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Help CenterOEM Square Thick-Wall Cosmetic Jar Injection Mold – 1*4 Cavities Hot Runner, Hardened S136 Steel, 300K Shots, Mirror Finish, IATF 16949:2016 Certified
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At Changzhou Hongxinyutai Precision Mold Co., Ltd., we pride ourselves on delivering high-precision injection molds that meet the demanding needs of the cosmetics packaging industry. Our OEM Square Thick-Wall Cosmetic Jar Injection Mold is engineered for durability, repeatability, and superior surface quality. Designed with a 1*4 cavity hot runner system and constructed from hardened S136 steel, this mold delivers consistent performance over 300,000 shots while achieving a flawless mirror finish on every part. Backed by our IATF 16949:2016 certified quality management system, this mold offers the reliability and precision that global cosmetic brands require.
This mold is specifically optimized for producing square, thick-wall cosmetic jars, ensuring uniform wall thickness, minimal warpage, and excellent optical clarity. The hot runner system reduces material waste and cycle time, while the hardened S136 steel core and cavity provide exceptional wear resistance and corrosion protection. Whether you are launching a new skincare line or scaling up production, this mold delivers cost-effective, high-volume output without compromising on aesthetic quality.
Key Features & Technical Specifications
- Cavity Configuration: 1*4 cavities for balanced filling and optimal productivity.
- Runner System: Fully integrated hot runner with individual temperature control for each cavity, ensuring consistent material flow and minimal pressure drop.
- Steel Grade: Hardened S136 (equivalent to 420SS) vacuum heat-treated to HRC 48–52, offering superior hardness, toughness, and corrosion resistance.
- Surface Finish: Mirror polish (SPI A-1 grade) on cavity surfaces, achieving a glossy, defect-free surface on molded jars – ideal for transparent or high-gloss cosmetic packaging.
- Shot Life: Rated for 300,000 shots under normal operating conditions, with replaceable wear components available for extended service life.
- Cooling System: Conformal cooling channels designed for uniform temperature distribution, reducing cycle time by up to 20% compared to traditional straight-drilled designs.
- Ejection System: Hydraulic or mechanical ejection with optional lifters and slides for complex undercuts (customizable).
- Certification: Manufactured under an IATF 16949:2016 certified quality management system, ensuring traceability and process control.
Technical Parameter Table
| Parameter | Value |
|---|---|
| Mold Base Size | Standard 6060 or customized |
| Cavity Steel | Hardened S136 (48–52 HRC) |
| Runner Type | Hot runner (valve gate optional) |
| Mold Weight | Approx. 800–1200 kg (depending on size) |
| Mold Life Expectancy | ≥ 300,000 shots (with proper maintenance) |
| Surface Finish Quality | Mirror finish (Ra ≤ 0.05 μm) |
| Operating Temperature | 180–280°C (melt), 30–80°C (mold) |
| Compatible Machines | 80–160 ton injection molding machines |
| Warranty | 12 months or 100,000 shots (whichever comes first) |
Detailed Product Advantages & Customer Benefits
- High Efficiency with 1*4 Cavity Hot Runner: The multi-cavity design increases output per cycle while the hot runner eliminates sprue waste, saving material costs and reducing cycle time by 10–15%. This directly translates to lower per-part cost for high-volume production.
- Superior Part Quality: Hardened S136 steel combined with mirror polishing ensures cavity surfaces are free from pores and defects, resulting in cosmetic jars with a brilliant finish, no weld lines, and consistent dimensions from shot to shot. This reduces rejection rates and enhances brand image.
- Long Mold Life & Low Maintenance: S136 steel provides excellent wear resistance, while the optimized cooling system minimizes thermal stress. The mold can reliably produce 300,000 parts with minimal downtime. Replacement inserts are available for extended service.
- Full Customization (OEM): As a manufacturer based in Changzhou, China, we offer complete customization – from cavity layout and gating design to cooling configuration and surface texture. We work closely with clients to adapt the mold to their specific jar geometry, thread design, and material (PP, PET, ABS, etc.).
- IATF 16949:2016 Quality Assurance: Our certification ensures rigorous process control, from raw material inspection to final mold try-out. Each mold undergoes dimensional inspection, hardness testing, and trial runs before shipment, giving you peace of mind.
- Global Logistics Support: We ship from Jiangsu, Shanghai, or Shenzhen ports, with experience exporting to markets including North America, Europe, Southeast Asia, and the Middle East. Our team provides timely technical support and spare parts supply.
Trust & Credibility
Changzhou Hongxinyutai Precision Mold Co., Ltd. has been a dedicated injection mold manufacturer since 2017. With a 1,000–3,000 square meter factory and a skilled team of 51–100 employees, we specialize in precision molds for the cosmetics, automotive, and consumer goods sectors. Our molds are exported to over 15 countries and regions, and we have received positive feedback for our consistent quality and on-time delivery.
We hold an IATF 16949:2016 certification (equivalent to TS16949), which underscores our commitment to quality management in the automotive and precision manufacturing domains. Although this mold is for cosmetic packaging, the same discipline applies to every project we undertake. Our engineers have over a decade of combined experience in hot runner mold design, and we utilize advanced CAD/CAM software and CNC machining centers to ensure accuracy to ±0.01 mm.
Every mold is tested on a trial injection machine at our facility, and we provide a detailed inspection report with photos and CMM data upon request. We offer a 12-month warranty on workmanship and materials, and our after-sales team is available for remote troubleshooting or on-site support if needed.
With this OEM Square Thick-Wall Cosmetic Jar Injection Mold, you are investing in a tool that delivers consistent high-quality output, reduces operational costs, and supports your brand’s growth. Contact us today to discuss your specific mold requirements and get a competitive quote.
Frequently Asked Questions
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Q: What injection molding machines is this mold compatible with?
A: This mold is designed for use with standard injection molding machines ranging from 80 to 160 tons clamping force. The specific dimensions and locating ring size can be customized to match your machine. -
Q: Can the mold be modified for different jar sizes or wall thicknesses?
A: Yes, as an OEM product, we can adjust cavity dimensions, wall thickness, thread type, and overall geometry to fit your specific jar design. Please provide a 3D drawing or sample for evaluation. -
Q: What is the typical lead time for this mold?
A: Lead time is typically 25–35 working days after receiving a 50% deposit and finalizing design approval. Rush orders may be possible with additional charges. -
Q: Do you provide mold trial service and samples?
A: Yes, we offer trial runs at our facility using your preferred material (PP, PET, ABS, etc.). We can produce up to 50 sample jars for your evaluation before shipment. -
Q: How do you ensure the mirror finish quality?
A: Our mold makers use a multi-step polishing process with diamond paste and ultrasonic polishing tools, achieving a surface roughness of Ra ≤ 0.05 μm. Final finish is verified with a profilometer and visual inspection. -
Q: What is the warranty and after-sales support?
A: We provide a 12-month warranty on the mold from the date of shipment, covering defects in materials and workmanship. We also offer lifetime technical support and spare parts supply. -
Q: Can you handle complex features like undercuts or internal threads?
A: Yes, we can incorporate hydraulic cores, lifters, and unscrewing mechanisms. Please share your part design for feasibility analysis. -
Q: Is the mold certified for food-grade or medical applications?
A: This mold is designed for cosmetic packaging. The hardened S136 steel and mirror finish are suitable for food-grade materials, but specific certifications (e.g., FDA) would require additional validation on your end.
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