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Help CenterHigh-Precision PA6+GF30 Injection Molded Auto Transmission Parts, Hardened S136 Mold, 1*4 Cavities, 300K Shots, Hot Runner, Glossy Finish, IATF 16949
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As a professional manufacturer based in Changzhou, Jiangsu, Changzhou Hongxinyutai Precision Mold Co., Ltd. specializes in providing high-precision injection molded components for the automotive industry. Our High-Precision PA6+GF30 Injection Molded Auto Transmission Parts are engineered using advanced molding technology and strict quality control to meet the demanding requirements of modern transmission systems. With a factory spanning over 1,000 to 3,000 square meters and a dedicated team of 51-100 employees, we deliver consistent, reliable production for global clients.
This product features a hardened S136 mold with a 1x4 cavity configuration, offering a balance of productivity and precision. The hot runner system ensures uniform melt flow and reduces cycle time, while the glossy finish meets cosmetic standards for visible under-hood components. Backed by IATF 16949 certification, every part is produced under a robust quality management system, guaranteeing traceability and performance. Below we detail the technical specifications, advantages, and benefits that make this solution ideal for your transmission assembly needs.
Product Features & Technical Specifications
- Material Excellence: PA6+GF30 (Nylon 6 reinforced with 30% glass fiber) provides high tensile strength, excellent creep resistance, and dimensional stability under high temperatures (up to 120°C continuous).
- Mold Construction: Hardened S136 stainless steel (HRC 48-52) ensures long-term cavity integrity and corrosion resistance, extending the mold service life to 300,000+ shots with minimal maintenance.
- Multi-Cavity Efficiency: The 1x4 cavity layout boosts production output by 300% compared to single-cavity tools, reducing per-part cost while maintaining ±0.02mm tolerance across cavities.
- Hot Runner System: Valve-gate hot runner (optional) eliminates cold runner waste, reduces cycle time by 20-30%, and allows precise gate vestige control for aesthetic parts.
- Glossy Surface Finish: SPI A-2 mold finish delivers a mirror-like gloss (Ra ≤ 0.02µm) suitable for applications where appearance matters, such as transmission housing covers or valve bodies.
- Quality Compliance: IATF 16949 certified process ensures PPAP, SPC, and MSA documentation; each batch is inspected with CMM and functional gauges.
- Customizable Options: Available with insert molding, thread inserts, or heat-staked brass inserts per customer drawing; secondary operations like laser marking or ultrasonic welding can be arranged.
Key Technical Parameters (Typical)
| Parameter | Value |
| Mold Base | LKM / HASCO standard (or custom) |
| Cavity Hardness | HRC 48-52 |
| Gate Type | Valve gate hot runner (optional) |
| Cycle Time | Approx. 25-35 seconds (depending on part geometry) |
| Shrinkage Rate | 0.3% - 0.6% (PA6+GF30) |
| Packaging | Bubble wrap + carton / pallet (customer specific) |
| Lead Time | Sample: 20-25 working days; Mass production: 15-30 days after approval |
Why Choose Changzhou Hongxinyutai?
Established in 2017, our company has grown into a reliable supplier for automotive OEMs and Tier 1 suppliers across North America, Europe, Southeast Asia, and domestic markets. With a factory area of 1,000-3,000 m² and an experienced team of 51-100 employees, we combine skilled craftsmanship with modern injection molding machines (80T to 650T). We have successfully delivered over 500+ mold projects for transmission components, including planetary gear carriers, shift forks, and valve body covers. Our IATF 16949 certified quality system ensures that every shipment meets strict dimensional and functional requirements. We offer competitive pricing with flexible payment terms (T/T, L/C) and ship from Jiangsu, Shanghai, or Shenzhen ports. Contact us today for a free mold flow analysis or quotation tailored to your project.
Frequently Asked Questions (FAQ)
Q1: What is the minimum order quantity (MOQ) for this auto transmission part?
A: Generally our MOQ is 1 mold set with trial samples. For mass production, MOQ is 10,000 pcs per order, but can be negotiated for initial projects.
Q2: Can you provide PPAP documents (Level 3) with the first shipment?
A: Yes, we provide PPAP Level 3 documentation, including control plan, FMEA, MSA, and material certifications as part of our IATF 16949 system.
Q3: How do you ensure dimensional accuracy across multiple cavities?
A: We use EDM and high-speed CNC machining for cavity inserts, followed by CMM inspection (Zeiss) to verify ±0.02mm tolerance; hot runner balance is validated with short-shot tests.
Q4: What is the expected mold life for 1x4 cavity S136 mold?
A: Under normal maintenance, the hardened S136 mold can achieve at least 300,000 shots. With proper cooling and reduced cycle time, it may exceed 500,000 shots.
Q5: Can the glossy finish be customized to different gloss levels?
A: Yes, we can achieve from high gloss (SPI A-1) to matte (SPI B-2) by adjusting mold polish. Please specify your desired RA value.
Q6: Do you offer sampling before mass production?
A: Absolutely. After mold design approval, we provide 50-200 free samples (buyer pays shipping) for dimensional and functional testing. Full production only after sample sign-off.
Q7: What raw material suppliers do you use for PA6+GF30?
A: We use qualified brands like BASF, DuPont, Sabic, or equivalent as per customer requirement. All materials come with REACH/RoHS compliance certification.
Q8: How do you handle part packaging to prevent damage during transport?
A: Each part is individually wrapped with anti-static foam or bubble bag, then packed in strong export cartons. Palletized with stretch film and plywood pallets for container shipping.
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