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Help CenterPrecision Injection Mold for Two-Piece Bottle Caps, PP/PE, 1x16 Cavities, Hot Runner, S136 Steel, 300K Shots, Robotic Arm Collection Ready
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Changzhou Hongxinyutai Precision Mold Co., Ltd. has been a dedicated manufacturer of high-precision molds since 2017. Our Precision Injection Mold for Two-Piece Bottle Caps is engineered to deliver exceptional dimensional accuracy and repeatable performance in high-volume production. Designed for PP/PE materials, this mold features a 1x16 hot runner system and is constructed from S136 stainless steel to ensure long service life. With a robust design rated for 300,000 shots and ready for robotic arm collection, this mold offers a reliable solution for beverage and packaging cap manufacturers seeking efficiency and quality.
Key Features & Specifications
- 16-Cavity Hot Runner System: Balanced melt flow ensures uniform filling and minimal cycle time, reducing waste and energy consumption.
- S136 Steel Construction: High-grade stainless steel provides excellent corrosion resistance and wear characteristics, extending mold life beyond 300,000 cycles.
- Two-Piece Cap Design: The mold is specifically optimized for two-piece bottle caps (e.g., outer shell and inner seal), supporting complex geometries and tight tolerances.
- Robotic Arm Ready: Integrated features such as ejector pins and parting lines are designed to work seamlessly with standard robotic arms for automated take-out, increasing production efficiency.
- 300K Shots Rated: Every component is manufactured to withstand at least 300,000 injection cycles without significant wear, backed by our engineering validation.
- PP/PE Compatibility: The hot runner nozzle tips and cavity finish are tailored for polypropylene and polyethylene, common materials for caps.
Technical Parameters
| Parameter | Value |
|---|---|
| Cavity Number | 16 |
| Runner System | Hot runner with individual gate control (optional) |
| Mold Steel | S136 (hardened and tempered) |
| Recommended Material | PP (homopolymer/random) or PE (HDPE/LDPE) |
| Design Life | 300,000 shots (under normal conditions) |
| Mold Base | Standard mold base (customizable) |
| Cooling System | Optimized water channels with turbulent flow |
| Robotic Arm Interface | Ejector stroke, safety clearance, and part orientation designed for standard 6-axis robots |
Advantages for Your Production
- Reduced Cycle Time: The hot runner eliminates cold runner waste and speeds up cooling, achieving cycle times as low as 8–12 seconds for typical cap designs.
- Consistent Quality: Precision-machined cavities with
- Low Maintenance: S136 steel resists wear and corrosion, minimizing downtime for polishing or repairs.
- Automation Ready: Robotic arm compatibility allows quick integration into existing automated lines, reducing labor costs and human error.
- Scalable Design: The 1x16 configuration is ideal for medium-volume production (e.g., 30,000–50,000 caps per day) and can be duplicated for higher output.
Trusted by Global Customers
Since our establishment in 2017, Changzhou Hongxinyutai Precision Mold Co., Ltd. has grown to a team of 51–100 employees and operates from a modern facility spanning 1,000–3,000 square meters. Our products have been exported to over 15 markets including North America, Europe, Southeast Asia, and Africa. We proudly hold TS16969 certification, reflecting our commitment to quality management systems in tooling. Our molds are shipped from major ports in Jiangsu, Shanghai, and Shenzhen, ensuring efficient logistics worldwide.
We understand that selecting a mold is a long-term investment. That's why we offer comprehensive after-sales support, including installation guidance, spare parts, and technical consultation. Our engineering team can also customize the mold to meet specific cap designs or production requirements. Contact us today to discuss your two-piece bottle cap project and discover how our precision mold can enhance your manufacturing efficiency.
Frequently Asked Questions (FAQ)
Q1: What is the typical cycle time for this mold?
A1: Depending on cap wall thickness and material, cycle time ranges from 8 to 15 seconds. For thin-wall PP caps, 8–10 seconds is achievable with proper cooling.
Q2: Does the mold come with a hot runner controller?
A2: The mold base includes standard connectors for a hot runner controller, but the controller itself is optional and can be provided upon request.
Q3: Can this mold be used for other materials like PET or nylon?
A3: The mold is optimized for PP and PE. Using other materials may require different gate design and steel selection. We recommend consulting our engineers for material-specific customization.
Q4: How do you ensure the mold lasts 300,000 shots?
A4: The S136 steel is heat-treated to HRC 48-52, and moving components are coated with wear-resistant coatings. Regular maintenance as per our manual will help achieve the rated life.
Q5: What interface does the mold have for robotic arm collection?
A5: The ejector plate has standard mounting threads and a stroke that accommodates most robotic grippers. Part drop orientation is specified in the drawing, and we can adjust the design to match your robot brand.
Q6: Is the mold tested before shipment?
A6: Yes, we conduct sample runs using PP resin and provide a trial report with dimensional measurements and cap weight. Videos of the trial can be shared upon request.
Q7: What certificates do you have?
A7: Our company holds TS16969 certification, and we can provide supporting documentation if required.
Q8: Can you make molds for different cap sizes?
A8: Absolutely. The cavity geometry is customizable. Please provide your cap drawing (3D) for a feasibility study and quotation.
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