PT ZONE: Drying

DRYING: Dryer Slashes Energy Demand
Auto adjustment to load can save up to 75%. More (+)
AUXILIARIES AT NPE: More Control, Flexibility, And Energy Efficiency
These are key trends in the many kinds of auxiliary equipment displayed at this month’s show. You’ll also see equipment designed to be virtually ‘foolproof.’ More (+)


MOST RECENT CONTENT: Drying

Short-Run Specialist Chases Higher Productivity While Staying Lean

How do you automate jobs that run only a few hours? That’s only one of the questions challenging a fast-growing, short-run molder.

Detect When Equipment Needs Maintenance—Before It’s Too Late

New technology to debut next month at NPE warns when preventive maintenance is needed, before equipment failure disrupts production.

AUXILIARIES: Process Cooling, Drying and Material Handling Highlighted

Operator-proof material handling, modular/scalable central chillers, adiabatic cooling towers, and compact desiccant-wheel dryers displayed.

DRYING: New Tower Design Increases Dryer Efficiency

Novel parabolic tower design, unique heater configuration, and optimized airflow are said to maximize efficiency.

COMPOUNDING: Unit Combines Drying, Cooling and Classifying

Targets applications requiring one, two, or all three of its functions—drying, cooling or classifying of extruded pellets

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OVERVIEW:
Drying

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Dryers are used to minimize or eliminate problems that moisture in the plastics cause during processing. If moisture-sensitive polymers like nylon, polycarbonate, PBT, PET and a host of others are not dried prior to processing, the physical properties of that resin/part will be drastically affected. There are various types of drying technologies available, including dual bed desiccant, desiccant wheel, vacuum, oven and infrared. Dryer selection may be dictated by the throughput requirement of the process, as well as price and other features desired.


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» Plastics Drying

Novatec shares their knowledge of dryers and drying techniques.

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