High-Volume Cap Injection Service: 24-Cavity Hot Runner, Hardened S136, Mold Protection & Robotic Extraction, IATF Certified
Product Spotlights
As a dedicated manufacturer from Changzhou Hongxinyutai Precision Mold Co., Ltd., we take pride in delivering high-performance injection molding services tailored for mass production of plastic caps. Our 24-cavity hot runner system combined with hardened S136 steel ensures exceptional durability, precision, and cycle efficiency. With built-in mold protection sensors and robotic extraction, we minimize downtime and guarantee consistent part quality — all backed by our TS16969-certified quality management system.
Whether you need standard bottle caps, flip-top closures, or custom-designed lids, our service is engineered for high-volume runs without compromising on dimensional accuracy or surface finish. We invite you to explore the technical excellence that sets our cap injection service apart.
Key Features & Technical Specifications
- 24-Cavity Hot Runner Mold: Optimized for balanced fill and minimal material waste. The hot runner system eliminates cold runners, reducing cycle time and scrap.
- Hardened S136 Steel Construction: S136 offers excellent corrosion resistance, high hardness (up to 48-52 HRC), and superb polishability — perfect for high-gloss cap surfaces.
- Integrated Mold Protection: Equipped with pressure sensors and cavity monitoring to detect potential damage, preventing costly mold repairs and production interruptions.
- Robotic Extraction: Automated robotic arms handle part removal and sorting, ensuring consistent handling and reducing manual labor risks.
- TS16969 Certified Process: Our manufacturing facilities comply with automotive-grade quality standards, ensuring traceability and control throughout production.
- High-Volume Capability: Designed for cycles as fast as 8–12 seconds per shot, capable of producing over 200,000 caps per day depending on design.
| Parameter | Value |
| Mold Material | Hardened S136 (48-52 HRC) |
| Number of Cavities | 24 |
| Runner Type | Hot Runner (with individual nozzle control) |
| Cycle Time (estimate) | 8–15 seconds (depends on part weight) |
| Mold Protection | Cavity pressure & temperature monitoring |
| Extraction | 6-axis robotic arm with vision system |
| Certification | TS16969 |
Advantages & Customer Benefits
- Lower Cost per Part: The 24-cavity configuration spreads tooling cost over a high output, reducing unit cost significantly for large orders.
- Reduced Waste: Hot runner system eliminates cold runner scrap, while robotic extraction minimizes handling defects.
- Enhanced Mold Life: Hardened S136 and mold protection features result in longer tool life (500,000+ shots with proper maintenance).
- Consistent Quality: Robotic extraction ensures repeatable handling, and mold sensors prevent damage that could cause dimensional drift.
- Fast Time to Market: Our experienced engineering team (51-100 employees) can turn around mold design and sample production within 20–30 working days.
- Global Logistics: Shipment from Jiangsu, Shanghai, or Shenzhen ports gives you flexibility in supply chain routing.
Trust & Reliability – Why Choose Hongxinyutai?
Founded in 2017, Changzhou Hongxinyutai Precision Mold Co., Ltd. has grown into a specialized manufacturer with a 1,000–3,000 m² factory and a team of 51–100 skilled professionals. Our TS16969 certification (automotive-grade quality management) underscores our commitment to rigorous process control. We have served markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East, delivering millions of quality caps each year. Our mold protection and robotic extraction technology have helped clients achieve over 98% OEE in their production lines. We are confident that our high-volume cap injection service will meet your most demanding requirements.
Contact us today for a free mold design review and competitive quotation. Let Hongxinyutai be your trusted partner for precision cap manufacturing.
Frequently Asked Questions (FAQ)
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Q: What materials can be used with this 24-cavity hot runner mold?
A: The mold is optimized for polypropylene (PP), polyethylene (PE), and similar thermoplastic resins commonly used for caps. Other materials can be evaluated upon request. -
Q: How long does it take to produce the first samples?
A: Typically 20–30 working days for mold fabrication and initial sampling, depending on design complexity and workload. -
Q: Does this service include mold design and testing?
A: Yes, we provide full mold design (including hot runner layout, cooling, and ejection) and trial shots to ensure quality before mass production. -
Q: What is the minimum order quantity (MOQ) for this service?
A: For existing molds with 24 cavities, MOQ is usually 50,000–100,000 pieces. For new mold development, please inquire. -
Q: How does mold protection work?
A: Our mold is equipped with sensors that monitor cavity pressure, temperature, and mold opening force. If an anomaly is detected (e.g., stuck part or insufficient fill), the machine automatically stops to prevent damage. -
Q: Can you add more cavities later if I need higher volume?
A: Our mold design is modular; additional cavities can be incorporated in a future mold version. However, 24 cavities is the current standard for optimal balance and maintainability. -
Q: What certifications do you have for quality management?
A: We are certified under TS16969, which aligns with automotive industry standards for quality, traceability, and continuous improvement. -
Q: How do you handle shipping and export documentation?
A: We can arrange FOB/CIF shipments from Jiangsu, Shanghai, or Shenzhen. All necessary export documents (commercial invoice, packing list, bill of lading, certificate of origin) are provided.
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