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Rotor Injection Molded Magnets

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Rotor Injection Molded Magnets

Rotor Injection Molded Magnets: High-Performance Magnetic Solutions for Efficient Rotary Systems

Rotor Injection Molded Magnets

Rotor injection molded magnets are specially designed to deliver precise and powerful magnetic fields in rotary applications, enhancing the performance and efficiency of motors and other rotating machinery. Manufactured by combining high-performance magnetic powders with polymer binders through an injection molding process, these magnets allow for complex shapes, tight tolerances, and custom magnetization patterns. Ideal for use in electric motors, generators, and automotive systems, rotor injection molded magnets ensure smooth and consistent operation even under demanding conditions.

 

At ZOYN, we specialize in producing high-quality rotor injection molded magnets tailored to meet the unique needs of industries such as automotive, renewable energy, industrial automation, and robotics. With advanced manufacturing capabilities, customizable configurations, and durable materials, our magnets provide the strength, precision, and reliability needed for efficient rotary systems.

Key Features of Rotor Injection Molded Magnets

 

1. Customized Magnetization Patterns

Can be magnetized in axial, radial, or multipole configurations, allowing for precise control of magnetic fields for specific motor requirements.

2. High Precision and Tight Tolerances

Injection molding allows for exact shaping, resulting in magnets that meet tight tolerances and fit seamlessly within rotor assemblies.

3. Lightweight and Compact Design

The polymer-binder composite structure reduces weight without sacrificing strength, making these magnets ideal for compact, high-speed applications.

4. Corrosion Resistance

Naturally resistant to moisture and rust, with optional protective coatings (such as epoxy or nickel) available for additional durability in challenging environments.

5. Temperature Stability

Available in specialized grades for high-temperature applications, ensuring reliable performance in demanding conditions.

6. Cost-Effective Production

The injection molding process enables economical manufacturing, especially for intricate designs and high-volume orders.

7. Enhanced Magnetic Performance

Delivers consistent magnetic fields and high magnetic strength, essential for efficient and stable rotary operation.

Properties of Injection-Molded Ferrites

 

  Pa12 Series
Grade TP-A19 TP-A24 TP-A25 TP-F26CB TP-A26NK TP-F26S TP-T27D TP-A27E (PaA) TP-A27E (P2A) ND2 TP-A27E (SD) TP-A27ES TPA-202 TP-A27E TP-A27EC TP-A27E(T) TP-A27NK TP-NK2 TP-A27P

Magnetic

Properties

TODA

NO.610-1

Residual Magnetic Beam Density Br mT (G) 207 (2065) 260 (2596) 278 (2780) 277 (2770) 287 (2871) 282 (2820) 290 (2900) 288 (2880) 289 (2887) 288 (2880) 289 (2890) 293 (2930) 289 (2890) 293 (2932) 294 (2940) 298 (2980) 304 (3042) 308 (3080)
Coercive Force bHc kA/m (Oe) 160 (2003) 185 (2328) 190 (2386) 186 (2341) 189 (2370) 188 (2353) 191 (2400) 191 (2400) 191 (2402) 187 (2350) 194 (2430) 192 (2410) 190 (2390) 187 (2335) 191 (2400) 197 (2480) 185 (2322) 183 (2300)
Intrinsic Coercivity iHc kA/m (Oe) 248 (3118) 242 (3038) 238 (2985) 233 (2926) 231 (2907) 228 (2870) 230 (2890) 239 (3000) 232 (2912) 229 (2880) 234 (2940) 231 (2900) 229 (2880) 228 (2852) 231 (2900) 235 (2950) 216 (2711) 211 (2650)
Maximum Magnetic Energy Product (BH) max

kJ/m3 

(MGOe)

8.5 (1.058) 13.4 (1.672) 15.2 (1.902) 15.2 (1.896) 16.3 (2.038) 15.6 (1.960) 16.6 (2.080) 16.4 (2.060) 16.5 (2.062) 16.3 (2.050) 16.5 (2.070) 16.9 (2.130) 16.4 (2.060) 16.8 (2.109) 17.0 (2.140) 17.4 (2.185) 18.2 (2.275) 18.8 (2.35)

Physical

Properties

ASTM-D792 Molding Density g/cm3 2.90 3.40 3.57 3.55 3.63 3.63 3.64 3.65 3.65 3.68 3.68 3.68 3.69 3.70 3.70 3.74 3.78 3.82
ASTM-D1238 Fluidity MI g/10min 380
270°C/ 10kg

163
270°C/ 10kg

34
270°C/ 10kg

70
270°C/ 10kg

150
270°C/ 10kg
65
270°C/ 10kg
100
270°C/ 10kg
60
270°C/ 10kg
60
270°C/ 10kg
65
270°C/ 10kg
40
270°C/ 10kg
60
270°C/ 10kg
65
270°C/ 10kg
63
270°C/ 10kg
58
270°C/ 10kg
85
270°C/ 10kg
75
270°C/ 10kg
76
270°C/ 10kg
Condition
ASTM-D790 Bending Strength MPa 119 100 122 112 103 115 96 111 110 92 104 113 92 92 105 99 114 110
Flexural Modulus GPa 6.9 9.7 12.3 12.1 12.0 14.5 10.9 11.5 10.6 11.3 11.3 13.3 11.3 11.2 12.5 15.1 14.3 19.3
ASTM-D638 Tensile Strength MPa 63 54 66 61 54 59 49 51 52 46 54 58 46 45 50 55 52 67
Stretch % 6.0 3.7 4.3 4.4 3.4 3.9 4.2 5.1 4.1 5.3 4.9 4.0 5.3 4.8 4.0 2.5 2.8 2.7
ASTM-D256 1ZOD Impact Strength kJ/m2 NB 20.9 23.1 19.9 12.3 15.6 16.5 21.4 23.1 20.4 20.1 17.6 20.4 18.0 21.6 12.1 12.3 11.0
Toda Skrinkage % 1.05 0.74 0.68 0.55 0.76 0.66 0.57 0.70 0.70 0.72 0.69 0.47 0.72 0.74 0.70 0.59 0.60 0.48

 

Process Flow

Rotor Injection Molded Magnets

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