Grade 35M–50M Sintered Neodymium Magnet for Servo Motors – IATF 16949 Certified
Meta Title: 35M–50M Neodymium Magnet Servo Motors | IATF 16949 Certified
Meta Description: High-energy 35M–50M sintered NdFeB magnets for servo motors. IATF 16949 certified, ±0.05 mm precision, epoxy or Ni-Cu-Ni coating, custom shapes. Same-day quote.
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Product Overview
Deliver higher torque density and lower cogging in compact servo motors with our Grade 35M–50M sintered neodymium magnets. Manufactured in an IATF 16949-certified facility, each magnet meets automotive-grade PPAP, dimensional, and magnetic consistency requirements. Perfect for servo motors, linear actuators, robotic joints, and CNC spindles.
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Key Benefits
• Grade Range 35M–50M – Br 11.7–14.3 kG, (BH)max 35–50 MGOe for maximum torque per volume.
• IATF 16949 Certified – full PPAP support, CPK ≥1.67 on critical dimensions.
• ±0.05 mm Tolerance – press-fit into rotors without secondary machining.
• Thermal Stability 100 °C – optimized for 80 °C continuous servo windings.
• Multi-layer Coating Options – Ni-Cu-Ni, Zn, epoxy, parylene for 500 h salt-spray resistance.
• Custom Arcs & Rings – laser-cut edges, 2–64 pole magnetization.
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Technical Specifications (Schema Table)
| Property |
35M |
42M |
50M |
| Remanence (Br) |
11.7–12.1 kG |
12.9–13.3 kG |
14.0–14.3 kG |
| Coercivity (Hcj) |
≥ 11 kOe |
≥ 12 kOe |
≥ 12 kOe |
| Max Energy (BH)max |
33–36 MGOe |
40–43 MGOe |
48–51 MGOe |
| Max Operating Temp |
100 °C |
100 °C |
100 °C |
| Dimensions |
Blocks ≤ 50 mm, Rings OD ≤ 80 mm, Arcs any angle |
| Tolerance |
±0.05 mm, ±0.1° angles |
| Coatings |
Ni-Cu-Ni, Zn, black epoxy, parylene |
| Certifications |
IATF 16949, ISO 9001, RoHS, REACH |
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Servo Motor Applications
• Permanent-magnet servo motors – high dynamic response.
• Linear actuators & stages – precise positioning, low cogging.
• Robotic joints – compact torque-dense drives.
• CNC & machine-tool spindles – constant power over wide speed range.
