm) | Magnetic Flux(GS) | Remark |
SM-0113--00 | Φ210x54.6-Φ75.4 | Φ220xΦ110x25.4 | Φ210xΦ78.5x10 | 1.550 | |
SM-0113--01 | Φ70x23-Φ24.95 | Φ80xΦ32x15 | Φ70xΦ26.5x3 | 0.775 | |
SM-0113--02 | Φ130x39-Φ36.9 | Φ140xΦ63x20 | Φ130xΦ39.4x8 | 1.250 | |
SM-0113--03 | Φ195x42-Φ61.9 | Φ200xΦ80x20 | Φ195xΦ65.1x10 | 1.600 | |
SM-0113--04 | Φ215x46.4-Φ98.5 | Φ220xΦ110x25.4 | Φ215xΦ104.5x8 | 3.000 | |
SM-0113--05 | Φ130x38-Φ49.9 | Φ140xΦ63x20 | Φ130xΦ52.6x8 | 1.350 | |
SM-0113--06 | Φ177x42-Φ61.9 | Φ200xΦ80x20 | Φ177xΦ64.9x10 | 1.500 | |
SM-0113--07 | Φ110x41-Φ36.9 | Φ115xΦ43x22 | Φ110xΦ39.4x8 | 1.250 | |
SM-0113--08 | Φ215x46.4-Φ98.5 | Φ220xΦ110x25.4 | Φ215xΦ102.1x8 | 1.800 | |
SM-0113--09 | Φ177x42-Φ61.8 | Φ200xΦ80x20 | Φ177xΦ66.1x10 | 2.150 | |
SM-0113--10 | Φ150x40.5-Φ49.9 | Φ160xΦ57x17.5 | Φ150xΦ52.7x8 | 1.400 | |
SM-0113--10A | Φ150x40.5-Φ49.9 | Φ160xΦ57x17.5 | Φ150xΦ54.2x8 | 2.150 | |
SM-0113--11 | Φ57x21-Φ24.95 | Φ59.5xΦ32x13 | Φ63xΦ26.15x3 | 0.600 | |
SM-0113--12 | Φ200x61.04-Φ101.6 | Φ215xΦ115x25.4 | Φ200xΦ106x14.3 | 2.200 | |
SM-0113--13 | Φ200x61.04-Φ76.2 | Φ212xΦ99x25.4 | Φ200xΦ81x14.3 | 2.400 | |
SM-0113--14 | Φ155.6x46.83-Φ63.119 | Φ165xΦ70x21 | Φ155.58xΦ65.66x9.6 | 1.270 | |
SM-0113--15 | Φ155.6x46.83-Φ50.75 | Φ165xΦ60x21 | Φ155.58xΦ52.96x9.6 | 1.105 | |
SM-0113--16 | Φ198x43-Φ99.1 | Φ220xΦ110x23 | Φ176xΦ103.5x10 | 2.200 | 10400 |
SM-0113--17 | Φ94x27-Φ50 | Φ102xΦ60x17 | Φ94xΦ52x4 | 1.000 | 11000 |
SM-0113--18 | Φ94x29-Φ37 | Φ100xΦ45x18 | Φ94xΦ38.6x5 | 0.800 | 15000 |
