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polystyrene

Prices of PP, PET Drop; PE, PS and PVC to Follow

Going into fourth quarter, prices of the five commodity resins were heading downward, barring supply interruptions.

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best practices

Fighting Dust and Noise in Regrind Operations

Mayhew Basque Plastics implemented lower speed granulators to deal with challenging materials.

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top shops

Annual Benchmarking Survey of Injection Molders Released

Plastics Technology Top Shops Benchmarking Survey provided both unanimous responses and divided results, but pervasive throughout is the sense of an industry still grappling with the aftermath of 2020’s global pandemic.

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Processing Plant Tour

Making Gains in the Drain Game

AWD blends extrusion and thermoforming technologies with plenty of home-brewed equipment and processes to keep water away from where it isn’t supposed to be.  

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Automation

Injection Molder Amplifies Automation for Optimized Production

AIM Processing has parlayed small part molding expertise and aggressive automation, even for short run production, into a highly successful custom molding business.

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Compounding

Sirmax Adapts Integrated Recycling Approach to US Supply Conditions

Integrating compounding and recycling to leverage untapped postindustrial recycling feedstocks.

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Technology in Depth

SPONSORED

Precision Processing Requires Precision Equipment

Moretto offers plastics processors and micromolders for a broad suite of auxiliary solutions targeted specifically for precision processing.

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Film Extrusion

Materials Suppliers Team on PFAS-Free Solutions

Baerlocher PFAS-fee process aid passes muster in resin manufacturer’s testing on production-sized blown film line.

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Research Deems Bioplastics, Wood Pulp a Sustainable, Economic Alternative for Rigid Packaging

Farrel Pomini and FPInnovations produce biodegradable compound for molding, extrusion and thermoforming applications.

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Essential Reading

best practices

Medical Tubing: Use Simulation to Troubleshoot, Optimize Processing & Dies

Extrusion simulations can be useful in anticipating issues and running “what-if” scenarios to size extruders and design dies for extrusion projects. It should be used at early stages of any project to avoid trial and error and remaking tooling.  

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Why Are There No 'Universal' Screws for All Polymers?

There’s a simple answer: Because all plastics are not the same. 

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Three Key Decisions for an Optimal Ejection System

When determining the best ejection option for a tool, molders must consider the ejector’s surface area, location and style.

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best practices

Ensuring Repeatability: The Key to Effective Injection Molding Automation

One of automation’s key promises is repeatability: the same movement to the same location, time and time again. But to achieve that, all elements involved — robot, machine, EOAT, mold — must be in and stay in alignment.

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In Single Screw Extruders, Mixing Starts in the Melting Process

While the melting process does not provide perfect mixing, this study shows that mixing is indeed initiated during melting.  

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Starting or Restarting an Injection Molding Machine — What Works Best?

Successfully starting or restarting an injection molding machine is less about ticking boxes on a rote checklist and more about individually assessing each processing scenario and its unique variables.

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Latest Issue

Latest Issue

Latest News and Products

Injection Molded Parts Competition Now Accepting Entries

Plastics Technology’s Hot Shots parts competition is accepting submissions for the 2025 contest, with winners to be announced at PTXPO 2025.

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Temperature Control Unit (TCU) Modulates Heat Output in Real Time

Delta T Systems’ Smart series water TCU features “Vari-Heat” technology for greater precision and efficiency.

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Tooling

Cooling Bore Creates Turbulent Flow

Hasco says its Cooling Tornado facilitates turbulent flow, boosting cooling effectiveness by up to 20%.

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Automation

Danish End-of-Arm-Tool (EOAT) Supplier Adds North American Distribution

Globeius is now distributing Roborex EOAT parts for the North American plastics industry, with online purchasing available.

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3Devo Filament Maker Two Enhances Extrusion Control

The machine includes an upgraded screw drive, monitoring and user interface for enhanced filament production.

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Postconsumer

PET Chemical Recycling Process Qualified and Commercialized

Process will be offered as a license package globally by Axens.

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Corona AFX-2000 Beam-Shaping Laser Boosts Productivity for LPBF Additive Manufacturing

Formnext 2024: The laser’s increased power results in higher productivity and lower cost per part, while maintaining the stability needed to produce high-quality parts.

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Farrel Pomini Earns EcoVadis Medal

Company recognized for sustainable management system, environmental impact and procurement practices.

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New 2024 Twin Screw Report
Masters of Blending
Flow Meters display cooling water flow and temp
TOMRA GAINnext PET Cleaner