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Help CenterOEM Thick-wall Cosmetic Compact Mold With 1x4 Cavities Hot Runner System, S136 Hardened Steel, Mirror Finish for Scratch-free Production
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As a professional manufacturer based in Changzhou, Jiangsu, China, Changzhou Hongxinyutai Precision Mold Co., Ltd. (established 2017) specializes in delivering high-precision injection molds for the cosmetic industry. Our OEM thick-wall cosmetic compact mold with 1×4 cavities hot runner system is engineered to meet the rigorous demands of mass production while ensuring flawless surface quality. Crafted from S136 hardened steel and finished with mirror polish, this mold guarantees scratch-free production and extended tool life—ideal for brands seeking consistent, high-gloss cosmetic compacts.
Our factory spans 1,000–3,000 square meters, staffed by 51–100 skilled workers, and operates under TS16969 quality management standards. We ship globally from Jiangsu, Shanghai, and Shenzhen ports, serving markets including North America, Europe, Southeast Asia, and the Middle East. Below is a detailed breakdown of the mold's features and benefits.
Key Features & Technical Specifications
| Mold Base | Standard or customized (OEM) |
| Cavity / Core Steel | S136 hardened steel (48-52 HRC) |
| Cavity Configuration | 1×4 (4 cavities in one mold) |
| Runner System | Hot runner (manufacturer: optional) |
| Surface Finish | Mirror finish (SPI A1 grade achievable) |
| Wall Thickness | Thick-wall design (customizable per part) |
| Application | Cosmetic compacts (powder, blush, eyeshadow) |
| Production Material | ABS, PP, SAN, PMMA, etc. |
| Mold Life Expectancy | 500,000 – 1,000,000 shots (depending on maintenance) |
Product Advantages for Your Business
- Scratch-Free Production: The mirror-finished cavity surface eliminates drag marks and scratches on the cosmetic compact, ensuring a pristine, high-gloss appearance every cycle. This reduces reject rates and enhances brand image.
- Thick-Wall Design Stability: Our mold accommodates thick-wall parts (e.g., 3-8 mm) without warpage or sink marks, thanks to optimized cooling channel layout and robust steel construction. Ideal for heavy-duty compacts that require rigidity.
- Hot Runner Efficiency: The 1×4 hot runner system eliminates cold runner waste, shortens cycle time by 15–25%, and ensures balanced filling across all cavities. It also allows for automatic degating, reducing post-processing labor.
- S136 Hardened Steel Durability: S136 is a premium stainless mold steel with excellent corrosion resistance and wear properties. After hardening to 48-52 HRC, it withstands high clamping forces and abrasive resin compounds, delivering long mold life and reduced downtime.
- OEM Flexibility: We can customize the mold's parting line, gate location, cooling layout, and ejection system to match your part geometry and production machine. Our engineers provide DFM (Design for Manufacturing) reports to optimize the design before steel cutting.
- Consistent Quality Control: Every mold is trial-tested on our injection machines and inspected with CMM (Coordinate Measuring Machine) to ensure cavity dimensions are within ±0.02 mm tolerance. We also provide sample parts for your approval.
Why Partner with Changzhou Hongxinyutai Precision Mold?
Since 2017, we have delivered over 500 molds to clients across 20+ countries. Our TS16969-certified processes (applicable to automotive and general precision molding) ensure that every tool meets international reliability standards. With a dedicated team of 25+ mold designers and technicians, we maintain an average lead time of 25–35 working days for molds of this complexity.
We understand that cosmetic packaging requires impeccable aesthetics. That's why we invest in advanced CNC machining centers, EDM, and mirror polishing workshops to achieve the mirror finish that eliminates post-mold buffing. Our shipping network from Jiangsu, Shanghai, and Shenzhen ports guarantees safe and timely delivery worldwide. We also offer on-site installation support and remote troubleshooting for your convenience.
Ready to elevate your cosmetic compact production? Contact us today for a free mold design consultation and competitive quotation. Let our expertise turn your concept into a high-performance, scratch-free mold.
Frequently Asked Questions (FAQ)
1. What is the expected mold life for this thick-wall compact mold?
With proper maintenance, the S136 hardened steel mold can achieve 500,000 to 1,000,000 cycles. The hot runner system and cooling channels are designed for continuous production. We recommend periodic polishing to maintain mirror finish.
2. Can you customize the number of cavities or runner type?
Yes, we offer OEM customization. The 1×4 configuration is standard for medium-volume production, but we can adjust to 1×2, 1×6, or 1×8 based on your required output. Cold runner systems are also available upon request.
3. What plastic resins are compatible with this mold?
The mold works well with ABS, PP, SAN, PMMA, and other common cosmetic-grade thermoplastics. For special materials like nylon or PC, we can recommend gate size and cooling adjustments.
4. How do you ensure scratch-free production?
Our mirror polish (SPI A1 standard) eliminates surface roughness below Ra 0.01 μm. Additionally, we incorporate proper ejection angles and gentle knockout pin layout to avoid marking the part during demolding.
5. What is the typical lead time for this mold?
Average lead time is 25 to 35 working days after design approval and deposit. Rush orders (20 days) are possible with priority scheduling—please inquire.
6. Do you provide samples before mass production?
Yes. We conduct mold trials and send 20–50 sample parts for your inspection and approval. Only after you confirm the samples do we proceed with mass shipping.
7. What certifications does your company hold?
We are certified under TS16969 (equivalent to IATF 16949) quality management system. Additional certifications can be obtained per customer requirements, subject to audit.
8. How is the mold packaged for international shipping?
Molds are disassembled, cleaned, anti-rust treated, and sealed in moisture-proof packaging. We use export-grade plywood crates with shock-absorbing foam. Delivery is via sea or air from any of our three port options.
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