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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Knowledge Center

Insights into plastics technologies from industry experts.

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Part 1: Back to Basics on Mold Venting

Here’s what you need to know to improve the quality of your parts and to protect your molds.

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Molder Increases Capabilities—But Not Risk—With Flexible Two-Shot Technology

A customer request for multi-material molding presented a market opportunity and potential financial peril: How do you add two-shot without also overextending yourself from an investment perspective?

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Upgraded Two-Platen, Servo-Hydraulic Press Now for U.S.

Absolute Haitian’s Jupiter III said to be ideal for large parts such as trash bins, crates, automotive parts and appliance parts where high surface quality is critical.