The Most Cost-Effective High Resistance Permanent Ferrite Magnets feature:
Item No. MPFB-40X20X7
Material: isotropic & anisotropic ferrite / ceramic
Size: 40mm length * 20mm width * 7mm thickness
Shape: Bar, Block, Rectangular
Style: Hard Sintered Ferrite
Type: Permanent
Grade: Y30BH, Y33, Y30, Y25, Y35, Y38
This ferrite block magnet has a 40mm length, a 20mm width and a height of 7mm.
Ceramic Magnets are made from strontium carbonate and iron oxide. Ceramic magnets are black in color and are hard and brittle. Ceramic magnets are the most widely used magnet in the home, industry and commerce due to good resistance to demagnetization and the lowest cost among all kinds of magnets.
Grade C1 ceramic magnets are made of non-oriented materials and have less magnetic strength than Grade C5 and C8.
Grade C5 and C8 ceramic magnets are magnetic oriented and are magnetized only through the oriented direction, but they are more powerful than C1.C8 ceramic magnets have higher resistance to magnetic demagnetization than C5 and C1.For more detailed information on ceramic magnets, please see the table below. High Temperature Resistance Long Bar Ferrite Permanent Magnet
Applications of Ceramic Magnets
– DC motors
– Speakers
– Magnetic Holders
– Magnetic Lifters
– Magnetic Separators and
– Different magnetic assemblies and tools
Tolerance of Ceramic Magnet
The tolerance of ceramic magnets on the dimensions between unfinished surfaces is ±2% or ±0.025” whichever is greater, and tolerance on the dimensions between finished surfaces is ±0.005”. Tolerance on thickness of C5 and C8 ceramic magnets are always ±0.005”. Large Block Anisotropic Ferrite Permanent Magnet
Our ferrite magnet can become your trustworthy companion! It can use in motor,speaker or other industrial area.
Huge Ceramic Magnet Advantages
1.Best power to weight ratio of all magnets
2.High resistance to demagnetization
3.Often the most cost-effective choice
4.High temperature resistance(up to 220°C)
5.High corrosion resistance
CERAMIC
CERAMIC PERMANENT MAGNETS ARE AN ECONOMICAL CHOICE FOR A WIDE RANGE OF APPLICATIONS. CERAMIC MATERIALS PRODUCE STRONG MAGNETIC PROPERTIES, AND IS AVAILABLE IN CUSTOMIZABLE SHAPES AND SIZES.
| Ferrite Grades | Remanent Induction | Coercive Force | Intrinsic Coercive Force | Maximum Energy Product | Reversible Temperature Coefficients | Continuous Working Temp. | |||||
| Br (Gauss) | Hc (Oe) | Hci (Oe) | (BH)max (MGOe) | α Br | ß Hci | Tw (°C) | |||||
| Min | Max | Min | Max | Min | Max | Min | Max | %/°C | %/°C | Max | |
| C0 | 2,100 | 2,300 | 1,600 | 2,000 | 2,650 | 2,950 | 0.7 | 1.1 | -0.20 | 0.35 | 350 |
| C1 | 2,250 | 2,450 | 1,750 | 2,050 | 3,100 | 3,400 | 0.9 | 2.0 | -0.20 | 0.35 | 350 |
| C4 | 3,200 | 3,400 | 1,700 | 2,100 | 1,750 | 2,150 | 2.3 | 2.7 | -0.20 | 0.35 | 350 |
| C4B | 3,800 | 4,000 | 1,800 | 2,200 | 1,850 | 2,250 | 3.0 | 3.4 | -0.20 | 0.35 | 350 |
| C5 | 3,800 | 4,050 | 2,200 | 2,600 | 2,250 | 2,650 | 3.2 | 3.6 | -0.20 | 0.35 | 350 |
| C7 | 3,700 | 3,900 | 3,300 | 3,650 | 3,850 | 4,150 | 3.6 | 3.8 | -0.20 | 0.35 | 350 |
| C8 | 3,900 | 4,100 | 3,000 | 3,400 | 3,050 | 3,450 | 3.4 | 3.8 | -0.20 | 0.35 | 350 |
| C8H | 3,700 | 3,900 | 3,500 | 3,800 | 4,800 | 5,100 | 3.2 | 3.6 | -0.20 | 0.35 | 350 |
| C8B | 3,950 | 4,150 | 3,300 | 3,650 | 3,500 | 3,800 | 3.6 | 4.0 | -0.20 | 0.35 | 350 |
| C9H | 3,900 | 4,100 | 3,670 | 3,970 | 4,350 | 4,650 | 4.0 | 4.4 | -0.20 | 0.35 | 350 |
| C9B | 4,300 | 4,500 | 3,100 | 3,400 | 3,150 | 3,450 | 4.4 | 4.8 | -0.20 | 0.35 | 350 |
| C10 | 4,000 | 4,200 | 2,700 | 3,000 | 2,750 | 3,050 | 3.7 | 4.1 | -0.20 | 0.35 | 350 |
| C10H | 4,100 | 4,300 | 3,550 | 3,850 | 3,850 | 4,150 | 4.0 | 4.4 | -0.20 | 0.35 | 350 |
| C11 | 4,200 | 4,400 | 4,020 | 4,320 | 4,850 | 5,150 | 4.2 | 4.6 | -0.20 | 0.35 | 350 |
| C12 | 4,500 | 4,700 | 3,200 | 3,500 | 3,450 | 3,750 | 4.8 | 5.2 | -0.20 | 0.35 | 350 |
Magnetic Properties of Ferrite Magnets
National standard
| Grade | Value | |||||||
| Br | Hcb(BHC) | Hcj(IHC) | (BH)max | |||||
| mT | KG | KA/m | KOe | KA/m | KOe | Kj/m3 | MGOe | |
| Y10T(=C1) | 200/218 | 2.00/2.18 | 125/145 | 1.57/1.82 | 210/250 | 2.64/3.14 | 6.5/8.0 | 0.8/1.0 |
| Y25 | 360/370 | 3.60/3.70 | 135/150 | 1.70/1.88 | 140/170 | 1.76/2.14 | 22.5/25.3 | 2.8/3.2 |
| Y30(=C5) | 380/385 | 3.80/3.85 | 191/210 | 2.40/2.64 | 199/220 | 2.50/2.51 | 26.0/28 | 3.4/3.7 |
| Y30BH | 380/390 | 3.80/3.90 | 223/235 | 2.80/2.95 | 231/245 | 2.90/3.08 | 27.0/30.0 | 3.4/3.7 |
| Y33 | 410/420 | 4.10/4.20 | 220/235 | 2.77/2.95 | 225/240 | 2.83/3.01 | 31.5/33.0 | 4.0/4.2 |
| Y35 | 400/410 | 4.00/4.10 | 175/195 | 2.20/2.45 | 180/200 | 2.26/2.51 | 30.0/32.0 | 3.8/4.0 |
| C8(=C8A) | 385/390 | 3.85/3.90 | 235/255 | 2.95/3.20 | 242/265 | 3.05/3.33 | 27.8/30.0 | 3.5/3.7 |
| C10 | 400/410 | 4.00/4.10 | 288/300 | 3.62/3.77 | 280/287 | 3.51/3.60 | 30.4/31.9 | 3.8/4.0 |
Y10T 250ºC Y25 250ºC Y30 250ºC Y33 250ºC Y35 250ºC Y30BH 250ºC Y33BH 250ºC
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