PT ZONE: Injection Molding

PT Article Mack Molding Appoints New VP of Procurement
The company promoted Marc Colety, a 20-year veteran of the company, to the role. More (+)
Contraction Accelerates for Third Month
Index has been trending down since last March. More (+)

MOST RECENT CONTENT: Injection Molding

What Comes Around Is Going Around…Very Quickly

The game is changing. Reshoring is occurring at a rate faster than most expected.

INJECTION MOLDING: Understanding Machine vs. Plastic Variables

Why setup sheets, DOEs, validations, etc. may not yield the results they should.

Advanced Styrenic Lets Molder Shed New Light On Automotive Part

Polyoptics teamed up with Styrolution to develop a ‘breakthrough’ process for light guides.

New Materials Offer Cost, Performance Advantages to PEEK in Automotive

Two new families of PAEK offer combination of economy and performance for demanding automotive applications.

Captive Molder Gives New Blenders A ‘Whirl’

By updating presses with multi-component blenders, Whirley Drinkworks drastically slashes colorant costs.

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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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» Blending & Dosing

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


» Plastics Conveying

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

» Plastics Drying

Novatec shares their knowledge of dryers and drying techniques.

» Plastics Feeding

Learn about continuous feeder types and their operation.

» Purging Compound

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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