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Help CenterOEM Custom Thick-Wall Cosmetic Jar Injection Service: 1x4 Hot Runner, Hardened S136, Mirror Finish, IATF 16949:2016
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Changzhou Hongxinyutai Precision Mold Co., Ltd. (established 2017, 1,000-3,000 sqm factory, 51-100 employees) offers professional OEM custom thick-wall cosmetic jar injection service featuring a 1x4 hot runner system, hardened S136 steel, and mirror finish. Our molds are built under IATF 16949:2016 quality standards, ensuring precision and durability for high-volume production. Whether you need a unique jar design for luxury skincare or a sturdy thick-wall container for professional salon use, our engineering team tailors every detail to your specifications.
Product Features & Technical Specifications
- Mold Steel: Hardened S136 (HRC 48-52) – excellent corrosion resistance, high wear resistance, superior polishability.
- Hot Runner System: 1x4 (4-cavity) with precise temperature control for consistent filling, reduced scrap, and faster cycle times.
- Mirror Finish: SPI A1 grade mirror polish – delivers a flawless, glass-like surface on your cosmetic jars, enhancing product aesthetics.
- Thick-Wall Design: Optimized for thick-wall injection (wall thickness >5mm) – minimizes sink marks, voids, and warpage through advanced gating and cooling.
- Customization: OEM service – we create molds for any jar shape, size, color, logo, or branding requirement.
- Certification: IATF 16949:2016 (automotive-grade quality management) + TS16969 – ensures traceability and consistent output.
- Production Capacity: Up to 1,000,000+ shots per mold with proper maintenance – suitable for mass production.
Key Performance Data
| Parameter | Value / Description |
| Cavity Count | 4 (1x4 hot runner) |
| Mold Steel Hardness | HRC 48-52 (hardened S136) |
| Surface Finish Grade | SPI A1 (mirror) |
| Cycle Time (typical) | 25-35 seconds (depending on wall thickness) |
| Mold Service Life | ≥1,000,000 shots (under normal use) |
| Applicable Materials | PP, PET, ABS, Acrylic, SAN, PCTG, etc. (customizable) |
Our 1x4 hot runner system reduces material waste by eliminating cold runners and ensures every cavity fills uniformly. The hardened S136 steel combined with mirror finish not only gives your jars a premium look but also extends mold life, lowering your cost per part. The thick-wall design is engineered to avoid common defects like sink marks, allowing you to produce durable, high-quality cosmetic jars that stand out on the shelf.
Trust & Reliability – Why Choose Hongxinyutai?
With a factory size of 1,000-3,000 square meters and a skilled team of 51-100 employees, we have served clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East since 2017. We hold IATF 16949:2016 and TS16969 certifications, ensuring rigorous quality control from mold design to production. Our streamlined shipping from Jiangsu, Shanghai, or Shenzhen ports guarantees on-time delivery. We have delivered over 500 successful mold projects for cosmetic packaging, with customer satisfaction rates exceeding 95%. Contact us today to discuss your custom thick-wall cosmetic jar project – we provide free DFM analysis and competitive pricing.
Frequently Asked Questions
1. What is the minimum order quantity (MOQ) for this service?
We offer flexible MOQs depending on the mold complexity. Typically, for a custom thick-wall cosmetic jar mold, the MOQ starts at 5,000-10,000 pieces. Contact us for your specific quantity.
2. Can you match a specific color or logo for my jar?
Yes, we provide full OEM customization. You can supply a PMS/CMYK color code or physical sample, and we will match it during injection. Logos can be embossed, debossed, or hot-stamped.
3. What is the lead time for mold making?
Lead time is approximately 25-40 working days, depending on the complexity of the design and the need for mirror finish. Rush orders can be negotiated.
4. Do you provide sample parts before mass production?
Absolutely. We offer T1 samples for your evaluation and approval. After approval, we proceed with the full production run.
5. How do you control the mirror finish quality on thick-wall jars?
We use a multi-stage polishing process with diamond compounds and verify the surface with a profilometer. Our S136 steel is pre-hardened to allow a mirror finish that meets SPI A1 standards.
6. Can you use recycled or bio-based materials for the jars?
Yes, we can accommodate various materials including recycled PP, PET, and bio-based plastics. Please specify your material preference for a feasibility check.
7. What is your mold warranty?
We provide a 12-month warranty for mold workmanship and materials. Any defects due to design or manufacturing errors will be repaired free of charge.
8. Do you ship internationally? How is packaging handled?
We ship worldwide from Jiangsu/Shanghai/Shenzhen. Molds are packed in export-standard wooden crates, and parts are securely packed with bubble wrap and cartons. We can also arrange door-to-door DDP service upon request.
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