Ferrite powder is mixed into a compound, and then injection molded in the same way as plastic. The injection molding process allows for molding directly on, in, or over other components thereby reducing secondary processing costs. This is called "insert" or "over-molding". Injection molded magnets can be produced from very simple forms to quite complex shapes in sizes up 100 g. Further processing is rarely required, but if necessary, this can be achieved using conventional tools.
Although tooling for this manufacturing process is usually very costly, the unit price is very low. Parts produced through this process can have very intricate shapes and tight tolerances. Injection molded ferrite properties are either lower than, or about the same as grade 1 Ferrite. Multi-Pole magnetization is easily achievable.
Product Availibility Guide
Part Magnetic Max. Max. Max. Max. Max.
No. Material Polymer Density Br Hc Hci BHmax Temp.
g/cc Gauss Oe Oe MGOe oC
2039 SrFerrite Nylon 6 3.80 3,070 2,570 3,070 2.35 160
2040 SrFerrite Nylon 12 3.75 3,060 2,540 3,190 2.34 150
2046 SrFerrite Nylon 6 3.58 2,890 2,550 3,150 2.11 160
2048 SrFerrite Nylon 6 3.55 2,880 2,510 3,210 1.99 160
2049 SrFerrite Nylon 12 3.21 2,460 2,340 3,600 1.52 150
2051 SrFerrite Nylon 6 3.76 3,130 2,590 3,140 2.41 160
2052 SrFerrite PPS 3.65 2,880 2,530 3,320 2.05 180
2070 SrFerrite Nylon 12 3.63 2,940 2,520 3,190 2.17 150
2071 SrFerrite Nylon 12 3.53 2,810 2,680 4,020 2.05 150
2101 SmCo Nylon 12 5.60 6,880 6,000 11,60011.28 150
2103 SmCo Nylon 6 5.50 6,380 6,000 28,000 9.72 160
2202 NdFeB Polyamide 4.85 5,8004,320 10,000 7.15 125
2204 NdFeB Nylon 12 5.20 5,3904,920 13,200 5.94 150
2206 NdFeB PPS 4.40 4,4004,000 10,500 4.26 150
2212 NdFeB Nylon 12 4.90 5,7204,320 9,000 6.63 150
2213 NdFeB Nylon 12 5.20 5,8905,000 10,000 7.44 150
2214 NdFeB Nylon 12/Polyamide 4.65 4,8004,200 9,840 5.56 125
2216 NdFeB Nylon 12 5.16 6,1104,800 9,000 6.63 125
2217 NdFeB PPS 4.90 4,8204,800 18,000 5.17 180
2218 NdFeB Nylon 12 5.20 5,8904,800 9,600 7.44 150
2225 NdFeB Special plastic 5.70 6,8005,800 10,200 9.40 150
2409 SrFerrite/NdFeB Nylon 12/Polyamide 4.15 4,6202,880 4,320 3.43 125
2413 SrFerrite/NdFeB Nylon 12/Polyamide 4.72 5,2002,640 4,400 4.77 125
2414 SrFerrite/NdFeB Nylon 12 4.85 5,3004,100 9,100 5.95 150
2415 SrFerrite/NdFeB Nylon 12 4.00 3,8702,830 4,220 3.03 150
2416 SrFerrite/NdFeB Nylon 12 4.97 5,4004,310 9,400 6.31 150
2417 SrFerrite/NdFeB Nylon 6 3.85 2,200 1,740 2,640 1.01 150
2521 SrFerrite Nylon 12 3.65 2,8102,680 4,020 2.05 150
2534 SrFerrite Nylon 6 3.53 2,7302,250 3,300 1.89 150
2535 SrFerrite Nylon12/Polyamide 3.65 2,8402,650 4,000 1.96 125
2560 SrFerrite Polyamide 3.65 2,8402,650 4,000 1.96 125
No. Material Polymer Density Br Hc Hci BHmax Temp.
g/cc Gauss Oe Oe MGOe oC
2039 SrFerrite Nylon 6 3.80 3,070 2,570 3,070 2.35 160
2040 SrFerrite Nylon 12 3.75 3,060 2,540 3,190 2.34 150
2046 SrFerrite Nylon 6 3.58 2,890 2,550 3,150 2.11 160
2048 SrFerrite Nylon 6 3.55 2,880 2,510 3,210 1.99 160
2049 SrFerrite Nylon 12 3.21 2,460 2,340 3,600 1.52 150
2051 SrFerrite Nylon 6 3.76 3,130 2,590 3,140 2.41 160
2052 SrFerrite PPS 3.65 2,880 2,530 3,320 2.05 180
2070 SrFerrite Nylon 12 3.63 2,940 2,520 3,190 2.17 150
2071 SrFerrite Nylon 12 3.53 2,810 2,680 4,020 2.05 150
2101 SmCo Nylon 12 5.60 6,880 6,000 11,60011.28 150
2103 SmCo Nylon 6 5.50 6,380 6,000 28,000 9.72 160
2202 NdFeB Polyamide 4.85 5,8004,320 10,000 7.15 125
2204 NdFeB Nylon 12 5.20 5,3904,920 13,200 5.94 150
2206 NdFeB PPS 4.40 4,4004,000 10,500 4.26 150
2212 NdFeB Nylon 12 4.90 5,7204,320 9,000 6.63 150
2213 NdFeB Nylon 12 5.20 5,8905,000 10,000 7.44 150
2214 NdFeB Nylon 12/Polyamide 4.65 4,8004,200 9,840 5.56 125
2216 NdFeB Nylon 12 5.16 6,1104,800 9,000 6.63 125
2217 NdFeB PPS 4.90 4,8204,800 18,000 5.17 180
2218 NdFeB Nylon 12 5.20 5,8904,800 9,600 7.44 150
2225 NdFeB Special plastic 5.70 6,8005,800 10,200 9.40 150
2409 SrFerrite/NdFeB Nylon 12/Polyamide 4.15 4,6202,880 4,320 3.43 125
2413 SrFerrite/NdFeB Nylon 12/Polyamide 4.72 5,2002,640 4,400 4.77 125
2414 SrFerrite/NdFeB Nylon 12 4.85 5,3004,100 9,100 5.95 150
2415 SrFerrite/NdFeB Nylon 12 4.00 3,8702,830 4,220 3.03 150
2416 SrFerrite/NdFeB Nylon 12 4.97 5,4004,310 9,400 6.31 150
2417 SrFerrite/NdFeB Nylon 6 3.85 2,200 1,740 2,640 1.01 150
2521 SrFerrite Nylon 12 3.65 2,8102,680 4,020 2.05 150
2534 SrFerrite Nylon 6 3.53 2,7302,250 3,300 1.89 150
2535 SrFerrite Nylon12/Polyamide 3.65 2,8402,650 4,000 1.96 125
2560 SrFerrite Polyamide 3.65 2,8402,650 4,000 1.96 125
