Ring Ferrite Magnets Features:
Part No.: HS-FMR
Material: Ferrite/Ceramic magnet
Shape: ring
Grade:Y30,Y25, Y35, Y33, Y40, C5, C8, C1, etc.
Magnetic properties: Hcj,Hcb,BH,Br,BHmax,working temperature
Tolerance: ±2%
Plating : None
Operating Temp(Max).: 80℃ （176℉）
Maximum Br: 3850Guass
Magnetized Direction: Magnetized through thickness Other size and grade are available on request
Application:widely used in sensor,speakers,reed switches,motor,rotor,wind turbines/generators,AC/DC motors,drive motors,servo motors etc
Magnetization directions:by Axial or by radial
Ferrite Ring magnets can be used in a wide range of applications due to their high coercivity and low cost.
Common applications include reed switches, loud speakers, security systems, audio and television and also holding devices such as pot magnets.
These popular magnets offer a medium level of magnetism and a good depth of field.
Ferrite has an excellent resistance to demagnetisation/corrosion, however care must be taken when handling the product due to its brittleness.
| External D | Opposite sex product: D± 2% D ± 0.1mm | D±0.1mm |
| Homosexual products: D±1.5% and D ± 2% | ||
| Inside diameter d | Opposite sex product:d±2% | d±0.1mm |
| Homosexual products:d±1.5%and d±2% | ||
| ThicknessH | H±1.0mm | H±0.1mm |
Ceramic or Ferrite magnets are made from Barium or Strontium Oxide, and Ferric Oxide. Strontium Ferrite’s are a powerful and cost effective option and are available in a wide range of shapes and sizes. Barium Ferrite is notably less powerful than Strontium Ferrite. Ceramic magnets will operate at up to 250˚C before losing their magnetism.
Ferrite divided barium ferrite (BaO · 6Fe2O3) and strontium ferrite (SrO · 6Fe2O3). High resistivity, is a semiconductor type, so a small eddy current losses, the coercive force, not the merits of demagnetization can be effectively applied in the air gap in the magnetic circuit, particularly suitable for small generators and permanent magnet motors.
The major products anisotropic ferrite permanent magnet series. They can be used to make the permanent ignition motors, permanent magnet motors, permanent magnet concentrator, magnetic lifting heads, magnetic thrust bearing, magnetic separator, speakers, microwave devices, magnetic sheet, and hearing aids.
| Model. No. | Dimensions (mm)D*d*T | Model. No. | Dimensions (mm)D*d*T |
| FMR-001 | D8 × d4 × 3 | FMR-002 | D10.2 × d6 × 9 |
| FMR-003 | D12 × d4 × 12 | FMR-004 | D12 × d4 × 24 |
| FMR-005 | D13 × d4.5 × 20 | FMR-006 | D14.6 × d8 × 12 |
| FMR-007 | D15 × d4.5 × 20 | FMR-008 | D15 × d4.5 × 28 |
| FMR-009 | D16 × d7 × 4 | FMR-010 | D18 × d5 × 8 |
| FMR-011 | D18 × d7 × 6 | FMR-012 | D18 × d6 × 24 |
| FMR-013 | D18 × d6 × 40 | FMR-014 | D18.3 × d6 × 32 |
| FMR-015 | D19 × d6 × 30 | FMR-016 | D21 × d7 × 32 |
| FMR-017 | D22 × d8 × 45 | FMR-018 | D23.4 × d11 × 8 |
| FMR-019 | D23.4 × d12 × 9 | FMR-020 | D25 × d8 × 50 |
| FMR-021 | D25.6 × d17 × 20 | FMR-022 | D26 × d10 × 9 |
| FMR-023 | D28 × d8 × 8 | FMR-024 | D30 × d10 × 60 |
| FMR-025 | D32 × d18 × (5-8) | FMR-026 | D35 × d18 × (6-8) |
| FMR-027 | D39 × d22.5 × (7-10) | FMR-028 | D40 × d19 × (6-10) |
| FMR-029 | D40 × d22 × (6-10) | FMR-030 | D45 × d19(22) × (6-10) |
| FMR-031 | D50 × d22 × (6-12) | FMR-032 | D50 × d24 × (6-12) |
| FMR-033 | D55 × d24 × (6-12) | FMR-034 | D55 × d26 × (6-12) |
| FMR-035 | D60 × d24 × (8-16) | FMR-036 | D60 × d30 × (8-16) |
| FMR-037 | D60 × d32 × (8-16) | FMR-038 | D65 × d32 × (6-16) |
| FMR-039 | D70 × d32 × (8-18) | FMR-040 | D70 × d45 × (8-18) |
| FMR-041 | D71.1 × d32.5 × 15 | FMR-042 | D72 × d32 × (8-18) |
| FMR-043 | D75 × d32 × (10-15) | FMR-044 | D75 × d40 × (10-15) |
| FMR-045 | D80 × d32 × (10-20) | FMR-046 | D80 × d40 × (10-20) |
| FMR-047 | D80 × d60 × (10-20) | FMR-048 | D85 × d32 × (8-20) |
| FMR-049 | D85 × d44 × (8-20) | FMR-050 | D85 × d45 × (8-20) |
| FMR-051 | D90 × d32 × (10-18) | FMR-052 | D90 × d35 × (10-18) |
| FMR-053 | D90 × d45 × (10-18) | FMR-054 | D90 × d50 × (10-18) |
| FMR-055 | D100 × d45 × (12-20) | FMR-056 | D100 × d50 × (12-20) |
| FMR-057 | D100 × d60 × (12-20) | FMR-058 | D110 × d60 × (15-20) |
| FMR-059 | D110 × d62 × (15-20) | FMR-060 | D119 × d56 × (14-20) |
| FMR-061 | D119 × d60 × (14-20) | FMR-062 | D116 × d56.8 × (15-20) |
| FMR-063 | D116 × d60 × (15-20) | FMR-064 | D120 × d45 × (12.5-20) |
| FMR-065 | D120 × d60 × (12.5-20) | FMR-066 | D126 × d60 × (12.5-20) |
| FMR-067 | D126 × d65 × (12.5-20) | FMR-068 | D128.3 × d58.8 × (15-20) |
| FMR-069 | D133.3 × d59 × (15-20) | FMR-070 | D135 × d60 × (15-20) |
| FMR-071 | D140 × d62 × (12.5-20) | FMR-072 | D140 × d65 × (12.5-20) |
| FMR-073 | D140 × d75 × (12.5-20) | FMR-074 | D145 × d70 × (20-24) |
| FMR-075 | D145 × d75 × (20-24) | FMR-076 | D156 × d60 × (20-25) |
| FMR-077 | D156 × d80 × (20-25) | FMR-078 | D165 × d86.4 × (15-25) |
| FMR-079 | D169 × d85 × (20-25) | FMR-080 | D180 × d80 × (20-25) |
| FMR-081 | D180 × d85 × (20-25) | FMR-082 | D180 × d95 × (20-25) |
| FMR-083 | D190 × d89 × (20-25) | FMR-084 | D190 × d90 × (20-25) |
| FMR-085 | D200 × d86 × (20-25) | FMR-086 | D211 × d89 × (20-25) |
| FMR-087 | D210 × d110 × (20-25) | FMR-088 | D220 × d110 × (20-25) |
The above size is suitable for customer’s Magnetic Grade, Dimension tolerance: D ± 2%, d ± 1.5%, h ±0.15mm
Sintered Ferrite Magnet Performance and Grade
| Grade | (Br) | (HcB) | (HcJ) | (BH)max | ||||
| mT | KGauss | KA/m | KOe | KA/m | KOe | KJ/m3 | MGOe | |
| Y10T | 200~235 | 2.0~2.35 | 125-160 | 1.57-2.01 | 210-280 | 2.64-3.51 | 6.5-9.5 | 0.8-1.2 |
| Y22H | 310~360 | 3.10~3.60 | 220-250 | 2.76-3.14 | 280-320 | 3.51-4.02 | 20.0-24.0 | 2.5-3.0 |
| Y25 | 360~400 | 3.60~4.00 | 135-170 | 1.70-2.14 | 140-200 | 1.76-2.51 | 22.5-28.0 | 2.8-3.5 |
| Y26H-1 | 360~390 | 3.60~3.90 | 200-250 | 2.51-3.14 | 225-255 | 2.83-3.20 | 23.0-28.0 | 2.9-3.5 |
| Y26H-2 | 360~380 | 3.60~3.80 | 263-288 | 3.30-3.62 | 318-350 | 3.99-4.40 | 24.0-28.0 | 3.0-3.5 |
| Y27H | 350~380 | 3.50~3.80 | 225-240 | 2.83-3.01 | 235-260 | 2.95-3.27 | 25.0-29.0 | 3.1-3.6 |
| Y28 | 370~400 | 3.70~4.00 | 175-210 | 2.20-3.64 | 180-220 | 2.26-2.76 | 26.0-30.0 | 3.3-3.8 |
| Y28H-1 | 380~400 | 3.80~4.00 | 240-260 | 3.01-3.27 | 250-280 | 3.14-3.52 | 27.0-30.0 | 3.4-3.8 |
| Y28H-2 | 360~380 | 3.60~3.80 | 271-295 | 3.40-3.70 | 382-405 | 4.80-5.08 | 26.0-30.0 | 3.3-3.8 |
| Y30H-1 | 380~400 | 3.80~4.00 | 230-275 | 2.89-3.46 | 235-290 | 2.95-3.64 | 27.0-32.5 | 3.4-4.1 |
| Y30H-2 | 395~415 | 3.95~4.15 | 275-300 | 3.45-3.77 | 310-335 | 3.89-4.20 | 27.0-32.0 | 3.4-4.0 |
| Y32 | 400~420 | 4.00~4.20 | 160-190 | 2.01-2.39 | 165-195 | 2.07-2.45 | 30.0-33.5 | 3.8-4.2 |
| Y32H-1 | 400~420 | 4.00~4.20 | 190-230 | 2.39-2.89 | 230-250 | 2.89-3.14 | 31.5-35.0 | 3.9-4.4 |
| Y32H-2 | 400~440 | 4.00~4.40 | 224-240 | 2.81-3.01 | 230-250 | 2.89-3.14 | 31.0-34.0 | 3.9-4.3 |
| Y33 | 410~430 | 4.10~4.30 | 220-250 | 2.76-3.14 | 225-255 | 2.83-3.20 | 31.5-35.0 | 3.9-4.4 |
| Y33H | 410~430 | 4.10~4.30 | 250-270 | 3.14-3.39 | 250-275 | 3.14-3.45 | 31.5-35.0 | 3.9-4.4 |
| Y34 | 420~440 | 4.20~4.40 | 200-230 | 2.51-2.89 | 205-235 | 2.57-2.95 | 32.5-36.0 | 4.1-4.4 |
| Y35 | 430~450 | 4.30~4.50 | 215-239 | 2.70-3.00 | 217-241 | 2.73-3.03 | 33.1-38.2 | 4.1-4.8 |
| Y36 | 430~450 | 4.30~4.50 | 247-271 | 3.10-3.40 | 250-274 | 3.14-3.44 | 35.1-38.3 | 4.4-4.8 |
| Y38 | 440~460 | 4.40~4.60 | 285-305 | 3.58-3.83 | 294-310 | 3.69-3.89 | 36.6-40.6 | 4.6-5.1 |
| Y40 | 440~460 | 4.40~4.60 | 330-354 | 4.15-4.45 | 340-360 | 4.27-4.52 | 37.6-41.8 | 4.7-5.2 |
Inline Magnetic Trap, “T” Traps Magnetic Liquid Filter Separator, Standard Pipeline Magnetic Separator, In-Line Liquid Trap, Magnetic Trap, Hopper Magnets, Magnetic Separator Filter, Liquid Trap Magnets for Separation, Industrial Pipeline Magnet, T-trap magnetic separators made in China supplier Inline Magnetic Trap Item No. HS-OS series The Liquid Pipeline Magnetic Separator, also known as a Magnetic […]
Magnetic Pipeline Separator, “T” Traps Magnetic Liquid Filter Separator, Standard Pipeline Magnetic Separator, Liquid Line Trap Magnet Separator, Magnetic Trap, Hopper Magnets, Magnetic Separator Filter, Liquid Trap Magnets for Separation, Industrial Pipeline Magnet, T-trap magnetic separators made in China supplier Magnetic Pipeline Separator Item No. HSDN series The Liquid Pipeline Magnetic Separator, also known as […]
“T” Traps Magnetic Liquid Filter Separator, Standard Pipeline Magnetic Separator, Liquid Line Trap Magnet Separator, Magnetic Trap, Hopper Magnets, Magnetic Separator Filter, Liquid Trap Magnets for Separation, Industrial Pipeline Magnet, T-trap magnetic separators made in China supplier “T” Traps Magnetic Liquid Filter Separator Item No. HSDN series Cage style “T traps (Pipeline Magnet) T-trap magnetic […]
Cage style T-trap Magnetic Separator, Standard Pipeline Magnetic Separator, Liquid Line Trap Magnet Separator, Magnetic Trap, Hopper Magnets, Magnetic Separator Filter, Liquid Trap Magnets for Separation, Industrial Pipeline Magnet, T-trap magnetic separators made in China supplier Cage style T-trap Magnetic Separator Item No. HSDN series Cage style “T traps (Pipeline Magnet) T-trap magnetic separators are […]
