Custom Injection Mold for Thick-wall Cosmetic Compacts, ABS/PMMA, IATF 16949:2016, 1x4 Hot Runner, S136 Steel, High-gloss Mirror
Product Spotlights
Changzhou Hongxinyutai Precision Mold Co., Ltd. has been a dedicated manufacturer of precision injection molds since 2017. We specialize in producing custom injection molds for thick-wall cosmetic compacts, combining advanced engineering with strict quality control. Our molds are crafted from premium S136 steel and feature a 1x4 hot runner system, ensuring uniform melt flow and a high-gloss mirror finish that meets the most demanding cosmetic packaging standards.
With our in-house expertise in ABS and PMMA materials, we deliver molds that produce flawless, thick-walled compacts with excellent transparency and scratch resistance. Every mold is built to deliver long service life and consistent output, backed by our TS16969-certified quality management system. Whether you need a prototype or high-volume production tool, our team is ready to support your project from concept to final product.
Below you will find detailed specifications, features, and answers to frequently asked questions about our custom injection molds for cosmetic compacts.
Product Features & Advantages
- Premium Steel & Hardness: Mold base and cavity/core are made of S136 steel, heat-treated to 48-52 HRC for excellent wear resistance and corrosion protection.
- High-Gloss Mirror Finish: Polished to SPI A1 standard (mirror finish), achieving surface roughness Ra ≤ 0.005 μm, ideal for glossy cosmetic compacts.
- 1×4 Hot Runner System: Ensures balanced melt distribution and reduced cycle time, minimizing material waste and improving part quality.
- Designed for Thick-Wall Parts: Optimized cooling channel layout and gate design to prevent sink marks and warpage on thick wall sections (typical wall thickness 2–5 mm).
- Material Compatibility: Specifically engineered for ABS and PMMA (acrylic) resins, supporting clear, colored, and multi-layer cosmetic compacts.
- Automotive-Grade Quality Control: Manufactured under TS16969 certified processes, with full traceability and inspection reports available.
- Customizable according to compact shape, size, logo engraving, and insert requirements.
Technical Specifications
| Parameter | Value |
|---|---|
| Mold Steel | S136 (equivalent to 420SS) heat treated to 48-52 HRC |
| Hot Runner Type | 1×4 system (1 manifold, 4 nozzles) – brand optional (e.g., YUDO, HUSKY, Mold-Masters) |
| Surface Finish | SPI A1 mirror finish (Ra ≤ 0.005 μm) |
| Mold Base Standard | LKM / HASCO / DME (customizable) |
| Cavity Configuration | 1 cavity (single cavity for thick-wall precision) |
| Recommended Injection Machine | 80–150 ton (depending on part size) |
| Mold Life Expectancy | ≥500,000 cycles (with proper maintenance) |
Customer Benefits
- Reduced waste & faster cycles: The hot runner system eliminates cold runners, saving material and shortening cycle times by up to 30%.
- Superior surface quality: Mirror-finished cavities produce glossy compacts without post-polishing, lowering your secondary costs.
- Consistency for thick walls: Our cooling design ensures uniform shrinkage, preventing dimensional deviation in thick sections.
- Long mold life: S136 steel with proper heat treatment resists corrosion from PMMA outgassing and maintains sharp edges over hundreds of thousands of shots.
- Fast delivery & support: As a specialized mold maker, we offer mold trial and sampling support, with typical lead time of 25–35 days for new molds.
Why Choose Hongxinyutai Precision Mold? Founded in 2017, our factory covers 1,000–3,000 m² with 51–100 skilled employees. We are TS16969 certified, ensuring our molds meet automotive-level reliability and traceability. Our main export markets include North America, Europe, Southeast Asia, and the Middle East, serving major cosmetic brands and packaging manufacturers. Every mold we ship undergoes a full inspection report, dimensional measurement, and pilot run before packing. We are committed to delivering a mold that runs perfectly from the first shot.
We invite you to send your compact design files (STEP/IGS/STL) for a free mold feasibility analysis and quotation. Let our experience work for your next cosmetic packaging project.
Frequently Asked Questions
-
Q: Can you make molds for complex shapes or multi-compartment compacts?
A: Yes. Our 5-axis CNC and EDM capabilities allow us to create complex cavity details. We can also design slides, lifters, and core pulls if your compact has undercuts or multiple compartments. -
Q: What is the typical delivery time for a custom cosmetic compact mold?
A: For a standard single-cavity thick-wall compact mold, lead time is 25–35 working days from approval of final design. Rush orders may be arranged with additional fees. -
Q: Do you provide samples for trial?
A: Absolutely. We offer mold trial and sample shipment (usually 10–50 pieces) prior to mold delivery, so you can approve the part quality. -
Q: Is the hot runner system included in the mold price?
A: Yes, the 1×4 hot runner system (standard brand) is included. If you prefer a specific brand like YUDO or HUSKY, we can adjust the quotation accordingly. -
Q: What materials are recommended for thick-wall cosmetic compacts?
A: ABS and PMMA (and their blends) are most common. ABS provides impact resistance; PMMA gives high clarity. Our mold is designed to handle both and can be optimized for other engineering plastics like SAN or PC upon request. -
Q: How do you ensure the high-gloss mirror finish on the mold cavity?
A: We use diamond polishing compounds and a multi-step lapping process to achieve SPI A1 standard (mirror finish). Surface roughness is verified with a profilometer and included in the final quality report. -
Q: Can you customize the mold with company logo or texture?
A: Yes. We can engrave logos via CNC or electrical discharge machining (EDM). For textured surfaces (e.g., matte or leather grain), we use chemical etching or laser texturing – available upon request.
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