best practices
Micromolding Gets Bigger at Tessy Plastics
Micro parts are a tiny but fast-growing segment of its custom molding business, with potential to expand beyond the medical sector.
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Energy-Efficient Granulating
Granulators are notorious energy hogs, but motors and designs have improved energy efficiency over the years. Proper selection and maintenance can also do a lot to avoid wasted energy cost.
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Five Steps Toward Better Plug Assists
With careful planning and adherence to best practices, crafting the right plug assist can put you on the path to high-quality, repeatable parts.
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Coextruding Blown Film Needs Deeper Understanding of Resin Rheology & Die Design
More film processors are investing in lines with nine or more layers. With more resin possibilities and combinations coming into play, it’s important to learn more about material rheology and compatibility, as well as die design.
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Robot End-of-Arm Tooling: Making a Big Difference
Often overlooked as a small part of an automation system, clever end-of-arm tooling techniques and designs can improve part quality, heighten efficiency, and eliminate headaches for any molder.
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Molder’s Mantra: Go Lean, Stay Green
All-electric presses combined with home-built technologies and energy-efficient initiatives at PMT.
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TOOLING: Ejectors: Watch That ‘Unsupported Length’
It may be an unfamiliar term, but it’s the key to preventing ejector-pin deflection and breakage
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BLOW MOLDING: Single- or Two-Stage PET Bottle Making: Get to Know Your Options
The decision which process to use can be quite complex. Here are pointers that will help you to choose the right one for your application
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EXTRUSION: Avoid General ‘Pump Ratios’ On Two-Stage Screws
Instead, rely on basic data and calculations to determine the proper depth of the first and second metering sections
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INJECTION: First to Second Stage Transfer: Should There Be ‘Bounce-Back’?
How much screw ‘jumping’ or bounce-back can your process tolerate? The answer is no surprise: It depends
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