What does Xinheng offer to customers?
Our company manufactures an-isotropic ceramic strontium ferrite
magnet made by means of wet compression molding.
What's the key advantages of ceramic strontium ferrite magnets made
by wet compression molding?
Low cost - Strontium ferrite is inexpensive and the wet molding
process is relatively simple. This makes them cheaper than
rare-earth magnets.
High magnetic property-Even without heavy rare earth element
additions, strontium ferrite magnets can achieve coercivities of
700-1000 kA/m, making them suitable for many applications.
Dimensional consistency - The compression molding process allows
for close dimensional tolerances and uniform magnet shapes to be
produced consistently.
Temperature stability - Strontium ferrite magnets have high Curie
temperatures, typically around 450-470°C. They maintain good
magnetic properties over a wide operating temperature range.
Resistance to corrosion - Being fully dense ceramic materials, they
are not prone to corrosion like bonded magnets containing
additives.
Mass production capability - The molding process is amenable to
automated high-volume manufacturing of complex magnet geometries.
PHYSICAL PROPERTIES OF SINTERED FERRITE MAGNETS
| Units | Sintered Ferrite (Ceramic) |
| Curie Temperature | ºC | 450 |
| Maximum Operating Temperature | ºC | 350 |
| Hardness | Hv | >530 |
| Density | g/cm3 | 4.8 – 5.0 |
| Relative recoil permeability | μrec | 1.05-1.1 |
| Temperature Coefficient Br | %/ºC | -0.18 |
| Temperature Coefficient iHc | %/ºC | 0.11-0.40 |
| Anti-Bending Strength | N/m2 | (0.5-0.9)×108 |
| Anti-Compressive Strength | N/m2 | ≥6.9×108 |
| Anti-Tensile Strength | N/m2 | (0.2-0.5)×108 |
| Specific Heat | J/kg·K | 600-900 |
| Resistivity | Q.cm | >104 |
What's the application of Xinheng's permanent ferrite magnets?
Xinheng mainly manufactures the following types of ceramic arc
segment magnets:
- Automotive motor magnet including automobile starter motor magnet,
automobile wiper motor magnet, automobile rolling window motor
magnet, automobile heating and cooling fan motor magnet, automobile
seat motor magnet, automobile sunroof motor magnet, automobile
powsteering motor magnet, automobile tailgate motor magnet,
automobile oil pump motor magnet, automobile ABS anti-lock motor
magnet, etc.
- Inverter home appliance magnet including inverter washing machine
motor magnet, inverter refrigerator motor magnet, inverter
air-conditioner motor magnet,etc.
- Fan motor magnet including ceiling fan motor magnet, floor fan
magnet, etc.
- Motorcycle motor magnet including motorcycle starter motor magnet,
motorcycle flywheel magneto magnet, etc.
- Electrical tool motor magnet including cutting machine motor
magnet, electric sawing machine motor magnet, lawn mower motor
magnet, gasoline generator magnet, etc.
- Actuator motor magnet including medical bed actuator motor magnet,
TV lifting bracket actuator motor magnet, desk lifting actuator
motor magnet, smart home appliance actuator motor magnet, etc.
How Xinheng fabricates its permanent strontium ferrite magnet?
FERRITE POWDER GRADE OF UNIVERSAL MOTORS MAGNET
| Grade | Br(mT) | Hcb(KA/m) | Hcj(KA/m) | (BH)max(KJ/m3) |
| mT | Gs | KA/m | Oe | KA/m | Oe | KJ/m3 | MGOe |
| Y30H-1 | 380-400 | 3800-4000 | 230-275 | 2890-3460 | 235-290 | 2950-3640 | 27.0-32.5 | 3.4-4.1 |
| Y33 | 410-430 | 4100-4300 | 220-250 | 2760-3140 | 225-255 | 2830-3200 | 31.5-35.0 | 3.9-4.4 |
| Y33H | 410-430 | 4100-4300 | 250-270 | 3140-3390 | 250-275 | 3140-3450 | 31.5-35.0 | 3.9-4.4 |
| Y35 | 430-450 | 4300-4500 | 215-239 | 2700-3000 | 217-241 | 2730-3030 | 33.1-38.2 | 4.1-4.8 |
UNIVERSAL MOTORS MAGNET SPECIFICATION TABLE
| No. | Item | R | r | W | L | h | Grade | Application |
| 1 | W001C | 82.5 | 74.3 | 40.0 | 22.0 | 8.2 | Y30H-1 | 168F external magnet |
| 2 | W002 | 68.0 | 60.0 | 40.3 | 22.0 | 8.0 | Y30H-1 | 152F external magnet |
| 3 | W003 | 97.5 | 89.5 | 40.0 | 22.3 | 8.0 | Y30H-1 | 182F external magnet |
| 4 | W004 | 73.5 | 65.5 | 60.9 | 27.8 | 8.0 | Y33 | 168 internal magnet |
| 5 | W015 | 86.5 | 75.5 | 55.0 | 28.0 | 11.0 | Y30H-1 | 2V77 internal magnet |
| 6 | W040 | 78.0 | 70.0 | 70.0 | 18.0 | 8.0 | Y33 | 2P76 internal magnet |
| 7 | W057 | 74.0 | 61.5 | 34.0 | 28.0 | 12.5 | Y30H-1 | 307-4 internal magnet |
| 8 | W058 | 74.0 | 61.5 | 38.0 | 28.0 | 12.5 | Y30H-1 | 190-5 internal magnet |
| 9 | W060 | 75.7 | 63.2 | 70.0 | 28.0 | 12.5 | Y30H-1 | 1P90 internal magnet |
| 10 | W1182 | 86.0 | 73.0 | 52.0 | 30.0 | 13.0 | Y30H-1 | 120211 internal magnet |
| 11 | W1184 | 73.5 | 62.5 | 61.0 | 25.0 | 11.0 | Y33 | 168 internal magnet |
Introduction Of Universal Motor:
The motor mainly consists of an electromagnet winding or
distributed stator winding to generate a magnetic field and a
rotating armature or rotor and other accessories. Under the action
of rotating magnetic field of the stator winding, the current
passes through the armature squirrel cage aluminum frame and is
made to rotate by the action of magnetic field.
General purpose motor has the advantages of simple structure, easy
manufacture, high running speed, small size, light weight, low
starting energy consumption, economy (no magnet) and so on. Its
high speed makes it suitable for rapidly rotating applications such
as fans, hair dryers and vacuum cleaners. In addition, their
ability to generate high torque at low speeds makes them suitable
for applications such as mixers and portable drilling RIGS.
To know more about Xinheng Permanent Ferrite Magnet
