NdFeB has a very high energy product and coercivity, can pick up 660 times of own weight of heavy objects.
The advantage is high cost-effective, with good mechanical properties, easy cutting; according customer's demand to manufacture in a wide range of shapes, sizes and grades.
Mostly of rare earth permanent magnet always work do not at room temperature or under vacuum, in order to keep the accuracy of shape size and avoid the Corrosion and oxidation, we must make the coating on the surface,such as zinc, nickel, silver, gold, etc., can also be done phosphorus treatment or spray epoxy resin to slow down the oxidation rate.
Sometime, the customers have high demand of NdFeB anti-corrosion, antioxidant, we can design the magnet,add some elements, such as: niobium, vanadium, cobalt and other metal to replace part of the iron to catch the customer requirements of the acid and alkali resistant,antioxidant level, however, because of special material, we need MOQ for it.
We can according your design to make the szie ,shape and coating for you.
some of our size for soft ferrite core:
Type | Dimension(mm) | Weight (g) | ||||||||||||
A | B | C | D | E min | F | |||||||||
EE8.3 | 8.3±0.3 | 4.0±0.1 | 3.9±0.2 | 2.0 | +0.0 | 6.1 | 3.0±0.2 | 0.7 | ||||||
-0.3 | ||||||||||||||
EE10A | 10.2±0.3 | 5.5±0.1 | 4.75±0.15 | 2.45±0.15 | 7.9 | 4.2±0.1 | 1.5 | |||||||
EE10B | 10.5±0.5 | 5.5±0.15 | 9.8±0.3 | 2.4±0.3 | 7.6 | 4.3±0.2 | 3.2 | |||||||
EE12 | 11.9±0.4 | 6.5±0.3 | 3.7±0.2 | 2.5±0.2 | 8.6 | 4.9±0.3 | 1.8 | |||||||
EF12.2 | 12.2±0.3 | 5.2±0.3 | 4.0±0.3 | 3.2±0.2 | 8.8 | 3.8±0.2 | 3.8 | |||||||
EF12.6 | 12.6±0.4 | 6.4±0.2 | 3.6±0.2 | 3.6±0.2 | 9.0 | 4.7±0.2 | 2.3 | |||||||
EE13A | 13.0 | +0.6 | 6.3±0.3 | 6.0±0.3 | 2.7±0.3 | 10.0 | 4.7±0.3 | 2.7 | ||||||
-0.2 | ||||||||||||||
EE13B | 13.0 | +0.6 | 6.3±0.3 | 9.8±0.3 | 2.7±0.3 | 9.8 | 4.7±0.3 | 3.5 | ||||||
-0.2 | ||||||||||||||
EE13C | 13.3±0.4 | 6.0 | +0.3 | 6.1±0.3 | 2.7±0.3 | 10.0 | 4.8±0.3 | 2.7 | ||||||
-0.0 | ||||||||||||||
EE16 | 16.0±0.5 | 7.3±0.3 | 5.0±0.3 | 4.0±0.3 | 11.8 | 5.2±0.3 | 3.3 | |||||||
EEL16 | 16.8 | +0.5 | 12.2 | +0.5 | 5.0 | +0.1 | 4.0±0.3 | 11.8 | 10.0 | +0.5 | 5.2 | |||
-0.3 | -0.1 | -0.4 | -0.0 | |||||||||||
EE16W | 16.0±0.5 | 7.3±0.3 | 6.7±0.3 | 4.0±0.3 | 11.8 | 5.2±0.3 | 4.6 | |||||||
EF16 | 16.2±0.6 | 8.1±0.3 | 4.5±0.3 | 4.5±0.3 | 11.4 | 5.9±0.3 | 3.9 | |||||||
EE19A | 19.2±0.5 | 8.1±0.3 | 5.2 | +0.0 | 4.7 | +0.2 | 14.4 | 5.5 | +0.3 | 4.8 | ||||
-0.4 | -0.4 | -0.0 | ||||||||||||
EE19B | 19.2±0.5 | 8.1±0.3 | 9.5±0.3 | 4.7±0.3 | 14.4 | 5.5±0.3 | 9.2 | |||||||
EE1916D | 19.2±0.4 | 8.0±0.2 | 4.9±0.2 | 4.9±0.2 | 14.1 | 5.8±0.3 | 4.8 | |||||||
EE1918 | 19.1±0.5 | 9.9±0.25 | 5.0±0.5 | 4.55±0.5 | 14.0 | 7.6±0.15 | ||||||||
EEL19A | 19.1±0.3 | 13.3 | +0.5 | 5.2 | +0.0 | 4.7±0.3 | 14 | 11.0 | +0.5 | 7.0 | ||||
-0.0 | -0.4 | -0.2 | ||||||||||||
EEL19B | 19.2±0.5 | 13.7±0.3 | 4.9±0.3 | 4.7±0.3 | 14.0 | 11.5±0.3 | 7.5 | |||||||
EEL20 | 20.1±0.3 | 13.6±0.3 | 5.0±0.3 | 5.0±0.3 | 14.9 | 11.4±0.3 | 8.4 | |||||||
EF20 | 20.0±0.5 | 10.1±0.3 | 5.7±0.3 | 5.7±0.3 | 14.1 | 7.6±0.3 | 7.5 | |||||||
The main physical properties of arch permanent neodymium magnet:
magnetic properties | Parameters |
Density /g.cm3 Vickers Hardness HV Resistivity /υΩ.cm Compressive strength/N.mm-2 Coefficient of Thermal Expansion (C⊥)/K-1 Coefficient of Thermal Expansion (C∥) /K-1 | 7.45 570 150 780 -4.8X10-6 -3.4X10-6 |
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