Customized Precision Injection Molding Components
High-Precision Multi-Cavity Unscrewing Bottle Cap Mold Components
Engineered for high-volume, fully automatic bottle cap production, our precision mold components deliver flawless performance under extreme operational speeds. The unscrewing cores maintain tight concentricity and run-out tolerances (≤0.005 mm), ensuring slender, complex threads are molded without vibration or uneven wall thickness.
Gear-Driven Ejector Sleeves - Smooth high-speed rotation operation reduces leaks and mold wear
TiN-Coated Bushings - Extends tool life and protects against abrasion through millions of cycles
Multi-Cavity Mold Design - Optimized for high-volume production with consistent performance
Premium Tool Steel Materials
Sourced exclusively from global leaders, including Uddeholm, Hitachi, and Bohler, with full traceability and certification.
- H13 Hot-Work Steel - Bohler Uddeholm® material with exceptional thermal fatigue resistance for automotive molds and complex cavity inserts
- Stavax® ESR (420 Stainless Tool Steel) - ASSAB® sourced with mill test reports, ideal for surgical instruments and transparent components
- M340 High-Hardness Steel - European premium-grade steel offering extreme wear resistance for high-volume production
Our direct material sourcing from BOHLER and ASSAB with original certifications ensures compliance with ISO 13485 and IATF 16949 standards, extending mold lifespan by 30-50% compared to generic alternatives.
Advanced Manufacturing Process
- Roders CNC Machining - 3-axis CNC achieving ±0.005mm tolerances for complex surfaces
- Makino EDM - Electrical discharge machining for intricate structures and hard materials
- Sodick Wire EDM - Ultra-smooth finishes for optical components and high-precision molds
- Hardinge CNC Turning - Reliable precision turning with consistent quality
- Grinding and Polishing - Mirror-like surface finishes (Ra ≤ 0.1μm), reducing demolding resistance
- Heat Treatment - Vacuum quenching and nitriding for enhanced hardness and wear resistance
Rigorous Quality Control
Inspection Equipment
- Zeiss CMM for full-dimension CAD verification
- Optical projectors for tiny holes and thread accuracy
- Rockwell and Vickers hardness testers
- Cylindricity instruments for perfect cylindrical shapes
Quality Inspection Process
| Production Stage | Inspection Rate |
| Material Incoming | 99.99% Inspection |
| Rough Finished | 99.99% Inspection |
| Heat Treatment | Random Inspection |
| Face Grinding | 99.99% Inspection |
| Cylindrical Grinding | 99.99% Inspection |
| OD/ID Grinding | 99.99% Inspection |
| EDM & Wire-Cutting | 99.99% Inspection |
| Final Packing | 99.99% Inspection |
Industry Applications
Ideal for:
- Medical and Pharmaceutical Caps - Where tight tolerances are non-negotiable
- Cosmetic Packaging - Ensuring flawless closure aesthetics
- Food and Beverage Closures - Preventing leaks and contamination
- Automotive Components - High-temperature injection molding applications
Why Choose Our Multi-Cavity Bottle Cap Mold Components?
- High-precision unscrewing cores reduce vibration and improve wall thickness uniformity
- Gear-driven ejector sleeves with TiN-coated bushings for enhanced durability
- Deep-hole cooling channels optimize cycle time and reduce shrinkage
- Mirror EDM surfaces ensure smooth demolding with minimal downtime
- S136 ESR or SKD61 steels with strict heat treatment and coating verification
- CNC precision machining and CMM inspection reports guarantee cavity consistency
- Perfect solution for medical, cosmetic, food & beverage, and high-volume packaging
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