PT ZONE: Injection Molding

PT Article Beach Mold & Tool Announces $23.3 Million Expansion In Indiana
The company plans to purchase several large injection molding presses and to update existing equipment. More (+)
PT Article Fibers Pair With Foam for High-Bending Stiffness at Low Surface Weight
Reduced clamp force, shorter cycles, lower melt viscosity, and higher dimensional stability are just some of the purported benefits of foam injection molding. More (+)

MOST RECENT CONTENT: Injection Molding

Looking to Expand By Acquisition? Here’s How to Be a Better Buyer

M&A expert offers tips for processors looking to make a big buy.

MATERIALS: Fiber-Reinforced & Low-Volatility LSRs

Fiber-reinforced LSR can eliminate an embedded fabric layer.

INJECTION MOLDING: Sensors & Controls at NPE

New approach eliminates damage-prone sensor cables between cavity inserts and the mold base.

‘Industry 4.0’ Demo at Hanover Fair

Linking molding and 3D printing machines and part data via the "cloud" allows "mass customization."

New Design Standards for Molders of Medical Connectors

The goal is to prevent dangerous misconnections through revisions of designs and materials choices.

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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.

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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?

Product Announcements

MATERIALS: Fiber-Reinforced & Low-Volatility LSRs
Momentive Performance Materials Inc. 6/1/2015
INJECTION MOLDING: Sensors & Controls at NPE
Kistler Instrument Corp. 6/1/2015
CONTROLS & DRIVES: Slew of Control Packages For All Processors
Siemens Industry Inc., Solutions, Automation & Drive Technologies 5/18/2015
PURGING: Device Makes Purging Safer, Simpler
Dyna-Purge, Div. of Shuman Plastics, Inc. 4/28/2015
INJECTION MOLDING & EXTRUSION: Screw/Barrel Combo Fights Wear
Nordson XALOY Incorporated 4/28/2015

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