OEM Thick-Wall Cosmetic Jar Injection Service: 1x4 Hot Runner, S136, Mirror Finish, Mold Protection, IATF 16949
Product Spotlights
Welcome to Changzhou Hongxinyutai Precision Mold Co., Ltd. We are a professional manufacturer with over 8 years of experience in precision injection molds. Our factory spans 1,000–3,000 square meters with a dedicated team of 51–100 skilled employees. We specialize in delivering OEM thick-wall cosmetic jar injection services that combine advanced engineering with rigorous quality control. Our mold solution features a 1x4 hot runner system, premium S136 stainless steel, and a flawless mirror finish to meet the highest standards of the cosmetic packaging industry. With integrated mold protection technology and compliance with TS16969, each mold we deliver is built for durability, precision, and long-term performance.
Key Product Features & Specifications
- Hot Runner System (1x4): Balanced flow distribution ensures consistent filling for all cavities, reducing cycle time and material waste.
- S136 Stainless Steel: High corrosion resistance, excellent polishability, and superior hardness for extended mold life.
- Mirror Finish (SPI A1): Achieves a glass-like surface, ideal for premium cosmetic jars that require a high-gloss, scratch-resistant appearance.
- Mold Protection System: Advanced sensors and safety interlocks prevent damage from improper ejection, overpressure, or material buildup.
- TS16969 Certified Process: Our manufacturing and quality management follows the automotive-grade standard, ensuring traceability, consistency, and reliability.
- Thick-Wall Capability: Designed for jars with wall thickness up to 5mm, enabling robust packaging for creams, balms, and solid cosmetics.
| Parameter | Value |
| Mold Steel | S136 (1.2083) – Hardened & Tempered to 48-52 HRc |
| Runner System | 1x4 Hot Runner with individual nozzle temperature control |
| Surface Finish | Mirror – SPI A1 (Ra < 0.05 μm) |
| Mold Protection | Integrated with proximity sensors & pressure monitoring |
| Weight Capacity | Customizable – typical jar capacity 30ml to 200ml |
| Cycle Time | Approx. 20–30 seconds (depends on part geometry) |
| Quality Standard | TS16969 compliant; in-process inspection & final CMM report |
Why Choose Our Injection Service? Our thick-wall cosmetic jar molds are engineered for high-volume production with minimal downtime. The hot runner system reduces scrap rates, while the S136 steel and mirror finish provide a premium aesthetic that enhances brand value. Mold protection extends tool life and lowers maintenance costs. Additionally, we support OEM customization – whether you need a specific thread design, undercut, or wall thickness variation, our team can modify the mold accordingly. From sampling to mass production, we offer comprehensive trial shots and mold adjustments to ensure perfect part quality.
Trusted by Global Brands – Since our establishment in 2017, we have served clients across North America, South America, Europe, Asia, Africa, and Oceania. Our factory’s 1,000–3,000 m² facility houses over 50 employees dedicated to mold design, machining, assembly, and testing. We ship from major ports in Jiangsu, Shanghai, and Shenzhen, ensuring fast logistics. Every mold we deliver comes with a 12-month warranty on workmanship and materials. Contact us today to discuss your cosmetic jar project – we’ll provide a detailed quote and engineering proposal within 48 hours.
Frequently Asked Questions
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Q: What is the typical delivery time for a thick-wall cosmetic jar mold?
A: Standard turnaround is 30–45 days after design approval. Rush orders (20–25 days) are available upon request. -
Q: Do you provide mold samples before mass production?
A: Yes, we offer sample shots (T1) at our facility. You can review and approve the molded jars before final mold release. -
Q: Can the mold be modified for different jar sizes?
A: Absolutely. Our mold design is modular – we can adjust cavity depth, diameter, and wall thickness to suit your specific jar volume. -
Q: What materials are compatible with the S136 mold?
A: S136 works well with common cosmetic jar plastics such as PP, PCTG, PETG, ABS, and SAN. For special resins, we can adapt the hot runner and cooling system. -
Q: How do you ensure the mirror finish is maintained over time?
A: S136’s high hardness and corrosion resistance, combined with proper mold maintenance guidelines, help the mirror finish last for hundreds of thousands of cycles. We also provide spare polishing instructions. -
Q: Is the TS16969 certification valid for automotive-grade requirements?
A: Yes, TS16969 is a recognized quality management system originally from automotive. It ensures rigorous process control, which benefits cosmetic packaging quality as well. -
Q: What is the minimum order quantity (MOQ) for mold purchase?
A: For OEM molds, our MOQ is 1 set. However, we recommend ordering at least 2–3 cavities for larger production volumes to optimize cost per part. -
Q: Do you offer mold maintenance and repair services?
A: Yes, we provide full after-sales support including repair, polishing, and component replacement. Service contracts are available.
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