Ring Injection Molded Bonded NdFeB Magnets – Injection molded magnets are available using ferrite, neodymium-iron-boron, or blends of magnetic materials to achieve an extensive range of properties. Binder types include Nylon 6 and 12, PPS, and Polyamide. The binders and magnetic alloys are capable of a wide range of application temperatures from below -40° C to above 180° C. The Injection molding process is particularly well suited to molding very intricate shapes and thin walled parts. The finished parts can be either very simple or complex in geometry.
Magnetic materials can be insert injection molded directly inside or against an existing component to produce assembly pieces. Injection molded magnets dimensionally conform to mold cavities, which are precisely machined, resulting in finished products which usually do not require further finishing operations. This eliminates subsequent operations and reduces total cost. Permanent Injection Molded Magnets for Brushless DC Motor
Injection Molded:
Binder Types / Nylon / PPS / Polyamide.
Temperature Range -40c 180c
Very Tight tolerances off tool ( 0.002 -0.003 Typical )
Very good mechanical strength
Compression Bonded:
Higher Magnetic Strength due to higher magnetic particle density.
Epoxy Binder / Resistant to normal industrial solvents and automotive fluids
Epoxy Coat after manufacturing to prevent oxidation
Temperature Range -40c ~165c
“Tight” tolerances off tool
Good mechanical strength
Typical Bonded Magnet Applications:
Sensors
Brushless DC Motors
Household Appliances
Compressor
General Bonded Magnet Applications:
Materials are isotropic and can be magnetized in any direction
Wide range of existing tool sizes are available in rings, discs and rectangles
Exsisting Multipole magnetizing fixtures for quick prototyping
Easily machined
Existing Multipole rings simplify assembly verse arc sepments
About us:
HSMAG founded in 2008, as a professional manufacturer and exporter, we are specialized in designing and producing of rare earth magnet, especially for sintered and bonded NdFeB(Neodymium) magnets. Currently we mass produce N52, 50M, 48H, 45SH, 40UH, 38EH, 33AH and other grade of sintered NdFeB(Neodymium) magnet. They are widely used in Automobile, Wind Power, Servo and so on. Our factory is located in Ningbo, Where is the industrial bases of Ndfeb magnet.
With advanced processing and test equipment, The stablility, consistency and tolerance of our magnets can be well controled. Choose ZhongYuan Magnet you can experience more professional technical advice, fast quotation, ordered production plan, quality control and convenient mode of transportation. Which can support us to provide good products and timely delivery. Problem analysis in your position is always our service tenet.
If you have any interest or inquiries for Neodymium(NdFeB) magnet, you are welcomed to inquire here. We are sure you will be satisfied with our price and service.
Magnetic Characteristics and Physical Properties of Bonded Compression Moulding NdFeB
| Grade | HSYM-2 | HSYM-4 | HSYM-6 | HSYM-8L | HSYM-8 | HSYM-8SR | HSYM-10 | HSYM-10H | HSYM-12 | HSYM-12L | HSYM-13L | |
| Br | (mT) | 300-400 | 400-500 | 500-600 | 600-650 | 630-680 | 620-680 | 680-730 | 700-750 | 720-770 | 760-810 | 780-830 |
| Residual Induction | (KGs) | (3.0-4.0) | (4.0-5.0) | (5.0-6.0) | (6.0-6.5) | (6.3-6.8) | (6.2-6.8) | (6.8-7.3) | (7.0-7.5) | (7.2-7.7) | (7.6-8.1) | (7.8-8.3) |
| Hcb | (KA/m) | 240-320 | 240-320 | 320-400 | 360-440 | 400-480 | 400-480 | 400-480 | 440-520 | 440-520 | 400-480 | 400-480 |
| Coercive Force | (KOe) | (3.0-4.0) | (3.0-4.0) | (4.0-5.0) | (4.5-5.5) | (5.0-6.0) | (5.0-6.0) | (5.0-6.0) | (4.5-6.5) | (5.5-6.5) | (5.0-6.0) | (5.0-6.0) |
| Hcj | (KA/m) | 480-640 | 560-720 | 560-720 | 640-800 | 640-800 | 880-1120 | 640-800 | 640-800 | 720-800 | 480-640 | 480-640 |
| Intrinsic Coercive Force | (KOe) | (6.0-8.0) | (7.0-9.0) | (7.0-9.0) | (8.0-10.0) | (8.0-10.0) | (11.0-14.0) | (8.0-10.0) | (8.0-10.0) | (9.0-10.0) | (6.0-8.0) | (6.0-8.0) |
| ( BH ) max | (KJ/m3) | 24-32 | 32-44 | 52-60 | 60-68 | 68-76 | 68-76 | 76-84 | 80-88 | 88-96 | 88-96 | 88-104 |
| Max. Energy Product | (MGOe) | (3.0-4.0) | (4.0-5.5) | (6.5-7.5) | (7.5-8.5) | (8.5-9.5) | (8.5-9.5) | (9.5-10.5) | (10.0-11.0) | (11.0-12.0) | (11.0-12.0) | (11.0-13.0) |
| μr/Recoil | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | |
| Permeability | (μ H/M) | |||||||||||
| (%/ ºC ) | -0.11 | -0.11 | -0.11 | -0.11 | -0.11 | -0.10 | -0.10 | -0.10 | -0.10 | -0.12 | -0.12 | |
| Tempetrature Coefficient | ||||||||||||
| Tc | (ºC) | 300 | 300 | 300 | 300 | 350 | 350 | 350 | 350 | 350 | 320 | 320 |
| Curie Temperature | ||||||||||||
| (ºC) | 160 | 160 | 160 | 160 | 160 | 180 | 160 | 160 | 160 | 150 | 150 | |
| Max.Operating Temperature | ||||||||||||
| (KA/m) | >1600 | >1600 | >1600 | >1600 | >1600 | >3000 | >1600 | >1600 | >1600 | >1600 | >1600 | |
| Magnetizing Force | (KOe) | >20 | >20 | >20 | >20 | >20 | >25 | >20 | >20 | >20 | >20 | >20 |
| ρ | (g/m3) | 4.5-5.0 | 5.0-5.5 | 5.5-6.0 | 5.8-6.0 | 5.8-6.1 | 5.8-6.1 | 5.8-6.1 | 6.0-6.3 | 6.0-6.3 | 6.0-6.3 | 6.1-6.4 |
| Dendity | ||||||||||||
| HRB | 40-45 | 40-45 | 40-45 | 35-38 | 35-38 | 35-38 | 35-38 | 35-38 | 35-38 | 35-38 | 35-38 | |
| Hardness | ||||||||||||
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