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Help CenterCustom Mold for Thick-Wall Cosmetic Bottles – Designed for High-Volume Production of Skin Care Packaging, S136 Steel, +GF+ & Sodick EDM.
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Welcome to Changzhou Hongxinyutai Precision Mold Co., Ltd., a dedicated manufacturer with over 7 years of specialized experience in precision mold making. We take pride in introducing our custom injection mold specifically engineered for thick-wall cosmetic bottles. This mold is designed to meet the rigorous demands of high-volume skin care packaging production, leveraging top-tier materials like S136 steel and advanced machining from +GF+ and Sodick EDM. Our goal is to provide you with a durable, reliable, and cost-effective tooling solution that ensures consistent part quality and extended mold life.
This custom mold is meticulously crafted to handle thick-wall cosmetic bottles, which are increasingly popular in the premium skin care segment. The robust steel construction and precision EDM finishing allow for excellent surface finish and tight dimensional tolerances, even under high-cycle production. Whether you need a single-cavity or multi-cavity layout, our engineering team can tailor the mold to your specific bottle design, neck finish, and thread requirements.
Key Product Features & Technical Specifications
- Premium Steel Grade: S136 (equivalent to 420 stainless) offers superior corrosion resistance, high hardness (48-52 HRC after heat treatment), and excellent polishability for glossy bottle surfaces.
- Precision EDM Machining: Utilizing +GF+ and Sodick wire-cut and sinker EDM machines ensures micro-level accuracy for cavity details, cooling channels, and ejection systems.
- Designed for Thick-Wall Geometry: Optimized gate, runner, and cooling design to minimize sink marks, warpage, and cycle time for thick-wall parts (typically 3-8 mm wall thickness).
- High-Volume Durability: Hardened tool steel inserts, guided ejection, and robust hot runner systems (available upon request) support production runs exceeding 1,000,000 shots with minimal maintenance.
- Customizable Cavity Count: Available in 1, 2, 4, 8, or more cavities based on your annual volume targets. Multi-cavity layouts reduce per-part cost significantly.
- Efficient Cooling System: Conformal cooling channels machined via 5-axis CNC to reduce cycle time by up to 30% compared to standard straight-line cooling.
| Parameter | Value |
|---|---|
| Mold Base | LKM or DME standard (custom dimensions available) |
| Cavity Steel | S136 (1.2085), hardened to 48-52 HRC |
| Core Steel | S136 or 8407 for high thermal conductivity |
| EDM Equipment | +GF+ Agie Charmilles & Sodick AG series |
| Surface Finish | SPI A-1 to A-3 (mirror finish for bottle cavities) |
| Cycle Time | 15-35 seconds (depending on wall thickness & cooling) |
| Hot Runner System | Optional (suitable for PP, PE, PET, ABS, Acrylic, etc.) |
| Ejection | Ejector pins + air poppet (if needed) |
Client Benefits
- Reduced Total Cost of Ownership: Premium steel grade and precision manufacturing extend mold life, reducing replacement frequency and downtime.
- Faster Time to Market: Our in-house mold design and manufacturing capabilities allow typical lead times of 25-40 days for custom molds.
- Consistent Part Quality: Tight cavity tolerances (±0.02 mm) and repeatable EDM passes ensure uniform bottle wall thickness and glossy surfaces every cycle.
- Scalability: Molds are designed to run on standard injection molding machines (100-500 ton), and we can adjust cavity layout as your volume grows.
- Technical Support: We provide mold tryout, process optimization, and on-site service options to help you achieve target cycle times and yield.
Our Company Strength & Trust Assurance
Changzhou Hongxinyutai Precision Mold Co., Ltd. was founded in 2017 and has grown into a professional mold making enterprise with a factory area of 1,000-3,000 square meters and a dedicated team of 51-100 skilled employees. We hold TS16969 certification, reflecting our commitment to quality management systems in the precision manufacturing industry. Our molds are exported to diverse markets including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, and the Middle East. With a strong foothold in the domestic market and ports of shipment in Jiangsu, Shanghai, and Shenzhen, we ensure timely delivery and responsive customer service. We have successfully delivered hundreds of custom molds for cosmetic packaging clients, and we are confident that our thick-wall cosmetic bottle mold will exceed your expectations in performance, longevity, and cost efficiency. Contact us today for a quote or to discuss your project requirements.
Frequently Asked Questions (FAQ)
-
What plastic materials can this mold process?
The mold is compatible with a wide range of materials including PP, PE, PET, ABS, acrylic, and styrene copolymers. For thick-wall bottles, we recommend using materials with good flow properties and low shrinkage. -
What is the typical lead time for a custom mold?
Standard lead time is 25-40 working days after design approval. Rush orders can be accommodated with additional cost and subject to shop capacity. -
How many cavities can I request?
We can design and build molds with 1 to 8 cavities based on your annual production volume. For very high volumes, multi-cavity stacks are possible. -
Does the mold include a hot runner system?
Hot runner is optional. We can also do cold runner with tunnel gate. We will recommend the best solution based on your bottle design and material. -
What is the minimum wall thickness you can mold?
Our mold is optimized for thick-wall bottles (3-8 mm). For thinner walls (1-2 mm), we have separate design standards. -
Do you provide mold tryout services?
Yes, we offer mold tryout on our own injection machines (available up to 500 tons). We can also run initial production samples for your approval. -
How do you ensure the mold cavity surface finish matches the cosmetic bottle requirement?
We use +GF+ and Sodick EDM for fine finishing, and we can achieve SPI A-1 (mirror) to C-3 (texture) finishes. We also apply polishing, etching, or coating as needed. -
What is the warranty period for this mold?
We provide a 12-month warranty on workmanship and materials under normal operating conditions. Extended warranty plans are available upon request.
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