Machine Types
What each machine in a recycling line does, how the machine families differ, and which one a given input actually needs.
Browse 2 articlesKnowledge & Support
RetechPedia
A technical knowledge base for plastic recycling — machine types, process know-how, configuration choices, troubleshooting and plant engineering. Written for the decisions a project actually has to make, not for company news.
What This Is
An Engineering Reference, Not a Blog
Every article answers a question that comes up during a real project. Where an answer depends on your material or your site, the article says so instead of giving a figure that would not survive contact with the application.
15 Technical articles
7 Topic categories
51 Questions in the FAQ
Categories
Browse by Topic
Seven categories, from what a machine does to how a plant is laid out. The URL structure is fixed and will not change as more articles are added.
Core Components
The parts that decide output quality and running cost: blades, screens, filtration, seals and drive components.
Browse 2 articlesProcess Know-how
How the process stages fit together: dewatering, drying, extrusion, filtration and pelletizing.
Browse 3 articlesConfiguration & Options
Optional modules and configuration choices, and the input conditions that justify each one.
Browse 2 articlesTroubleshooting & Maintenance
How to trace a drop in output quality or capacity back to its actual cause.
Browse 2 articlesMaterial Recycling Guides
How the material itself determines the process route, the contamination strategy and the achievable output.
Browse 2 articlesPlant Engineering
Turning a machine list into a plant: layout, utilities, water treatment and site preparation.
Browse 2 articlesFeatured
Start Here
One article from each category — enough to follow the whole process from material to plant.
Machine Types
Shredder vs. Crusher: What Is the Difference?
The two names are used interchangeably in conversation, but they reduce size in different ways, accept different input and produce a different particle.
Read articleCore Components
Crusher Blades and Screens: The Parts That Set Output Quality
Two consumable items — the blades and the screen — decide the particle size, the cleanliness the washing stages can achieve, and the running cost of the whole line.
Read articleProcess Know-how
Single-Stage vs. Two-Stage Pelletizing: When Each One Is Right
The difference is not quality for its own sake. It is how much contamination, moisture and filtration demand the process has to absorb before the die.
Read articleConfiguration & Options
Cold Washing vs. Hot Washing: When Each Is Required
Hot washing is not a premium version of cold washing. It is a different mechanism, used for contamination that cold water cannot release.
Read articleTroubleshooting & Maintenance
Tracing Pellet Quality Problems: Moisture, Fines and Inconsistent Shape
Most pellet quality problems are traceable to a specific stage. The difficulty is knowing which stage to look at first.
Read articleMaterial Recycling Guides
PET vs. HDPE vs. PP: How the Material Decides the Process Route
Three of the most common recycling polymers, three different process routes — and the differences come from density and form, not from preference.
Read articleResources
Four Ways to Find an Answer
RetechPedia sits alongside three other support sections. Which one you want depends on the kind of answer you need.
RetechPedia
Explains how something works and why it is configured that way.
Frequently Asked Questions
Answers the short, direct questions: price, lead time, capacity, service.
Download Center
Supplies the documents: catalogs, system brochures, solution brochures, data sheets.
Videos
Shows the equipment running, in the factory and at customer sites.
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