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Beyond just the “invoice price” of a barrel, processors should consider factors like the composition of the inlay, quality of the backing material, straightness, concentricity, machining imperfections and packaging/handling, to understand the true cost of owning a barrel.

There are a few variations of the two-shot molding process, and each has implications for tool design.

Processors can extend the life of equipment and improve productivity by coupling a preventive-maintenance program for their screws and barrels with routine use of chemical purging compounds..

Cooling is crucial to the molding process yet frequently overlooked. Here are some insights to consider.

An overlooked factor in injection molding has outsize influence on the process and part quality.

Some creative thinking with conventional technology, like small cooling lines and bubblers, can generate big improvements in cooling and cycle times.

Lifters can cause tool maintenance, repair, and processing issues if not designed properly. Here we begin a series on how to avoid all this.

Flash, venting, cooling, gating, or sticking problems? Better to fix the tool than distort your process.

This is the final part of a series on tooling in the press. This column will cover repairs that can be accomplished in the press.

Pay attention to water leaks and rust, proper grease selection, vent buildup, and checks for wear.