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Help CenterOEM Thick-Wall Cosmetic Compact Injection: 1*4 Cavities, S136 Steel, Robotic Collection
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Welcome to Changzhou Hongxinyutai Precision Mold Co., Ltd. As a dedicated manufacturer with a specialized focus on high-quality injection molds since 2017, we are proud to present our OEM Thick-Wall Cosmetic Compact Injection Mold. This precision tool is engineered for demanding production environments, featuring a 1*4 cavity configuration, premium S136 steel construction, and an advanced robotic collection system. Whether you are developing a new cosmetic line or upgrading existing packaging, this mold delivers repeatable accuracy, extended tool life, and seamless automation compatibility — all while maintaining the superior surface finish expected in luxury cosmetics.
Our mold is designed specifically for thick-wall cosmetic compacts, a category that requires robust materials and precise thermal control to prevent warpage and sink marks. With S136 stainless steel — known for its excellent corrosion resistance, high polishability, and wear resistance — the mold ensures that every compact part is visually flawless and dimensionally consistent. The robotic collection feature minimizes manual intervention, reduces cycle time, and supports 24/7 unmanned operation, making it an ideal solution for high-volume production.
▶ Key Product Features & Technical Specifications
| Cavity Configuration | 1*4 (one row of four cavities) – balanced filling, high efficiency |
| Mold Steel | S136 (equivalent to AISI 420) – hardened to HRC 48-52, polished to SPI A-2 finish |
| Wall Thickness Application | Thick-wall design (≥3mm) – minimizes distortion and ensures structural integrity |
| Collection System | Robotic (fully automated) – compatible with standard pick-and-place arms |
| Annual Mold Output | 200+ sets (based on our factory capacity) |
| Lead Time | 25-45 working days (customizable per complexity) |
▶ Detailed Advantages for Your Production Line
- Enhanced Mold Life: S136 steel provides excellent wear resistance, ensuring the mold can withstand hundreds of thousands of cycles without dimensional loss. Typical mold life exceeds 1,000,000 shots under proper maintenance.
- Superior Surface Quality: The cavity surface is polished to a mirror finish (Ra ≤ 0.05 μm), which transfers directly to the cosmetic compact, eliminating the need for secondary coating for appearance parts.
- Consistent Thick-Wall Molding: Our cooling system design utilizes conformal cooling channels (optional) to evenly dissipate heat, reducing cycle time by up to 20% compared to standard designs while preventing sink marks on thick sections.
- Automation Ready: The mold integrates seamlessly with robotic arms (e.g., Yaskawa, Fanuc). Ejector pins are positioned to facilitate easy part release and gripper access, enabling lights-out manufacturing.
- Customizable Gate & Runner: We offer hot runner or cold runner options. For thick-wall parts, a sub-gate or tunnel gate can be designed to minimize witness marks.
- Precision Fit: All inserts and moving components are machined with tolerances of ±0.005 mm, ensuring consistent shut-off and alignment over the entire production run.
Our molds are built to accommodate a wide range of thermoplastics commonly used in cosmetic packaging, including ABS, SAN, PMMA, and PP. The S136 steel also allows molding of food-contact grade materials if needed, expanding your product portfolio.
▶ Why Choose Changzhou Hongxinyutai Precision Mold Co., Ltd.?
Established in 2017, our factory spans 1,000-3,000 square meters and employs a dedicated team of 51-100 professionals. We have obtained the TS16969 certification (automotive quality management system), which underlines our commitment to systematic process control and continuous improvement — a standard we apply to every cosmetic compact mold we produce. Our main export markets include North America, South America, Eastern Europe, Southeast Asia, and Oceania, meaning we understand the diverse requirements of global cosmetic brands.
We use state-of-the-art CNC machining centers, EDM machines (both sinker and wire), and CMM inspection equipment to ensure every mold meets the highest geometric accuracy. Our in-house trial press allows us to test the mold before shipment, giving you a guaranteed first-shot success. With over 200 mold sets produced annually, we have refined our project management and quality assurance procedures to deliver on time, every time.
Your success is our success. By choosing our OEM Thick-Wall Cosmetic Compact Injection Mold, you are investing in a tool that will reduce your unit cost, improve product aesthetics, and support your automation goals. Contact us today to discuss your specific cavity layout, steel grade preferences, or robotic integration details. We are ready to engineer a mold that will give you a competitive edge in the fast-moving cosmetics market.
❓ Frequently Asked Questions
Q1: What is the typical lead time for a custom mold like this?
A: Standard lead time is 30-45 working days from design approval. For urgent orders, we can expedite to 25 days with an additional rush fee.
Q2: Can you use a different steel grade besides S136?
A: Yes, we offer alternative steels such as 2344 (H13), 1.2083, or NAK80 depending on your budget and required hardness. S136 is our recommended choice for cosmetic compacts due to its corrosion resistance and polishability.
Q3: Does the robotic collection system require any special programming?
A: The mold is designed with standard ejector pin patterns and clearance for robot grippers. We provide a mold data sheet (including knockout stroke and position), and your robot integrator can program the pickup routine easily.
Q4: What is the maximum temperature the mold can withstand during operation?
A: S136 steel can handle mold temperatures up to 200°C (392°F). However, for thick-wall parts, we usually recommend operating between 80°C and 120°C to balance cooling and cycle time.
Q5: Can you provide samples before mass production?
A: Absolutely. We can produce trial shots at our in-house machine (up to 180-ton clamping force) and send you physical samples for dimensional and cosmetic evaluation before finalizing the mold.
Q6: Is the mold compatible with hot runner systems?
A: Yes, we can integrate hot runner systems from brands like Synventive, Husky, or YUDO. For thick-wall compacts, we often recommend a valve gate to reduce pressure drop and improve aesthetics.
Q7: What kind of warranty do you offer?
A: We provide a 12-month warranty against manufacturing defects (excluding wear from normal use). After the warranty period, we offer discounted maintenance services.
Q8: How do you ensure the mold fits my existing injection molding machine?
A: We will ask for your machine specifications (tie-bar spacing, platen size, ejector pattern, etc.) and design the mold base to match. All dimensions are verified before manufacturing begins.
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