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Help CenterBonded NdFeB Magnetic Rotor Overmolding IATF 16949 Multi Cavity S136 Mold Heavy Asset Rotary Sensor Components Japan
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As a leading manufacturer based in Changzhou, China, Changzhou Hongxinyutai Precision Mold Co., Ltd. specializes in precision injection molding and overmolding solutions. Our Bonded NdFeB Magnetic Rotor Overmolding IATF 16949 Multi Cavity S136 Mold Heavy Asset Rotary Sensor Components represent a pinnacle of engineering for demanding rotary sensor applications. Combining high-performance bonded NdFeB magnetic materials with robust S136 mold steel and multi-cavity efficiency, these components deliver consistent magnetic properties, dimensional accuracy, and long-term reliability critical for heavy asset equipment in Japan and global markets.
Each rotor is produced under strict quality control with TS16969 certification (as per our company records), ensuring traceability and process discipline. The multi-cavity S136 mold design optimizes production throughput while maintaining tight tolerances required for sensor components. Whether you need standard configurations or fully customized designs, our experienced team can adapt the overmolding process to match your specific rotor geometry, magnetization pattern, and assembly requirements.
Key Features & Technical Specifications
- Material: Bonded NdFeB (rare earth magnet) – high magnetic energy product, corrosion resistance, and isotropic properties for consistent sensor output.
- Mold Material: S136 premium stainless steel – excellent wear resistance, high hardness (48-52 HRC), and corrosion resistance for long mold life.
- Multi-Cavity Design: Up to 8 cavities per mold (customizable) – reduces cycle time and unit cost without sacrificing precision.
- Overmolding Process: Thermoplastic or thermoset overmolding available – protects magnet from mechanical stress, moisture, and thermal degradation.
- Application: Rotary sensor components for heavy asset equipment (e.g., industrial motors, automotive sensors, robotics, encoders).
- Certification: Manufactured in a TS16969 certified facility, with full process control and documentation.
- Customization: Dimensions, magnetization patterns (radial, axial, multipole), tolerances, and packaging options available upon request.
| Parameter | Value |
|---|---|
| Magnetic Material | Bonded NdFeB (isotropic, grade N35-N52 equivalent) |
| Mold Steel | S136 (DIN 1.2083, AISI 420) |
| Cavity Count | 4, 6, or 8 (customizable) |
| Overmolding Material | PPS, PEEK, PA66, or LCP (customer specified) |
| Tolerance | ±0.05 mm (typical) |
| Operating Temperature | -40°C to +150°C (depending on overmolding material) |
| Magnetization | Radial, axial, or multipole (customizable) |
Advantages for Your Application
- Consistent Magnetic Performance: Bonded NdFeB offers uniform magnetic properties across all cavities, eliminating batch-to-batch variation in sensor output.
- High Durability: S136 mold provides excellent corrosion resistance and wear performance, resulting in longer mold life and lower maintenance costs.
- Cost-Effective Production: Multi-cavity design reduces per-part cost by up to 30% compared to single-cavity molds, ideal for medium to high volume orders.
- Wide Compatibility: Overmolding materials can be selected to match your thermal, chemical, and mechanical requirements – suitable for automotive, industrial, and heavy asset environments.
- Full Traceability: Each rotor is marked with a unique batch code, and all process parameters are recorded for compliance with TS16969 standards.
Trust & Reliability
Established in 2017, Changzhou Hongxinyutai Precision Mold Co., Ltd. operates a modern factory spanning 1,000–3,000 square meters with a dedicated team of 51–100 employees. We have shipped products to major markets including North America, Europe, Southeast Asia, and Japan, consistently meeting the rigorous quality expectations of the heavy asset and rotary sensor industries. Our TS16969 certification demonstrates our commitment to process control and continuous improvement. We offer flexible shipping from Jiangsu, Shanghai, or Shenzhen ports, and provide responsive technical support for custom mold design, prototyping, and production ramp-up.
Contact us today to discuss your specific bonded NdFeB rotor requirements. Our engineers will work with you to optimize the magnetic circuit, overmolding material, and cavity design for your sensor application. We welcome inquiries for both standard components and fully customized solutions.
Frequently Asked Questions (FAQ)
Q1: What is the typical lead time for a multi-cavity S136 mold for bonded NdFeB rotors?
A: For standard designs, mold fabrication takes approximately 4–6 weeks. For custom molds, lead time ranges from 8–12 weeks, depending on complexity. We can also provide expedited service for urgent requirements.
Q2: Can you supply rotors with different magnetization patterns (e.g., 4-pole, 8-pole)?
A: Yes, we can customize the magnetization pattern according to your sensor specifications. Radial, axial, and multipole patterns are available. Please provide your desired pole count and orientation.
Q3: Do you offer samples before mass production?
A: Absolutely. We can provide samples from a single-cavity test mold or from the first production run. Samples are typically available within 3–4 weeks after mold completion.
Q4: What overmolding materials are compatible with bonded NdFeB magnets?
A: We commonly use PPS, PEEK, PA66, LCP, and PBT. Material selection depends on your operating temperature, chemical exposure, and mechanical requirements. We can also test alternative materials upon request.
Q5: How do you ensure the magnetic strength consistency across multiple cavities?
A: Our process includes in-line magnetic testing for each cavity, using a Helmholtz coil or flux meter. Statistical process control (SPC) is implemented to monitor variation and maintain Cpk > 1.67.
Q6: Is your facility TS16969 certified? Can you provide certificates?
A: Yes, our facility holds TS16969 certification (as per our company records). We can provide a copy of the certificate upon request, along with any customer-specific quality documentation.
Q7: What is the minimum order quantity (MOQ) for bonded NdFeB magnetic rotors?
A: MOQ depends on the mold cavity count and part complexity. Typically, for a multi-cavity mold, the MOQ starts at 10,000 pieces. For special projects, we may negotiate lower quantities.
Q8: Can you help with the design of the magnetic circuit for my rotary sensor?
A: Yes, our engineering team offers design assistance for magnetic circuit optimization. We can simulate the magnetic field distribution and recommend the best rotor geometry, material grade, and overmolding thickness to achieve your target sensor performance.
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