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Help CenterPrecision OEM Mold for Square Thick-Wall Cosmetic Jar – PMMA/Acrylic, +GF+ & Sodick EDM Made, 1*4 Cavities, High-Gloss Mirror Finish, 300K Shots Life
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As a professional manufacturer founded in 2017 and located in Changzhou, Jiangsu, China, Changzhou Hongxinyutai Precision Mold Co., Ltd. specializes in delivering high-precision injection molds tailored to the cosmetics packaging industry. Our Precision OEM Mold for Square Thick-Wall Cosmetic Jar is engineered to meet the most demanding requirements of luxury cosmetic brands, combining advanced machining techniques with rigorous quality control. This mold, crafted from premium PMMA/Acrylic material and manufactured using +GF+ and Sodick EDM technology, offers a consistent high-gloss mirror finish and an impressive 300,000 shots service life, ensuring both aesthetic excellence and production efficiency.
We understand that the cosmetics packaging market requires flawless surface quality and dimensional stability. That's why every detail of this mold—from the precise 1*4 cavity layout to the mirror-polished cavity walls—has been optimized to produce flawless square thick-wall jars with zero defects. Whether you need a standard design or a fully customized solution, our experienced engineering team can adapt the mold to your specific jar dimensions, wall thickness, and injection molding machine parameters.
Key Features & Technical Specifications
- Material Compatibility: Specifically designed for PMMA/Acrylic resins, but also compatible with other transparent or glossy thermoplastics (e.g., PETG, PS).
- Cavity Configuration: 1*4 cavities, perfectly balanced for uniform filling and minimal cycle time.
- Surface Finish: High-gloss mirror polish (SPI A-1 grade equivalent) achieved through diamond paste lapping and specialized +GF+ EDM processes.
- Durability: Premium tool steel (e.g., NAK80 or S136H) hardened and tempered, supporting up to 300,000 injection cycles under standard production conditions.
- Precision Manufacturing: All critical components are machined on +GF+ (AgieCharmilles) and Sodick EDM machines, ensuring tolerances within ±0.01 mm.
- Cooling System: Optimized conformal cooling channels for uniform heat dissipation, reducing cycle time by up to 15%.
- Ejection System: Smooth and reliable ejector pin layout, with optional hydraulic or pneumatic core pull if required.
- Certification: Manufactured under a TS16969 quality management system, with full traceability records.
| Parameter | Value |
|---|---|
| Mold Base Material | S50C / 1.2312 (or as per customer requirement) |
| Cavity Steel | NAK80 / S136H (optional) |
| Number of Cavities | 1 x 4 |
| Mold Life (shots) | 300,000 (under standard conditions) |
| Surface Finish (Ra) | 0.012 µm (mirror finish) |
| Tolerance | ±0.01 mm |
| EDM Equipment | +GF+ & Sodick |
| Weight (approx.) | 350–600 kg (depending on customization) |
Beyond the standard configuration, we offer several optional upgrades to further enhance productivity and mold longevity:
- Hot runner system (e.g., Husky, Mold-Masters) for improved gate aesthetics and faster cycles.
- Adjustable cavity pressure sensors for real-time process monitoring.
- Self-lubricating guide bushings to extend maintenance intervals.
- Customized customer logos or text engraving directly on the mold cavity (laser or EDM).
Customer Benefits
- Flawless appearance: The mirror-finish cavities eliminate the need for secondary coating or polishing, giving your square jars a premium, crystal-clear look that stands out on shelves.
- Long production runs: With a certified life of 300,000 shots, you can rely on consistent output without frequent mold maintenance, reducing downtime.
- Rapid turnaround: Our in-house machining (including +GF+ and Sodick EDMs) and experienced team allow us to deliver prototypes in 15–20 working days and production molds in 25–35 working days.
- Cost efficiency: The 1*4 cavity design maximizes output per cycle, lowering per-part manufacturing cost while maintaining high precision.
- Global compatibility: Mold bases and hot runner interfaces are compatible with standard injection molding machines from Arburg, Fanuc, Engel, Haitian, and other major brands.
Why Choose Changzhou Hongxinyutai Precision Mold?
Since 2017, we have grown into a trusted partner for clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. Our factory spans 1,000–3,000 square meters with a dedicated workforce of 51–100 skilled employees, including a team of design engineers who use the latest 3D CAD/CAM software to optimize mold flow and cooling. We ship our molds from convenient ports in Jiangsu, Shanghai, and Shenzhen, ensuring fast and reliable logistics to any destination worldwide.
Our quality management system is certified to TS16969, ensuring that every mold delivered meets strict dimensional, cosmetic, and performance standards. We provide comprehensive after-sales support, including mold commissioning, spare parts, and technical training for your production team. Over the years, we have supplied hundreds of precision molds to the cosmetics packaging industry, earning repeat business through consistent quality and on-time delivery.
If you are looking for a reliable partner to produce high-gloss square thick-wall cosmetic jars with superior clarity and durability, this OEM mold is the ideal solution. Contact us today to discuss your specific requirements and request a quote. Our team is ready to assist you with free consultations, 3D model analysis, and samples upon request.
Frequently Asked Questions
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Q: Is this mold suitable for high-volume production of square thick-wall jars?
A: Yes, it is designed for a service life of 300,000 shots, making it ideal for medium to high-volume production. The hardened steel cavities and optimized cooling ensure consistent quality throughout the entire run. -
Q: Can the cavity count be changed to 1×2 or 1×8?
A: Absolutely. We can customize the cavity configuration based on your annual volume and injection molding machine size. The standard 1×4 design is a balanced choice for many applications. -
Q: What is the lead time for a custom mold like this?
A: Typically 25–35 working days after design approval and deposit. For urgent orders, we can expedite to 20–25 days with additional charges. -
Q: Do you provide samples before mass production?
A: Yes, we can produce trial shots and send you samples for dimensional and cosmetic approval. This is included in the development process. -
Q: What is the roughness of the mirror finish?
A: The cavity surface roughness can reach Ra 0.012 µm, equivalent to a high-gloss mirror finish (SPI A-1). This eliminates any visible tool marks and gives the jar a premium clarity. -
Q: Which injection molding machine specifications are compatible?
A: The mold can be adapted to most standard machines with a clamping force of 80–150 tons. We will design the mold base and locating ring dimensions to fit your specific machine. -
Q: Do you offer warranty on the mold?
A: Yes, we provide a 12-month warranty against manufacturing defects under normal use. We also offer extended maintenance contracts. -
Q: Can I request a specific mold steel or surface treatment?
A: Certainly. We offer a range of tool steels (NAK80, S136H, etc.) and optional surface treatments like nitriding or PVD coating to further extend mold life.
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