Hard Plastic Pelletizing Line
For HDPE, PP, ABS, PS, and mixed rigid regrind where feeding is denser and filtration, venting, and melt stability drive line selection.
Recycling Pelletizing Hub
Plastic Pelletizing Lines
Compare plastic pelletizing line routes before requesting a quote: cutter-compactor systems for film, single-screw routes for rigid regrind, PET flake pelletizing, foam densifying, and compounding-driven lines.
- Built around your feedstock, capacity, and output
- Modular processing stages matched to the application
- Plant layout and utilities customized for your site
- Built around your feedstock, capacity, and output
- Modular processing stages matched to the application
- Plant layout and utilities customized for your site
Backed by Documented Performance Targets
CE Certified Manufacturing
24/7 Global Technical Support
12-Month Comprehensive Warranty
Performance KPI Validation
Custom ROI Modeling
Turnkey Installation & Training
Dedicated Pelletizing Line Pages
Use these focused pages when you already know whether your project is driven by rigid regrind or washed film and need a more specific route.
View Hard Plastic Pelletizing Line
Film Compacting Pelletizing Line
For washed PE/PP film, woven bags, and raffia where low bulk density requires cutting, densifying, and stable extrusion feeding in one route.
Custom Recycling Pelletizing Line
For projects that still need engineering guidance on stage count, degassing, filtration, pelletizing method, and future capacity expansion.
Core Recycling Pelletizing Process
Every route follows the same four process decisions, but each feedstock needs a different level of conditioning.
1
Prepare and Condition Feedstock
Sort, wash, dry, squeeze, or densify until the extruder receives a stable material form.
2
Stabilize Feeding and Melting
Match the feeder and screw design to bulk density so melt pressure does not surge.
3
Degas and Filter the Melt
Remove moisture, volatiles, paper, gels, and solid contamination before pellet formation.
4
Cut, Cool, and Handle Pellets
Select water-ring, strand, or underwater cutting and size cooling, drying, screening, and conveying together.
Compare Recycling Pelletizing Line Types
Start with the system family that matches the physical form of the feedstock and the required pellet specification.
Cutter Compactor Pelletizing Line — Film / Raffia
Cuts and compacts washed PE/PP film, raffia, and woven bags before extrusion to stabilize low-bulk-density feeding.
Rigid Plastic Pelletizing Line — Rigid Regrind
Processes denser HDPE, PP, ABS, and PS regrind with feeding, filtration, and venting matched to rigid flakes.
Water Ring Pelletizing Line — Cutting Method
Uses die-face water-ring cutting for continuous polyolefin pellet production and compact downstream handling.
PET Flakes Pelletizer — Bottle Flakes
Combines strict drying, vacuum, residence-time, and screw control for moisture-sensitive PET bottle flakes.
EPS Foam Pelletizing Line — Foam Recycling
Pre-crushes and densifies EPS, EPE, or XPS so low-density foam can enter the melt section consistently.
Twin-Screw Extruder System — Compounding
Provides stronger mixing, additive dispersion, side feeding, and devolatilization for compounding-driven projects.
Typical Production Scenarios
Use the closest material scenario as a starting point, then confirm it with a material test and pellet target.
Washed PE Film
Usually needs cutter-compactor feeding, strong venting, and stable water-ring or strand cutting.
Printed PP Raffia and Woven Bags
Often needs additional degassing and filtration for ink, coatings, and volatile residue.
Rigid HDPE or PP Flakes
Uses steadier rigid-flake feeding with filtration sized to labels, fines, and mixed wall sections.
PET Bottle Flakes
Requires strict drying, vacuum performance, and residence-time control for sheet, strap, or fiber feed.
EPS, EPE, or XPS Foam
Must reduce volume and trapped gas before the material can form a stable melt.
Recycled Resin with Fillers
Usually points to a twin-screw route when dispersion, dosing, and formulation control matter.
Select the Line from Process Inputs
These four inputs are more useful than comparing installed motor power alone.
Feedstock Form and Bulk Density
State whether the feed is film, raffia, rigid flake, PET, foam, or a compoundable blend.
Moisture and Contamination
Quantify water, ink, paper, metal, fines, adhesives, and other volatiles after preparation.
Pellet Method and End Use
Define pellet geometry and whether output is for resale, internal reuse, sheet, strap, or compounding.
Stage Count and Expansion Plan
Confirm single or double stage, filtration duty, utilities, maintenance access, and future capacity.
Pelletizing Route Decision Matrix
Use this matrix to identify the process route before selecting machine size.
| Decision Input | Route Signal | Confirm Before Quotation |
|---|---|---|
| Material form | Film needs compaction; rigid flake needs stable metering; foam needs densifying | Bulk density, particle size, and hourly mass |
| Moisture and volatiles | Higher load points to stronger vacuum or a second extrusion stage | Measured moisture and type of ink, adhesive, or coating |
| Melt contamination | Contamination drives screen changer area and filtration strategy | Paper, metal, fines, gels, and acceptable pressure rise |
| Pellet specification | Polymer and end use determine water-ring, strand, or underwater cutting | Pellet geometry, MFI, cooling duty, and buyer specification |
Frequently Asked Questions
What is the difference between a single-stage and double-stage recycling pelletizing line?
Single-stage layouts suit cleaner or denser feedstocks with moderate venting needs. Double-stage routes are usually chosen when washed film, printed scrap, or higher contamination demand extra degassing and melt stabilization.
When should I choose water-ring pelletizing instead of strand pelletizing?
Water-ring pelletizing is common for PE and PP recycled polyolefins when rounded pellets and continuous cutting matter. Strand pelletizing is often preferred for stiffer materials or jobs where off-die cooling and cut separation are easier to control.
Can one line handle both film and rigid plastic?
Sometimes, but only within a narrow material window. A shared line usually forces compromises in feeding, screw design, and filtration, so separate film and rigid routes are often more stable at production scale.
Does PET require a dedicated PET flakes pelletizer or a twin-screw system?
PET usually needs stricter drying and venting than polyolefins. Dedicated PET layouts or twin-screw systems become relevant when moisture sensitivity, IV control, or formulation demands are higher than a general-purpose line can comfortably manage.
What contamination or moisture level is acceptable for pelletizing?
There is no universal number because resin type, line design, and pellet target change the limit. The correct starting point is to define residual moisture, paper, metal, and fines after washing and then size filtration and vacuum around the real feedstock.
How should I plan for future capacity expansion?
Start by fixing the feedstock family and pellet quality target, then leave room for larger drives, stronger filtration, and downstream cooling or conveying upgrades. Expansion works better when the process logic stays consistent across future stages.
Need the right pelletizing route, not just a machine quote?
Send material photos, hourly target, contamination level, and desired pellet application. Rumtoo can recommend the system family, stage layout, and pelletizing method that fit the job.
Expert response within 24 hours. No obligation quote.