Contact Platform Support
Help CenterOEM Injection Molded Magnet Rotor in PA/PPS With NdFeB, ±0.02mm Precision, No Secondary Machining
Product Spotlights
Related Products
-
Wholesale OEM PA/PPS Injection Molded Magnet Rotor: ±0.02mm Tolerance, Real Mold Protection System for High-Yield SE Asian Motor OrdersNegotiableMOQ: 5000 Pieces -
Automotive Injection Magnet Rotor With PA/PPS Binder, Tolerance ±0.02mm, Ferrite/NdFeB Magnetic Powder OptionNegotiableMOQ: 5000 Pieces
-
±0.02mm Tolerance Automotive PA/PPS Magnet Rotor, Lightweight Design (Density 3.0-5.0 G/cm3) for EV MotorsNegotiableMOQ: 5000 Pieces
-
Precision Injection Molded Magnet Rotor for Automotive: PA/PPS Material, ±0.02mm Tolerance, No Secondary MachiningNegotiableMOQ: 5000 Pieces
-
Custom Automotive PA/PPS Injection Magnet Rotor With ±0.02mm Tolerance, Density 3.0-5.0 G/cm3, 150°C Heat ResistanceNegotiableMOQ: 5000 Pieces
As a leading manufacturer based in Changzhou, Jiangsu, China, Changzhou Hongxinyutai Precision Mold Co., Ltd. specializes in high-precision injection molded magnet rotors. Our OEM Injection Molded Magnet Rotor in PA/PPS with NdFeB offers a reliable solution for applications requiring tight tolerances and consistent magnetic performance. With a factory spanning 1,000–3,000 square meters and a dedicated team of 51–100 experienced professionals, we ensure every rotor meets the strictest quality standards. The key advantage of our product is its ±0.02mm precision and no secondary machining required, which directly reduces your production costs and lead times.
Our rotors are manufactured using advanced injection molding technology that integrates high-grade NdFeB magnetic powder with either PA (Polyamide) or PPS (Polyphenylene Sulfide) as the binder matrix. This combination delivers excellent magnetic properties, thermal stability, and mechanical strength. The elimination of secondary machining (such as grinding or turning) means the rotor achieves its final dimensions directly from the mold, ensuring repeatable accuracy across large volumes. Below we detail the key features, technical specifications, and benefits that make our product a preferred choice for automotive, industrial, and consumer electronics applications.
Key Features & Advantages
- High Precision Dimensional Accuracy (±0.02mm): The injection molding process is optimized to achieve tight tolerances without any post-machining steps. This ensures that each rotor fits perfectly into your assembly, minimizing vibration and improving efficiency.
- No Secondary Machining Required: By eliminating grinding, cutting, or polishing, we reduce production cycle time and lower unit costs. The mold cavity is designed to produce net-shape parts with smooth surfaces and consistent dimensions.
- Robust Material Options – PA or PPS: PA provides excellent toughness and abrasion resistance, while PPS offers superior chemical resistance and high-temperature stability (up to 220°C continuous). Both materials bond strongly with NdFeB powder, preventing delamination.
- High-Performance NdFeB Magnet: Our NdFeB magnetic powder is sourced from reputable suppliers, ensuring high remanence (Br) and coercivity (Hc). The injection molding process aligns magnetic particles to optimize flux density in the desired direction.
- Customizable Magnetization Patterns: We can tailor the magnetization (multipole, radial, axial, etc.) according to your specific motor design. This flexibility allows for optimized torque, speed, and efficiency in your application.
- Lightweight & Compact Design: The one-piece molded rotor replaces traditional assemblies of separate magnets and cores, reducing weight and inertia. This is particularly beneficial for high-speed motors and compact actuators.
- Compliance with TS16969 Quality Standard: Our production facility follows TS16969 (ISO/TS 16949) guidelines, ensuring robust process control, traceability, and continuous improvement. Each rotor undergoes rigorous testing including dimensional inspection, magnetic flux measurement, and visual examination.
Technical Specifications (Typical Values)
| Parameter | Value / Range |
|---|---|
| Outer Diameter | 10 – 150 mm (customizable) |
| Length / Height | 5 – 80 mm (customizable) |
| Dimensional Tolerance | ±0.02 mm (on critical dimensions) |
| Magnetic Material | NdFeB (N35 – N52 grade available) |
| Binder Material | PA6, PA66, PA12, PPS (GF30% optional) |
| Operating Temperature Range | -40°C to +150°C (PA), -40°C to +220°C (PPS) |
| Magnetization Direction | Radial, axial, or multipole (customizable) |
| Surface Finish | As molded, smooth, no flash |
| Certification | TS16969 (IATF 16949 equivalent) |
Benefits for Your Business
- Cost Reduction: Our net-shape molding eliminates expensive secondary operations, saving up to 30% on production costs compared to traditional magnet assembly methods.
- Faster Time-to-Market: With an in-house mold design and manufacturing team, we can quickly produce prototypes and ramp up to mass production. Typical lead time for custom molds is 25–35 days.
- Consistent Quality: Each rotor is produced under strict process control, with statistical process monitoring (SPC) applied to key dimensions. Our QC team performs 100% magnetic testing and dimensional sampling per batch.
- Design Flexibility: We support complex geometries – such as stepped diameters, keyways, grooves, and through-holes – that are difficult to achieve with conventional machining. This allows you to integrate more functions into a single component.
- Long-Term Reliability: The PA/PPS matrix protects the NdFeB particles from corrosion and mechanical shock, ensuring stable magnetic performance over the life of your product.
Why Choose Changzhou Hongxinyutai Precision Mold Co., Ltd.?
Since our establishment in 2017, we have grown to serve customers across North America, South America, Europe, Asia, Africa, and Oceania. Our factory, certified under TS16969, operates advanced injection molding machines and automated magnetic measurement systems. We have shipped millions of rotors to automotive Tier 1 suppliers, industrial pump manufacturers, and appliance makers. Our commitment to quality is reflected in our 0.1% defect rate target and our willingness to provide measurement reports for every shipment. We offer flexible shipping options from ports in Jiangsu, Shanghai, and Shenzhen, ensuring timely delivery worldwide.
We understand that your application demands reliability, precision, and cost-effectiveness. Our OEM Injection Molded Magnet Rotor is designed to meet those demands. We invite you to contact us with your specific requirements – whether it's a custom dimension, a unique magnetization pattern, or a special material blend. Let us help you build a better motor, sensor, or actuator.
Frequently Asked Questions (FAQ)
1. What is the typical lead time for a custom rotor?
Lead time for a new mold is approximately 25–35 days, depending on complexity. Once the mold is approved, production lead time is 15–20 working days for standard orders.
2. Can you provide rotors with a different tolerance than ±0.02mm?
Yes, we can achieve tolerances as tight as ±0.01mm on specific dimensions, but this may require additional mold design considerations. Please consult our engineering team for feasibility.
3. Are the rotors suitable for high-temperature applications (>200°C)?
Our PPS-based rotors can operate continuously at up to 220°C. For higher temperatures, we can also explore other binder materials upon request.
4. Do you offer magnetic simulation or design assistance?
Yes, we provide technical support including magnetic circuit simulation and rotor design optimization. Our engineers can help you choose the best material grade and magnetization pattern.
5. What is the minimum order quantity (MOQ)?
For new mold development, the MOQ is typically 1,000 pieces. For existing standard molds, we can accept as low as 500 pieces. Please contact us to discuss your volume.
6. How do you ensure the magnetic performance consistency?
We use a Helmholtz coil and fluxmeter to measure the magnetic flux of each rotor. Statistical sampling is performed per batch, and we can provide a certificate of analysis upon request.
7. Can the rotor be supplied with a shaft or other insert?
Yes, we can mold the rotor around a metal insert (e.g., steel shaft, brass sleeve) to create a complete sub-assembly. This is a common customization.
8. What shipping methods do you use?
We ship via sea freight (FCL/LCL) from Chinese ports, or by air express for small samples. We can also arrange door-to-door delivery via DHL, FedEx, or UPS.
Send Inquiry to This Supplier
You May Also Like
-
High-Temperature Automotive PA/PPS Magnet Rotor, ±0.02mm Tolerance, Shatter-Proof Construction for NEVsNegotiableMOQ: 5000 Pieces
-
Heavy-Duty Automotive PA/PPS Injection Magnet Rotor: ±0.02mm Tolerance, Mold Protection Mass Production for SE Asian New Energy VehiclesNegotiableMOQ: 5000 Pieces
-
Automotive PA/PPS Injection Magnet Rotor for New Energy Vehicle Motor Applications, ±0.02mm PrecisionNegotiableMOQ: 5000 Pieces
-
Wholesale EV Motor PA/PPS Injection Magnetic Rotor: 150°C Heat Resistance, ±0.02mm Tolerance Custom Automotive Tooling for SE Asia B2BNegotiableMOQ: 5000 Pieces
-
Custom NEV EPS System PA/PPS Magnetic Rotor: Shatter-Proof Ferrite/NdFeB Injection Parts, Robotic Arm Assembly for Asian Auto BrandsNegotiableMOQ: 5000 Pieces
-
OEM PA/PPS NdFeB Magnet Rotor for NEVs: ±0.02mm Precision, Changzhou Factory Lightweight Injection Parts for SE Asia EV Supply ChainsNegotiableMOQ: 5000 Pieces
-
OEM Thin-Wall Annular Plastic Parts: IATF 16949 Certified Snap-Fit Tooling and Robotic Production for SE Asian Supply ChainsNegotiableMOQ: 5000 Pieces
-
OEM Annular Parts Plastic Molding: IATF 16949 Certified Robotic Extraction and CMM Concentricity Testing for SE Asian Supply ChainsNegotiableMOQ: 5000 Pieces
-
OEM Auto Engine Annular Plastic Parts: IATF 16949 Certified Tooling & Robotic Production for SE Asian HVAC Motor Supply ChainsNegotiableMOQ: 5000 Pieces
-
OEM Thin-Wall Annular Plastic Parts: IATF 16949 Certified Creep-Resistant Tooling and Robotic Production for SE Asian Auto ChainsNegotiableMOQ: 5000 Pieces
