PT ZONE: Injection Molding

PT Article Dispenser Molder Opens New Plant in Illinois
Worldwide Dispensers is up and running in Bolingbrook with 10 injection molding machines ranging in clamp force from 25 to 700 tons. More (+)

MOST RECENT CONTENT: Injection Molding

Two New Alliances in Microcellular Foams

Trexel has announced machinery (Milacron) and materials (Lubrizol) deals, as well as a long-running application partner (New Balance).

Ford Recognizes Extol in SPE Automotive Innovation Awards

Cited for hot-plate weld tooling used to make glove box.

Commercial Plastics Acquires Xten’s Assets

A tumultuous fall that saw it flirt with default is over for custom injection molder Xten Industries, which has been acquired out of auction by large-tonnage molding specialist, Commercial Plastics.

Mack Molding Still Working To Bridge ‘Skills Gap’

Progressive molder hosts another National Manufacturing Day, develops intern program.

Integrated Multi-Process Cells Hum at Fakuma Show

Why not combine plastic injection with metal injection, or bead-foam molding, or laser printing?

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Injection Molding


In injection molding material is fed through a hopper into an extruder, where a reciprocating screw mixes and melts the material then injects it into a mold. Injection molding machines, or presses, are rated by tonnage, which expresses the amount of clamping force that the machine can exert to keep the mold closed during the process. Most polymers can be injection molded. The types of products that are molded are wide and varied, ranging from large automotive parts to tiny gears. Navigate from the Injection Molding Zone to more specific topics on all-electric/hybrid machine technology, liquid-silicone rubber molding, micro-molding and multiu-component molding.

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Is dosing good enough? Do I need a Blender? Let Maguire walk you through the basics, process integration and more.


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Watch video, download datasheets and more in the Plastics Conveying Knowledge Center.

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Learn about continuous feeder types and their operation.

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Sooner or later you will need to purge your machine. Which material should you use to purge your screw and barrel?

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