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Help CenterOEM/ODM Plastic Injection Molded Bobbin, Material PA66+GF40, 1*4 Cavity, German GPM58 Steel, Hot Runner Edge Gate, IATF 16949:2016
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Changzhou Hongxinyutai Precision Mold Co., Ltd. is proud to present our OEM/ODM Plastic Injection Molded Bobbin, engineered with PA66+GF40 material and precision 1×4 cavity tooling. Manufactured using German GPM58 steel and a hot runner edge gate system, this bobbin delivers exceptional dimensional stability, high heat resistance, and consistent cycle performance. With our factory established in 2017 and a dedicated team of 51–100 skilled professionals, we ensure every mold meets the rigorous requirements of IATF 16949:2016 quality management standards.
Our bobbins are designed for demanding applications in automotive sensors, coils, relays, and transformers. The PA66+GF40 compound provides superior mechanical strength and electrical insulation, while the hot runner edge gate minimizes material waste and improves part quality. Whether you need a standard bobbin or a fully customized design, our engineering team can tailor the mold to your exact specifications.
Below you will find a comprehensive breakdown of the product features, technical specifications, and the tangible benefits we bring to your production line.
Product Features & Advantages
- High-Performance Material: PA66 reinforced with 40% glass fiber (PA66+GF40) offers outstanding tensile strength, rigidity, and creep resistance even at elevated temperatures (continuous use up to 230°F / 110°C).
- Precision 1×4 Cavity Mold: Optimized for medium-volume production, the four-cavity setup balances throughput and part consistency. Each cavity is individually gated and cooled for uniform fill and minimal warpage.
- German GPM58 Mold Steel: This premium tool steel provides excellent wear resistance, corrosion resistance, and thermal conductivity. It extends mold life by 30-50% compared to standard P20 steel, reducing your tooling maintenance costs.
- Hot Runner Edge Gate System: The hot runner eliminates cold runner scrap, saves material, and shortens cycle time. Edge gate design allows easy degating and clean part appearance.
- IATF 16949:2016 Certified Production: Our entire manufacturing process, from design to mold trial to mass production, follows the automotive quality management system. This ensures traceability, defect reduction, and reliable delivery.
- Full Customization (OEM/ODM): We can adjust bobbin dimensions, pin configurations, flange thickness, and mounting features. We also support secondary operations like insert molding, ultrasonic welding, and laser marking.
Technical Specifications
| Material | PA66 + 40% Glass Fiber (GF40) |
| Cavity Number | 1 × 4 (four cavities) |
| Mold Steel | German GPM58 (equivalent to 1.2343 ESR) |
| Gate Type | Hot Runner Edge Gate |
| Certification | IATF 16949:2016 |
| Cycle Time (estimated) | 18–25 seconds (depending on part geometry) |
| Mold Life Expectancy | 1,000,000+ cycles under normal maintenance |
| Applicable Standards | UL 94 V-0 (material grade dependent), RoHS, REACH |
Benefits for Your Business:
- Reduced total cost of ownership: The durable GPM58 mold and optimized hot runner reduce scrap rates and mold downtime, lowering your per-part cost.
- Fast time-to-market: With in-house mold design (using CAD/CAE), our lead time for a new bobbin mold is typically 25–35 working days, including first article inspection.
- Consistent quality: Each cavity is balanced by mold flow analysis, so every part meets tight tolerances (±0.05 mm typical).
- Global logistics: We ship from Jiangsu, Shanghai, or Shenzhen ports to North America, Europe, Southeast Asia, and beyond. Our export experience covers over 10 international markets.
Trust & Credibility
Since 2017, Changzhou Hongxinyutai Precision Mold Co., Ltd. has been dedicated to injection mold manufacturing. Our 1,000–3,000 square meter facility houses advanced CNC, EDM, and wire-cutting machines, operated by a team of 51–100 professionals. We have successfully delivered molds to clients in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and across Asia. Our IATF 16949:2016 certification reflects our commitment to automotive-grade quality management. Every bobbin mold undergoes rigorous testing—including dimensional measurement, material verification, and process capability studies (Cpk ≥ 1.33) before shipping.
We understand that choosing the right mold partner is critical. That’s why we offer free design review, mold flow analysis, and a 12-month warranty on tooling workmanship. Contact us today to discuss your bobbin specifications—we will provide a competitive quotation and sample mold trial within 2 weeks.
Frequently Asked Questions (FAQ)
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Q: What is the typical lead time for a custom bobbin mold?
A: For a new mold design with standard complexity (like a 1×4 cavity PA66 bobbin), our lead time is 25–35 working days from design approval to first article sample. Expedited service is available upon request. -
Q: Can you produce bobbins with different pin layouts or mounting holes?
A: Yes, we offer full OEM/ODM customization. Simply provide a 2D/3D drawing or a sample part, and our engineers will adapt the mold design accordingly. -
Q: What is the minimum order quantity (MOQ) for production?
A: For mold purchase, MOQ is 1 set. For ongoing part production, MOQ is typically 5,000 pieces per cavity, but we can negotiate based on your project needs. -
Q: How do you ensure part quality during mass production?
A: We implement SPC (Statistical Process Control), conduct dimensional checks every 2 hours, and perform material verification (e.g., density, tensile) per IATF 16949 requirements. Full inspection reports are provided upon request. -
Q: Is the PA66+GF40 material UL approved?
A: Yes, we use UL-recognized PA66+GF40 compounds (subject to specific grade). The standard flammability rating is UL 94 V-0. We can also source alternative flame-retardant grades if needed. -
Q: What is the warranty on the mold?
A: We offer a 12-month warranty on mold workmanship and materials from the date of shipping. This covers defects in steel, parting lines, and core/cavity wear under normal operating conditions. Hot runner components are covered by the respective supplier warranty. -
Q: Can you handle insert molding or overmolding for bobbins?
A: Absolutely. Our injection molding machines (from 50 to 200 tons) are equipped for insert molding, and we can incorporate metal terminals or other inserts as required. Please share your design for feasibility evaluation. -
Q: How do you ship the mold? What documents do you provide?
A: We export via sea or air from Shanghai, Shenzhen, or Jiangsu ports. The package includes standard mold base, cooling plugs, hot runner controller (optional), and safety accessories. Documents include commercial invoice, packing list, certificate of origin (COO), and inspection reports.
Choose Changzhou Hongxinyutai Precision Mold Co., Ltd. as your trusted partner for high-performance injection molded bobbins. With an experienced team, IATF 16949:2016 system, and proven export record, we deliver quality molds that drive your production success. Request a quote today and let’s build reliable components together.
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