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Help CenterInjection Molded PA/PPS NdFeB Magnet Rotor for Motor Assembly, ±0.02mm Tolerance, High Yield Mass Production
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Changzhou Hongxinyutai Precision Mold Co., Ltd. has been a trusted manufacturer of precision injection molded components since 2017. Our Injection Molded PA/PPS NdFeB Magnet Rotor is engineered for high-performance motor assemblies, delivering consistent ±0.02mm tolerance and exceptional magnetic properties. By combining advanced injection molding techniques with high-grade NdFeB magnets, we offer a rotor that ensures high yield mass production without compromising on quality or precision. This product is ideal for applications demanding reliable magnetic flux, dimensional stability, and cost efficiency.
Our PA/PPS composite matrix provides excellent thermal and chemical resistance, while the NdFeB magnets deliver strong magnetic field strength. The injection molding process allows for complex geometries and tight tolerances, reducing assembly time and improving motor performance. Whether you need rotors for automotive, consumer electronics, or industrial motors, our solution is built to meet your exact specifications.
Key Features & Technical Specifications
- High Precision Tolerance: ±0.02mm ensures consistent magnetic gap and reduces vibration, leading to smoother motor operation.
- Material Strength: PA (Nylon) or PPS (Polyphenylene Sulfide) matrix offers excellent resistance to heat, chemicals, and moisture.
- Magnetic Performance: NdFeB magnets (customizable grades N35–N52) provide high coercivity and energy product.
- High Yield Production: Optimized injection molding process ensures >98% yield rate, minimizing waste and cost.
- Mass Production Capability: Our factory (1,000–3,000 sqm) with 51–100 skilled employees can handle large-volume orders efficiently.
| Parameter | Value |
|---|---|
| Material | PA6/PA66 or PPS + NdFeB |
| Tolerance | ±0.02mm |
| Magnet Grade | N35–N52 (customizable) |
| Max Operating Temperature | 180°C (PPS) / 120°C (PA) |
| Yield Rate | ≥98% |
| Production Method | Injection Molding |
| Application | Motor Assembly (Automotive, Appliance, Industrial) |
Our injection molding process ensures that each rotor is free from voids and has uniform magnetic distribution. The PA/PPS matrix protects the magnet from corrosion and mechanical stress, increasing the rotor’s lifespan. With ±0.02mm tolerance, you can achieve better motor efficiency and reduced noise. This product is particularly suitable for brushless DC motors, stepper motors, and servo motors used in electric vehicles, HVAC, and robotics.
We understand that every motor design has unique requirements. That’s why we offer customized solutions including different magnet shapes, magnetization patterns, and housing materials. Our engineering team can work with you to optimize the rotor for your specific application. All products are manufactured under TS16969 quality management system, ensuring traceability and consistency.
Trust & Capability
With a factory spanning 1,000–3,000 square meters and a dedicated team of 51–100 employees, Changzhou Hongxinyutai Precision Mold Co., Ltd. has the capacity to fulfill large orders on time. We have exported to markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, East Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, and the domestic market. Our port of shipment options include Jiangsu, Shanghai, and Shenzhen, providing flexible logistics. We are committed to delivering high-quality injection molded magnet rotors that meet your exact specifications. Contact us today to discuss your project and experience the reliability of our high-yield mass production.
Frequently Asked Questions
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Q: What is the typical lead time for mass production?
A: For standard designs, lead time is 4–6 weeks from order confirmation. Custom molds may require additional 2–3 weeks. -
Q: Can you provide samples for testing?
A: Yes, we offer samples for evaluation. Please contact us with your specifications, and we will quote accordingly. -
Q: Is the ±0.02mm tolerance guaranteed for all dimensions?
A: Yes, our injection molding process ensures critical dimensions are within ±0.02mm. Non-critical features may have looser tolerances as per your drawing. -
Q: What materials are available besides PA and PPS?
A: We can also use materials like LCP, PEEK, or other engineering plastics upon request. The magnet grade can be customized as well. -
Q: How do you control the quality of the NdFeB magnets?
A: All magnets are sourced from certified suppliers and undergo magnetic flux testing, dimensional inspection, and demagnetization curve verification. -
Q: Do you support custom magnetization patterns?
A: Yes, we can provide radial, axial, multipole, or other magnetization patterns based on your motor design. -
Q: What is the minimum order quantity (MOQ)?
A: MOQ for standard rotors is 5,000 pieces. For customized products, please discuss with our sales team. -
Q: Is your production process environmentally friendly?
A: We comply with all local environmental regulations and use recyclable materials where possible. Our processes are RoHS compliant.
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