High-Precision Bottle Cap Mold Export to Europe
A German packaging manufacturer ordered high-cavitation injection molds for mineral water bottle caps. The project demanded tight dimensional tolerances, fast cycle times and compliance with EU food-contact material standards.
Project Highlights
- Shipped to Bavaria, Germany for a leading packaging producer
- 8-cavity cold runner mold achieving sub-8-second cycle time
- EU food-contact material compliance with full documentation
- Precision thread unscrewing mechanism with tamper-evident band slitting
Project Information
- Country: Germany
- Industry: Beverage Packaging
- Mold Type: Multi-cavity Injection Mold
- Material: HDPE (food-grade)
- Cavities: 8
- Shipping: Air freight, EU-compliant packing
How this mold project was developed and delivered
A German packaging manufacturer serving the European mineral water industry needed precision injection molds for 28mm PCO neck bottle caps. Key requirements included sub-8-second cycle times, consistent tamper-evident band formation, precise thread dimensions and full EU food-contact material traceability.
Shengqi engineered an 8-cavity cold runner mold with mechanical unscrewing, integrated tamper band slitting, balanced runner system and optimized cooling for high-speed production. All mold components contacting the plastic melt used food-grade-compliant steel grades with full material certification.
The client's engineering team visited Shengqi's factory for the mold trial and sample approval. Cap samples were tested on the client's capping equipment in Germany and passed all torque, seal integrity and tamper band performance requirements.
Key points addressed during the project
EU Food-Contact Compliance
All mold materials, lubricants and surface treatments were selected for EU 1935/2004 food-contact compliance. Full material traceability documentation was provided for every mold component touching the plastic melt.
High-Speed Cycle Time Optimization
The mold achieved consistent sub-8-second cycles through optimized cooling channel design, balanced runner sizing, efficient unscrewing mechanism timing and precision mold alignment for fast, reliable ejection.
Tamper Band Precision
Tamper-evident band slitting required precise blade alignment and consistent slit geometry across all 8 cavities. The slitting mechanism was designed for easy blade replacement and adjustment during production.
On-Site Trial and Client Approval
The German client visited Shengqi for the mold trial, bringing their own resin and testing equipment. Cap samples were measured, torque-tested and capping-trialed on-site before mold approval and shipment.
Shipping, documentation and post-delivery support
- Full material certification for all steel grades and surface treatments (EU 1935/2004 compliance)
- Export documentation: commercial invoice, packing list, air waybill, EUR.1 certificate
- Packing: VCI-protected, vacuum-sealed molds in ISPM 15 heat-treated wooden crates
- Incoterms: FOB Shanghai
- Mold trial samples and dimensional inspection reports provided before shipment
- 24-month warranty with remote technical support
- Spare parts kit: unscrewing rack components, slitting blades, ejector pins
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