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Help CenterOEM Plastic Bottle Cap Injection Service: 1*16 Cavities, UG/Parasolid Design
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Changzhou Hongxinyutai Precision Mold Co., Ltd., established in 2017 with a factory spanning 1,000–3,000 square meters and a dedicated team of 51–100 professionals, brings years of hands-on expertise to the OEM Plastic Bottle Cap Injection Service. Our 1×16 cavity mold design, fully compatible with UG NX and Parasolid software, delivers high productivity, consistent quality, and cost efficiency for mass production of plastic bottle caps. Backed by TS16969 certification, we serve global markets including North America, South America, Europe, and Asia, ensuring your caps meet the most demanding standards.
Whether you need a standard 28mm cap or a custom design, our injection service offers precision engineering, fast turnaround, and end-to-end support from concept to production. Below, we detail the technical features and advantages that make our service a reliable choice for your packaging needs.
Key Features & Specifications
- 1×16 Cavity Mold: Optimized for high-volume output — each injection cycle produces 16 caps, significantly reducing unit cost while maintaining tight tolerances.
- UG/Parasolid Design Compatibility: We accept native UG NX and Parasolid files for seamless design review, modification, and mold flow analysis, ensuring perfect geometry before steel cutting.
- Material Versatility: Suitable for PP, PE, PET, and other thermoplastics commonly used in bottle caps. Material selection can be customized based on your product requirements (e.g., sealing performance, chemical resistance).
- Precision Molding: Equipped with advanced injection molding machines (80–200 ton clamping force) and CNC machining centers, achieving cavity-to-cavity weight variation below 0.5%.
- Hot Runner / Cold Runner Options: Depending on your volume and cap design, we offer both systems. Hot runner reduces waste and cycle time; cold runner is cost-effective for smaller runs.
- Surface Finish Choices: From mirror polish (SPI A1) to textured matte (SPI C3), we can match your desired cap appearance and release performance.
- Quality Control: 100% inspection of critical dimensions (thread pitch, outer diameter, seal ring) using coordinate measuring machines (CMM) and vision systems.
- TS16969 Certified Manufacturing: Our quality management system ensures traceability, process control, and continuous improvement — essential for automotive and packaging industries.
Typical Mold & Production Parameters
| Cavity Count | 1×16 |
| Mold Base Standard | DME / HASCO / Custom |
| Injection Pressure | 1200–1800 bar (adjustable) |
| Cycle Time (typical) | 6–12 seconds per shot |
| Mold Steel Options | S136, 718H, NAK80 (heat-treated for hardness HRC 48–52) |
| Cap Diameter Range | 20 mm – 60 mm (customizable) |
| Tolerance (critical) | ±0.02 mm |
Why Choose Our OEM Injection Service?
- Cost-Effective Mass Production: The 1×16 cavity design dramatically reduces per-unit cost for high volume orders (over 100,000 caps).
- Design Flexibility: We can modify your UG/Parasolid files to optimize gate location, cooling channels, and ejection for cap types (screw cap, snap cap, tamper-evident, etc.).
- Fast Sampling & Iteration: Lead time for T0 samples is typically 20–30 days. We support up to 3 design iterations within the quoted price.
- Global Shipping: Products are shipped from Jiangsu, Shanghai, or Shenzhen ports, with reliable logistics partners covering all major regions.
- Dedicated Support: A project manager is assigned to each order, providing weekly progress reports and real-time communication via email, WhatsApp, or WeChat.
Trust & Credentials
Since 2017, Changzhou Hongxinyutai Precision Mold Co., Ltd. has supplied precision molds to customers across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and domestic markets. With a factory area of 1,000–3,000 m² and a skilled workforce of 51–100 employees, we have fulfilled hundreds of bottle cap mold projects. Our TS16969 certification (applied to the automotive quality standard) ensures rigorous process control, from raw material inspection to final mold try-out. We are confident in our ability to deliver a reliable, high-performance mold that meets your production goals. Contact us today with your 2D/3D design for a competitive quote, or ask for free technical consultation on cap gate design and cooling optimization.
Frequently Asked Questions (FAQ)
Q1: What is the typical lifespan of your 1×16 cavity bottle cap mold?
A: The lifespan depends on the steel grade chosen and maintenance. With standard S136 steel, you can expect 500,000–1,000,000 shots. For higher volume, we recommend NAK80 or 718H steel, which can exceed 2,000,000 shots. We’ll advise based on your annual volume.
Q2: Can you work with my existing UG/Parasolid design, or do I need to modify it?
A: Yes, we accept native UG NX (.prt) and Parasolid (.x_t) files. Our engineers will review the design for moldability, gate location, cooling, and ejection. If any modifications are needed, we will provide suggestions free of charge before manufacturing.
Q3: What is your typical lead time for a new 1×16 cavity bottle cap mold?
A: Standard lead time is 25–35 days for T0 sample delivery. For molds requiring special features (e.g., unscrewing mechanism, tamper-evident ring), it may extend to 40–45 days. We always confirm the schedule in the quotation.
Q4: Do you provide samples before mass production?
A: Absolutely. We offer T0, T1, and T2 samples as needed. Each sampling round includes dimensional reports and molding parameters. Once the samples are approved, we proceed to production in your chosen material.
Q5: What is the minimum order quantity (MOQ) for this service?
A: For a new mold, MOQ is 1 set. For production using the mold, we typically ask for a minimum of 50,000 caps per run to make the tooling cost worthwhile. However, for smaller quantities, we can discuss alternative arrangements.
Q6: Can you add a custom logo or embossing on the cap?
A: Yes, we can incorporate logos, text, or patterns in the cavity design. Simply provide the artwork in vector format (AI, DXF) and we’ll integrate it into the mold steel via CNC engraving or EDM.
Q7: How do you ensure consistent weight and dimensions across all 16 cavities?
A: We design the runner system with balanced flow analysis using Moldflow simulation. During mold manufacturing, all cavities are machined with tight tolerances and verified with CMM. On the injection machine, we perform cavity pressure balancing tests to ensure each cap is identical.
Q8: Do you offer warranty and after-sales support?
A: Yes, we provide a 12-month warranty on mold manufacturing defects (excluding wear from normal use). During production, we offer remote troubleshooting and can also send an engineer to your facility for mold commissioning (travel expenses apply).
Ready to start your bottle cap project? Send your design files to our team for a free feasibility analysis and quotation. We look forward to partnering with you!
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