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- louis@newthinkingmould.com
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Injection Jar Mold
Injection Jar Mold is designed for high-volume production of wide-mouth PET jars used in food packaging, cosmetics, and household chemical containers.
Description
Product Overview
Injection Jar Mold is designed for high-volume production of wide-mouth PET jars used in food packaging, cosmetics, and household chemical containers.
The mold is engineered for stable multi-cavity production, consistent dimensional control, and long-term operation in continuous injection molding environments.
It is suitable for production lines requiring repeatable output quality and stable cycle performance under industrial conditions.
PET Jar Mold Detail (53mm, 20g Preform)
|
Mold Size |
690*360*480 (mm) |
|
Mold Layout |
4*2 |
|
Part Flexibility |
Interchangeable weight components for 15g and 20g preforms |
|
Weight Tolerance |
±0.3g |
|
Wall thickness Variation |
±0.05mm |
|
Recommended Machine |
200Ton injection molding machine |
|
Production Per Hour |
Around 2000PCS/hour |
|
Guaranteed Mold Life |
Guaranteed mechanical life of over 3,000,000 shots |
Engineering Focus
Patented hot runner technology and optimized independent cooling channels reduce molding cycles by 15% to 20% for higher hourly output.
Cavities and cores forged from premium S136 stainless steel (HRC 48-52) support an operational life of over 3,000,000 shots.
In-house high-precision CNC machining maintains wall thickness tolerances within ±0.05mm, ensuring zero-flash and virtually invisible parting lines.
The robust mechanical structure adapts to both virgin and recycled PET (rPET) while maintaining consistent jar preform clarity.
Application Experience
This mold design has been applied in PET jar production for:
Food storage packaging manufacturers
Cosmetic container producers
Household chemical packaging suppliers
Export markets include Europe, South America, Middle East, Africa, and Southeast Asia.
Mold Validation & Testing
Each mold is validated under real production conditions before shipment to ensure dimensional stability and process reliability.
Testing scope includes:
Continuous injection cycle stability testing
Cavity-to-cavity weight consistency check
Dimensional inspection of critical sealing areas
Hot runner temperature balance verification
Final delivery includes:
Trial molding video
Process parameter sheet
Sample parts for customer verification
Global Compliance & Certifications
Mold Design Standard: SPI (Society of the Plastics Industry) structural design guidelines
Material Certification: S136 steel material certificate available upon request
Electrical Components: CE-certified hot runner electrical interfaces
In addition, internal manufacturing follows standardized mold assembly and inspection procedures aligned with industrial injection mold production practices.
Note: Certifications apply to selected components and structural standards used in mold manufacturing.
Optional Engineering Notes (For Buyers)
Mold flow analysis can be adjusted based on jar weight, gate design, and wall thickness distribution requirements.
Hot runner configuration can be customized according to injection molding machine specification and cavity layout.
Cavity layout scalability depends on production capacity targets and acceptable cycle time range.
RPET processing stability is influenced by material moisture content and intrinsic viscosity (IV) consistency.
FAQ
Q: What steel material is used for core and cavity?
A: We use S136 stainless steel, vacuum hardened to HRC 48–52. This material is widely used in PET molding applications due to its corrosion resistance and dimensional stability under long production cycles.
Q: Do you test the mold before shipping?
A: Yes. Each mold undergoes a minimum 24-hour continuous trial run under production conditions. We provide trial video, process parameters, and sample preforms for customer verification before shipment.
Q: Can your jar molds process recycled PET (rPET)?
A: Yes. The mold is designed to support both virgin PET and rPET. However, stable molding results depend on material drying conditions and IV consistency of the recycled PET.
Q: What is the delivery time for custom molds?
A: Standard lead time is approximately 45–60 days after design approval. Complex cavity layouts or high customization may require additional time.
Q: How do you handle spare parts and after-sales support?
A: We provide essential wear parts with shipment, including seals, heating elements, and nozzles (depending on configuration). Technical support is available for installation, setup, and troubleshooting guidance.
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