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Help CenterOEM PA66+GF40 Bobbin for Electric Vehicle Motor, Injection Molded Parts With IATF 16949
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Welcome to Changzhou Hongxinyutai Precision Mold Co., Ltd., a professional manufacturer established in 2017 with over 50 skilled employees and a modern factory spanning 1,000-3,000 square meters. We are proud to present our OEM PA66+GF40 Bobbin for Electric Vehicle Motor, injection molded under strict quality control. This bobbin is engineered to meet the demanding requirements of EV traction motors, offering superior mechanical strength, electrical insulation, and dimensional stability. Designed for high-volume production and long-term reliability, our bobbin complies with IATF 16949 standards, ensuring consistent quality across every batch.
Our PA66+GF40 material (Nylon 66 reinforced with 40% glass fiber) provides exceptional heat resistance, low moisture absorption, and excellent creep resistance, making it ideal for the harsh thermal and mechanical environment inside an electric motor. Whether you need a standard design or a fully customized shape, we leverage advanced injection molding capabilities to produce bobbins with tight tolerances, smooth surfaces, and no flash. Every part is inspected to automotive-grade specifications.
Key Features and Technical Specifications
- High Mechanical Strength: With 40% glass fiber reinforcement, the bobbin withstands high winding tension and vibration during motor operation.
- Excellent Thermal Performance: Continuous operating temperature up to 170°C, short-term peak up to 200°C.
- Outstanding Electrical Insulation: High dielectric strength (>20 kV/mm) and high insulation resistance ensure safe isolation of coil windings.
- Dimensional Precision: Typical tolerances of ±0.05 mm on critical dimensions, verified by CMM and optical measuring equipment.
- Customizable Design: We work from your 2D/3D CAD files; options include internal slots, snap-fit features, and wire guide channels.
- IATF 16949 Certified: Our entire production process follows automotive quality management system requirements, including PPAP, FMEA, and control plans.
- Wide Application: Suitable for EV traction motors, auxiliary motors, electric compressors, and other high-voltage components.
| Parameter | Value |
|---|---|
| Material | PA66+40% Glass Fiber (GF40) |
| Tensile Strength | ≥200 MPa (ISO 527) |
| Flexural Modulus | ≥9000 MPa (ISO 178) |
| Heat Deflection Temperature (HDT, 1.8 MPa) | ≥250°C |
| Dielectric Strength | >20 kV/mm (IEC 60243) |
| Insulation Resistance | >10^12 Ω (at 500 V DC) |
| Flammability Rating | UL 94 V-0 (available upon request) |
| Available Colors | Black, natural, custom color (RAL/Pantone) |
| Packaging | Standard export carton or according to customer specification |
Our bobbin is manufactured using advanced injection molding machines with servo-driven clamping and real-time process monitoring. Each batch is tested for material composition (DSC/TGA), dimensional accuracy, and insulation performance. We offer full PPAP documentation, including IMDS and RoHS compliance data, to support your automotive supply chain requirements.
With 51-100 experienced employees and a factory size of 1,000-3,000 square meters, we are capable of producing millions of bobbins per year with consistent quality. Our main markets include North America, South America, Europe, Southeast Asia, and the Middle East, and we have successfully supplied to leading Tier-1 EV component manufacturers. We ship from Jiangsu, Shanghai, or Shenzhen ports, with typical lead times of 20-30 days after approval of samples.
We understand that every EV motor design is unique. That's why we offer complete customization – from material selection (e.g., PBT, PPS, LCP options) to insert molding of metal terminals, and even overmolding for integrated assembly. Our engineering team is ready to collaborate with your R&D to optimize the bobbin for winding efficiency, thermal management, and cost reduction. Contact us today to discuss your project and request free samples for evaluation.
Frequently Asked Questions (FAQ)
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Q1: Does your bobbin meet the IATF 16949 certification requirement?
Yes, our manufacturing facility is IATF 16949 certified. Every production process – from incoming material inspection to final packaging – follows automotive quality standards, including FMEA, control plan, and PPAP. -
Q2: Can you customize the bobbin shape and dimensions according to my drawing?
Absolutely. We specialize in OEM and custom injection molded parts. Send us your 2D/3D CAD file, and our mold engineers will design the tooling accordingly. We can also suggest design improvements for better moldability and performance. -
Q3: What is the minimum order quantity (MOQ) for custom bobbins?
For new tooling, the MOQ is typically 5,000–10,000 pieces per design, depending on complexity. For standard designs without new mold, lower MOQ (e.g., 1,000 pcs) can be arranged. -
Q4: What packing and shipping options do you offer?
We pack bobbins in anti-static plastic bags and export cartons, with custom labeling. Shipping via sea (FOB Jiangsu/Shanghai/Shenzhen) or air (express like DHL/FedEx) is available, based on your urgency and budget. -
Q5: How do you ensure the quality of the bobbins during mass production?
We implement SPC (Statistical Process Control) on key dimensions and perform 100% visual inspection and electrical testing (e.g., dielectric strength) on every bobbin. Random samples are also sent to our lab for thermal and mechanical tests. -
Q6: What is the typical delivery time for a new custom bobbin project?
Mold design & manufacturing takes about 30-45 days. First article samples (FAI) are provided within 7 days after mold completion. Mass production starts after customer approval, with 20-30 days lead time for standard orders. -
Q7: Do you offer any material alternatives besides PA66+GF40?
Yes, we can mold bobbins with various thermoplastics like PBT, PPS, LCP, or even PA46 depending on your thermal and chemical requirements. Our technical team will recommend the best material based on your motor design. -
Q8: Can you provide free samples for testing before placing an order?
Yes, we can provide 2-5 free samples for existing mold designs. For custom parts, sample costs may apply (deducted from production order). Just tell us your specifications and we will arrange accordingly.
Since 2017, Changzhou Hongxinyutai has built a reputation for delivering high-precision injection molded parts to global automotive and EV clients. Our dedicated team of technicians and engineers, combined with a modern factory, ensures that every bobbin meets the highest standards of quality and performance. Partner with us to secure a reliable supply chain for your electric vehicle motor components. Contact us now to request a quote, discuss your design, or arrange a factory tour!
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