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THE BASIC CONCEPT OF 
INJECTION MOLD 
Presented by 
Riona Ihsan Media
INDEX 
• How it Works ? 
• Injection Molding Machine 
• The Basic Parts of Mold Design 
• Standard Injection Mold 
• Mold Technology
How it Works ? 
Product of Injection Mold 
• Granular material is fed from 
hopper into the cylinder 
• Plastic is heated and melted 
• Cylinder screw forced out the 
plastized (while still melted) 
• Melted plastic enter the mold 
through a nozzle (injection). 
• Held closed by clamping 
mechanism.
Injection Molding Machine
The Basic Parts of Mold Design 
• Cavity & Core 
• The Parting Line 
• Runners and Gates 
• Venting 
• Cooling 
• Ejection
Standard Injection Mold
Mold Technology 
1. Stack Molds 
• High part volume 
• Keep costs-to-manufacture low. 
2. Unscrewing Molds 
• Cap and Closure molds, and other products with thread and precision. 
3. Spin Stack Molds >> 
• Multi operations in a rotating, four-face cube mold decorating/labeling, assembly. 
• Reduce manufacturing costs and improve quality. 
4. In-Mold Technology 
• In-mold labeling and in-mold decorating 
• In-mold closing of closures with living hinges, and in-mold assembly. 
5. Multi-Material/Two Shot >> 
• Multi-material or multi-color components can be molded in a single cycle. 
• Broad range of products from consumer to technology products and packaging
Thank You 
Question, Suggestion, or Comment, please raise your hands.

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The basic concept of injection mold

  • 1. THE BASIC CONCEPT OF INJECTION MOLD Presented by Riona Ihsan Media
  • 2. INDEX • How it Works ? • Injection Molding Machine • The Basic Parts of Mold Design • Standard Injection Mold • Mold Technology
  • 3. How it Works ? Product of Injection Mold • Granular material is fed from hopper into the cylinder • Plastic is heated and melted • Cylinder screw forced out the plastized (while still melted) • Melted plastic enter the mold through a nozzle (injection). • Held closed by clamping mechanism.
  • 5. The Basic Parts of Mold Design • Cavity & Core • The Parting Line • Runners and Gates • Venting • Cooling • Ejection
  • 7. Mold Technology 1. Stack Molds • High part volume • Keep costs-to-manufacture low. 2. Unscrewing Molds • Cap and Closure molds, and other products with thread and precision. 3. Spin Stack Molds >> • Multi operations in a rotating, four-face cube mold decorating/labeling, assembly. • Reduce manufacturing costs and improve quality. 4. In-Mold Technology • In-mold labeling and in-mold decorating • In-mold closing of closures with living hinges, and in-mold assembly. 5. Multi-Material/Two Shot >> • Multi-material or multi-color components can be molded in a single cycle. • Broad range of products from consumer to technology products and packaging
  • 8. Thank You Question, Suggestion, or Comment, please raise your hands.