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Help CenterPA+GF30 Smart Lock Precision Plastic Parts 1x4 Hot Runner S136 Steel 3M Shots CMM Inspected IATF 16949 Certified
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Changzhou Hongxinyutai Precision Mold Co., Ltd. (established in 2017) is a specialized manufacturer of precision injection molded parts with a factory area of 1,000–3,000 square meters and a team of 51–100 skilled employees. We are proud to present our PA+GF30 Smart Lock Precision Plastic Parts in a 1x4 hot runner configuration, using premium S136 steel mold with a proven 3 million shot capability. Each part is CMM inspected to ensure dimensional accuracy, and our quality management system is IATF 16949 certified. These components are engineered for demanding smart lock applications where consistency, durability, and tight tolerances are non-negotiable.
Our hot runner system delivers uniform melt flow and reduces cycle time, while the S136 steel mold provides excellent corrosion resistance and wear performance over long production runs. The use of PA+GF30 (Nylon 30% Glass Fiber) offers superior mechanical strength, heat resistance, and dimensional stability, making these parts ideal for the internal mechanism of electronic smart locks. Every shipment undergoes CMM inspection to guarantee compliance with your specifications, and we support custom modifications including insert installation, ultrasonic welding, and surface finishing.
Key Features & Technical Specifications
| Feature | Specification / Benefit |
| Material | PA6 or PA66 + 30% glass fiber – excellent tensile strength, low creep, good heat deflection |
| Mold Steel | S136 (440C) – high hardness, excellent polishability, corrosion resistant |
| Runner System | 1x4 hot runner – balanced filling, no runner waste, reduced cycle time |
| Mold Life | 3,000,000+ shots proven – stable production for high-volume orders |
| Inspection | 100% CMM inspection on critical dimensions – repeatability |
| Certification | IATF 16949 (TS16969) – automotive-grade quality management system |
| Applications | Smart lock inner components, latch mechanisms, gear housings, structural supports |
Advantages That Benefit Your Business
- Consistent Quality: Hot runner technology paired with S136 steel minimizes part-to-part variation, ensuring every component meets your spec.
- Long-Term Cost Efficiency: With 3 million shots mold life, you avoid frequent mold replacement and downtime.
- High Precision: CMM inspection guarantees tolerances as tight as ±0.02mm, critical for smart lock assembly.
- Material Performance: PA+GF30 offers excellent dimensional stability even under temperature and humidity changes.
- Scalable Production: Our 1,000–3,000 sqm facility and 51–100 experienced staff can handle large volumes with flexible lead times.
- Global Reach: We ship from Jiangsu, Shanghai, and Shenzhen ports to markets across North America, Europe, Asia, and more.
In addition to the standard 1x4 hot runner layout, we offer customization options such as multiple cavity designs, hardened tool steel inserts, and surface treatments (e.g., nitriding, TiN coating) to further extend mold life. Our engineering team can assist in optimizing gate location and cooling channels for your specific part geometry. We also provide PPAP Level 3 documentation upon request, ensuring full traceability and compliance with automotive quality standards.
Trust & Reliability
Since 2017, Changzhou Hongxinyutai Precision Mold Co., Ltd. has been dedicated to precision injection molding. Our factory is IATF 16949 certified (TS16969), which means we operate under a stringent quality system designed for the automotive industry – but equally applicable to high‑reliability smart lock components. We have delivered millions of parts to customers in North America, Europe, Southeast Asia, and other regions. Our commitment to quality is reflected in our 3D CMM inspection reports that accompany every shipment. We also offer 24‑hour technical support and rapid prototyping services to accelerate your product development. Contact us today to request a quote or discuss your custom requirements – we are ready to be your long‑term partner in precision plastic parts.
Frequently Asked Questions
Q1: What is PA+GF30 and why is it used for smart lock parts?
PA+GF30 is a nylon (polyamide) reinforced with 30% glass fiber. It offers high tensile strength, excellent stiffness, low moisture absorption, and good dimensional stability, making it ideal for precision components in smart locks that require tight tolerances and long-term reliability.
Q2: Can you produce parts with different glass fiber percentages?
Yes, we can customize the material formulation. Common options include PA+GF20, PA+GF30, PA+GF40, and also carbon fiber reinforced grades. Please specify your requirements.
Q3: What is the typical lead time for a new mold and first samples?
For a 1x4 hot runner mold like this, the typical lead time is 4–6 weeks for mold fabrication and 2–3 weeks for sample delivery after mold completion. We can expedite based on your schedule.
Q4: Do you provide CMM inspection reports for each batch?
Absolutely. We perform CMM inspection on critical dimensions for every production run. A full inspection report (including CPK data) is available upon request, typically at no extra cost.
Q5: Is the mold made of S136 steel, and what is its hardness?
Yes, the mold cavity and core are made of S136 steel, hardened to HRC 48–52. This provides excellent wear resistance and corrosion resistance, suitable for high-volume production (up to 3 million shots).
Q6: What is the minimum order quantity (MOQ) for these parts?
Our standard MOQ is 10,000 pieces per order. However, for initial sampling or small projects, we can accommodate lower quantities at a higher unit price. Please contact our sales team for details.
Q7: Do you offer any surface finish options like ultrasonic welding or pad printing?
Yes, we provide secondary operations including ultrasonic welding, hot stamping, pad printing, laser marking, and insert molding. Please specify your requirements during quotation.
Q8: How do you ensure the quality of parts shipped to overseas customers?
We follow a strict quality control process: incoming material inspection, in-process monitoring, final CMM inspection, and functional testing. We also offer PPAP Level 3 documentation and can arrange third-party inspection before shipment. Our IATF 16949 system ensures traceability and continuous improvement.
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