Drying
Dryers are used to minimize or eliminate problems that moisture in the plastics cause during processing. Includes resin drying; hygroscopic resins; desiccant dryer; wheel dryer; vacuum dryer; drying PET; drying PC; drying ABS; drying nylon.
ESSENTIAL READING
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Bozzelli’s Guide To Specifying a Dryer
Here's a list of 17 things to do when looking for new drying equipment.
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Why (and What) You Need to Dry
Other than polyolefins, almost every other polymer exhibits some level of polarity and therefore can absorb a certain amount of moisture from the atmosphere. Here’s a look at some of these materials, and what needs to be done to dry them.
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Follow These Seven Management Tips for More Consistent Resin Drying
Equipment and advice sure help, but ultimately, good management makes the difference.
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Spring Tips for Dryer Maintenance
The warm, humid weather really puts a strain on both the regeneration and process, so it is important that everything is in perfect working order. The time to check is now.
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What You Need to Know About Drying Specialty Nylons
PPA is being used more frequently by molders for demanding high-heat applications in automotive and other markets. While in the nylon family, it does not dry quite like nylon. Follow these tips.
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Latest Drying News And Updates
Movacolor, Labotek Unit Combines Drying, Feeding
System billed as a one-of-a-kind machine that combines material drying and additive dosing in one unit.
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Shibaura Launches All-Electric, Hydraulic Molding Machines and Auxiliary Line
The Japanese maker of injection molding machines will display its EC-SXIII all-electric and S-GenXt hydraulic series, supported by in-house-made robots, dryers and chillers.
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AEC Rolls Out Two Compact Desiccant Wheel Dryers
Products aimed at low-throughput processes such as medical molding and extrusion.
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Low-Throughput Dryer Series With Matching Hoopers
Series comes in a throughput range from 3 oz.-15 lbs/hr. and is said to be ideal for medical molding.
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Low-Volume Dryer for Engineering Resins
Target markets are low-volume, high-precision specialty applications in automotive as well as in electronics, connectors and technical molding.
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AI-Powered Drying Technology
Conair’s ResinWorks multihopper drying system automatically maintains process-ready resins at perfect temperatures, prevents overdrying and delivers big energy savings.
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Overcoming Drying Hopper Ambient Air Leaks
Consider using a compressed-air-operated discharge valve. This provides a positive seal when it closes and ensures that no wet ambient air seeps into the drying hopper.
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PTXPO Recap: Smarter Resin Drying & Conveying Automation
Check out what you missed on the PTXPO show floor. In this video, Editorial Director Jim Callari breaks down how AI is changing the game in plastics manufacturing.
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'Smart,' Moisture-Based Drying Technology Enhanced
At NPE2024, Novatec relaunches DryerGenie with a goal to putting an end to drying based on time.
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Blending Specialists ABS Relaunching Thoreson McCosh Dryer Line
NPE2024: Advanced Blending is taking the wraps off reinvigorated Thoreson McCosh drying line.
Read MoreNovatec Putting the ‘Smart’ In Resin Drying, Conveying
NPE2024: Machine builder gets ‘ludicrous’ by rewriting the rules for material drying and conveying.
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Connectivity for Material Handling Offers Greater Visibility
NPE2024: Motan solutions integrate data connectivity.
Read MoreFAQ: Drying
How to dry resins?
Proper drying requires attention to detail in the following areas: temperature and moisture content (dew point) of the inlet air, volumetric flow rate of the air across the pellets, time the material is in the drying hopper, and temperature of the return air coming back from the hopper to the drying unit. There are other areas of concern related to the design and maintenance of the system. This also assumes that a desiccant dryer is being used.
How can I achieve more consistent resin drying?
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Control Initial Moisture Levels in Undried Resin
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Size Dryers Properly
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Dry at Correct Temperature
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Keep Drying Hoppers Full
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Limit Machine-Side Material Inventory
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Keep Airflow Clean and Consistent
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Invest in a Moisture Analyzer
Drying Supplier Categories
- Water, Oil Manifolds & Couplings
- Water Treatment/Filtration Systems
- Heat-Transfer Fluids
- Heat Exchangers
- Chillers
- Hot-Water or Oil-circulating Temperature Controllers
- Heat Pipes & Related Thermal Conductors
- Cooling Towers
- Heaters, Heating Elements
- Used Machinery
- Heat-Recovery Equipment & Systems
- Equipment Cleaning Services
- Ovens, General