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Unscrewing Closures
YOU ARE HERE: Home / Focused Expertise / Custom Caps & Closure Molds / Unscrewing Closures

Unscrewing Closures

Injection Mold | Unscrewing Closure Molds | StackTeck

Unscrewing Closure Molds are designed for caps and closures with detailed threads which cannot be ejected using bump-off methods. When these parts are molded they must be unscrewed from the mold to avoid thread damage. StackTeck has developed proven designs for unscrewing molds with optimized cooling allowing short cycle times.

StackTeck has built a large number of unscrewing closure molds for high cavitations for a design that is decades old, including stack molds of up to 128 cavities. Our design is well proven to have excellent cooling while maintaining a good water seal on the rotating cores.

We have worked with a range of approaches including rotating stipper rings instead of cores on large mold programs and we have innovative patented approaches to actuate core rotation or to rotate cavities instead of cores. All of these patented alternatives for rotation can be custom tailored within the range of technologies that StackTeck offers to a particular application.

Injection Molded Part | Unscrewing Closure Molds | Molded on StackTeck Mold


 

Benchmark Solutions:

  • Single-face Molds
  • Stack Molds
  • Mold Programs
  • System Integration
  • Part Design
  • Prototyping

Injection Molded Part | Unscrewing Closures | Molded on StackTeck Mold

 


 

Unscrewing Closures – Video

Servo Unscrewing Cap Mold Technology featured at K Show 2016
To learn more about Servo Driven Technology for molds, click here.

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Benchmark Testimonials

Beverage Caps

  • Carbonated Soft Drinks (CSD) Molds
  • Mineral Water Closures
  • Hot Fill Closures
  • Other Caps & Closure Molds

Custom Closures

  • Unscrewing Closures
  • Collapsing Core Closures
  • Bump-off Caps & Closure Molds
  • Flip-Top Caps & Closures
  • Personal Care
  • Multi-Material Closures

PET Preforms

  • PET Innovation Expertise
  • PET Preform Molds
  • PET Preform Overmolding
  • PET Hot Runners
  • Post Mold Cooling – PiCOOL™
  • Mold Cooling – KoolTrack™
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Thinwall Packaging

  • IML Containers
  • Barrier Containers / Lids
  • Ultra-Light-Weight Containers / Lids
  • Horticultural

Medical Molds

  • Medicine Cups
  • Labware / Petridishes
  • Pharmaceutical
  • Hospital Thinwall

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