A plastic recycling line converts collected or production-scrap plastic into reusable flakes or pellets through a sequence of sorting, size reduction, cleaning, drying, and, when required, extrusion and pelletizing. The right configuration depends on the polymer, material form, contamination, required output quality, and intended end use. A PET bottle line, for example, has different washing and drying needs from a line processing PE or PP film. Before comparing suppliers, define your feedstock and the product you need the line to deliver.
For more information, please visit our website.
This guide is for recycling businesses, plastic product manufacturers, and project teams evaluating equipment for a new or upgraded recycling operation. It is also useful for buyers who need to connect washing equipment with an extruder and pelletizing system. If you are still assessing the material stream, use the selection framework below to organize the information a supplier will need. The guide is not a substitute for a feedstock trial or a project-specific technical design.
A recycling line is a coordinated set of machines that prepares plastic waste for reuse. Depending on the material and the required output, the process may produce clean flakes or go further to melt, filter, and pelletize the plastic. Not every project needs every stage: clean manufacturing scrap may need less washing than post-consumer packaging. The line should be designed around the actual feedstock and product specification.
These stages are a process overview, not a guarantee that every line uses the same equipment or sequence. A supplier should identify which stages are included, what each stage is intended to remove or achieve, and which operating assumptions apply. Ask whether the quoted output is measured as incoming feed, washed flakes, or finished pellets. Those figures are not interchangeable.
PET bottles commonly require a process that addresses labels, caps, dirt, and other bottle-associated materials before the flakes are reused. Rigid PE and PP products may also need sorting, size reduction, washing, and drying, but their product specifications and process details can differ from PET. For any rigid-plastic project, clarify the polymer mix and whether the goal is flake production or pellet production. Do not assume a line configured for one resin will deliver the same result with another.
Film can be difficult to convey and wash because its light, flexible form behaves differently from rigid pieces. A film recycling project may require equipment selected specifically for feeding, agglomeration or densification where appropriate, washing, and moisture management. The need for extrusion depends on whether the intended output is cleaned material or pellets. Ask suppliers to review the film’s print, soil, moisture, and polymer composition before recommending a configuration.
Mixed plastic streams increase the importance of sorting and contamination control. A washing line cannot automatically correct an unsuitable polymer mix, and melt filtration has limits when contamination is incompatible or excessive. Provide representative material samples or detailed photographs and composition information when requesting a proposal. Where feedstock changes over time, discuss how the line will handle that variation and what adjustments may be needed.
Document the material type, physical form, contamination, and expected variation in incoming supply. Then specify the product you want to sell or use: washed flakes, regrind, or pellets. Include quality requirements such as particle size, residual contamination, or moisture limits only when you have a defined target. This prevents suppliers from quoting different process scopes under the same “capacity” label.
State the required throughput in kg/h and explain whether it refers to feed input or finished output. Capacity depends on material characteristics and the complete line configuration, so request the supplier’s assumptions rather than relying on a headline figure. For instance, an inquiry might use an illustrative target of 500 kg/h of incoming feed, but this is a project input—not a general performance expectation. Ask the supplier to clarify the material conditions under which any quoted capacity applies.
If you want to learn more, please visit our website BOGDA.
Use units and test methods where possible. An inquiry might specify a target flake dimension of 10 mm or a maximum moisture level of 1% as examples of measurable requirements; these figures are not universal recommendations and must be validated for the resin, process, and end use. State how the result will be checked and at which point in the line. This makes supplier responses easier to compare and reduces the risk of different interpretations.
Ask for the proposed line layout, equipment footprint, electrical requirements, water demand, drainage needs, and any supporting systems included in the scope. Confirm how material moves between stages and which conveyors, tanks, pumps, or storage units are supplied. If extrusion is part of the project, discuss the interface between the washing and drying stages and the extruder. Installation conditions and local utility availability can affect the final design.
There is no reliable single price for a plastic recycling line without a defined scope. Cost can vary with feedstock, throughput target, washing intensity, automation, material of construction, extrusion and pelletizing requirements, and the number of included auxiliary systems. Ask for an itemized quotation that identifies equipment, installation or commissioning scope, spare parts, and exclusions. A low initial price is difficult to evaluate if key stages or services are omitted.
Minimum order quantities are generally less relevant to a complete custom line than the agreed configuration and project scope; confirm the supplier’s commercial terms directly. Lead time should also be quoted for the specific design and should clarify when the schedule begins, what approvals are required, and whether shipping or installation is included. Avoid comparing delivery estimates unless their start points and included activities are the same. Request written assumptions alongside the commercial offer.
One common mistake is selecting equipment by capacity alone without describing the feedstock. Another is assuming that washing will solve polymer-mixing or contamination problems that should be addressed through sorting and process design. Buyers can also overlook drying, wastewater handling, storage, or the connection between line stages when comparing quotations. Request a process-flow diagram and confirm that every necessary stage is accounted for.
A further risk is specifying a finished-product quality target without agreeing how it will be measured. Discuss sampling location, test method, and operating conditions before purchase. If the material supply is inconsistent, tell the supplier rather than presenting only the cleanest sample. A realistic design conversation is more useful than a promise based on unspecified feedstock.
As a plastic extruder supplier, BOGDA can discuss extrusion and pelletizing requirements as part of a broader plastic recycling project. Share the polymer type, feedstock form, contamination profile, target output, and desired product so the proposed equipment scope can be evaluated against your process. For projects that include upstream washing or preparation, clarify the interface between those stages and the extrusion system. The final configuration should be confirmed against your material and operating requirements.
A suitable plastic recycling line is the one designed for your feedstock and the product you intend to make—not simply the line with the largest stated capacity. Begin by documenting material type, contamination, required throughput, output form, and measurable quality targets. Then request a process flow, itemized scope, utility information, and explicit capacity assumptions from each supplier. BOGDA can review your extrusion and pelletizing needs as part of that discussion; provide your project details to begin a configuration inquiry.
If you want to learn more, please visit our website Plastic Recycling Line.