PT ZONE: Injection Molding

INJECTION MOLDING: Small-Shot LSR Press for Clean Rooms
Suited to quick changeovers and short runs. More (+)
Coinjected Plastic Can Passes Key Food-Safety Tests
Double-seamed metal lid passes standard leakage tests at up to 121 C. More (+)

MOST RECENT CONTENT: Injection Molding

TOOLING: Designing Molds for Easy Maintenance in the Press, Part 1

Attention to design of cooling, ejection, and slides can save downtime and maintenance headaches.

INJECTION MOLDING: Develop Guidelines—Not Strict Procedures— For a Robust Molding Process

‘Fool-proof’ dos and don’ts will prove foolhardy in a process with so many variables. You aren’t slinging burgers.

Save the Date: Molding 2016, March 29-31

Industry’s preeminent technical conference on injection molding will have broader appeal next year.

Large & Medium-Sized Plants Expand

Smaller operations might be struggling, but the heart of the industry is growing.

Molder Expands Plant, But That’s Just the Beginning

Wescon cuts ribbon on a new addition and adds presses as part of a strategic plan to double its business.

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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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