Plastic Granulators

Recycling SolutionsPlastic Granulators

Plastic Granulator Machines for Recycling & In-House Regrind

Compare compact, wet, heavy-duty and specialist pipe or sheet granulators. Match the feed opening, cutting system and screen to your scrap and downstream regrind requirements.

Plastic granulator machine for recycling
Lineup

Choose a Granulator for Your Plastic Scrap

Select by scrap form and feeding needs, then confirm wet or dry operation, screen selection and the downstream process.

Machine Comparison

Compare Granulator Types by Feedstock

Use this guide to choose a machine family. Open the matching product page for its own model specifications and reference configuration.

Machine familyTypical feedKey selection checkTypical next step
Compact crusherSprues, runners and small rigid rejectsPart dimensions, resin and scrap temperatureCollection and approved in-house reuse
Integrated shredder-granulatorBulky scrap needing two stagesShredder feed, granulator load and discharge sizeRegrind for the selected recycling process
PVC pipe & profile granulatorLong rigid PVC pipes and profilesSection size, wall thickness and hopper lengthRegrind for compatible PVC reprocessing
Wet granulatorBottles, containers or suitable flexible scrapRotor suitability, water circuit and downstream cleaningPre-washed flakes for separation, washing and drying
Large-diameter pipe crusherLarge-diameter compatible plastic pipesDiameter, wall thickness and hydraulic feeding limitsSize-reduced material for further processing
Heavy-duty rigid granulatorDrums, crates, pallets and large rejectsOpening size, feed control and need for pre-shreddingRigid regrind for washing or compatible reuse
Horizontal sheet & tray crusherWide sheet scrap, trays and rigid panelsMaterial width, thickness and horizontal feed arrangementRegrind for collection or compatible reuse

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Confirm the exact model, motor power, cutting chamber, knives, screen and utilities in your quotation. Throughput depends on the feedstock, screen, feeding method and required output quality.

Selection

Four Checks Before Sizing Your Granulator

Provide these details so the machine, feeding system and downstream equipment can be matched to the same requirements.

1. Describe the material and shape

State the polymer, part dimensions, wall thickness, bulk density and scrap temperature. Photos and representative samples help assess feeding, cutting and any need for pre-shredding.

2. Define sustained output

Specify the required net acceptable regrind per hour, operating hours and feed consistency. Match capacity and buffers to the whole process, including changeovers and downstream limits.

3. Specify the regrind requirement

Agree the target particle-size distribution and fines limit with the next process or buyer. Test candidate screens with your material; screen-hole diameter alone does not guarantee maximum particle size. Read the screen selection guide.

4. Check contamination and utilities

Record moisture, labels, sand, metal and incompatible polymers. Plan sorting and metal removal before granulation, then confirm water handling, extraction, electrical supply and the downstream cleaning route.

Read the complete granulator selection guide for more detail on feeding, cutting systems and configuration.

Process

How Granulation Fits Your Recycling Process

Rotating and stationary knives cut the plastic; a screen helps control discharge. The regrind may be reused in a suitable process or sent to washing, drying and extrusion.

Equipment / stageTypical inputMain taskOutput
ShredderBulky or difficult-to-feed plastic scrapPrimary size reduction to prepare material for the next stageCoarse pieces; size depends on the shredder configuration
GranulatorSuitable scrap or pre-shredded plasticKnife cutting with screened dischargeRegrind or flakes for compatible reuse or further processing
PulverizerPrepared material compatible with the grinding processFine grinding for an agreed powder specificationPowder for the intended application
Extrusion pelletizing linePrepared, compatible plastic feedstockMelting, filtration and pellet cutting with suitable drying or degassingRecycled pellets; quality depends on feed and line configuration

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A compact granulator can serve an in-house scrap loop. Bulky waste may need a shredder first, while contaminated material needs a defined cleaning route. Compare shredder, granulator and pelletizer roles. For fine grinding, see granulator vs. grinder. For a complete project, start with Recycling Solutions.

Applications

Match the Granulator to the Downstream Process

The same polymer can need different feeding, cutting and cleaning arrangements depending on its form and condition.

PET Bottles

Prepare flakes for sorting, washing and drying. Bottle-to-bottle projects also need appropriate decontamination and quality controls. Read the PET line planning guide.

HDPE Drums, Crates & IBC Containers

Assess the plastic component size and thickness. Remove metal cages, fittings and other foreign material, and confirm whether whole parts fit the approved feeding arrangement.

PP Woven Bags & PE Film

Confirm that the rotor, feed system and discharge arrangement suit flexible material. Wet granulation can be part of a cleaning route with downstream separation and drying.

PVC Pipes, Profiles & Sheets

Select the feed arrangement around length, diameter, width and wall thickness. Separate incompatible materials and remove metal attachments before compatible PVC reprocessing.

In-House Runners & Reject Parts

A compact crusher can collect scrap near molding or extrusion equipment. Match resin, scrap temperature and regrind quality to the plant’s approved reuse specification.

Glass- or Fiber-Filled Plastics

Use representative samples to assess cutting performance and wear. Confirm suitable knives, wear protection and dust collection for the actual compound and part geometry.

Configuration

Confirm the Cutting System and Supporting Equipment

Configure the selected machine family around the feedstock, output requirements and available plant services.

Feeding and Load Control

Select the hopper, conveyor or hydraulic feeding arrangement for the scrap geometry. Confirm overload response and integration with upstream and downstream equipment.

Rotor and Knives

Match rotor geometry, knife material and knife setting to the application. D2 or SKD-11 configurations are available on relevant models; confirm the actual specification in the quotation.

Screen and Discharge

Agree screen opening, construction and access for changes. Check conveying or wet discharge capacity so regrind can leave the chamber consistently.

Water, Wear and Access

For wet or abrasive streams, confirm water handling, suitable wetted parts and wear protection. Leave access for inspection, cleaning and lifting knives or screens.

Maintenance

Use a Maintenance Schedule Matched to Your Machine

Follow the supplied manual and record wear, load and output trends. Isolate the machine and secure the rotor before opening the cutting chamber.

Knives and Cutting Gap

Inspect edges and set the gap to the approved specification for that rotor and knife arrangement. Review changes in load, noise, fines and particle shape.

Screens and Wear Surfaces

Check for cracks, deformation, enlarged holes and blocked discharge. Replace damaged parts and recheck output quality after a screen change. See how screens affect regrind quality.

Sharpening or Replacement

Base servicing on edge condition and the manufacturer’s regrind limits. Replace knives that are damaged or below their usable dimensions; a fixed number of sharpening cycles is not suitable for every blade.

Bearings, Belts and Drives

Use the lubrication and tensioning instructions for the installed components. Track temperature, vibration and wear. See the maintenance guide and troubleshooting guide.

FAQ

Plastic Granulator – Frequently Asked Questions

Answers to common questions about machine choice, price, screens, knives, power and complete-line planning.

Get a Custom Solution & Quote

To get latest prices, lead times, and a crusher or granulator matched to your material and target flake size, send us your requirements. If you need a full line from shredding to washing, drying, and pelletizing, start with Recycling Solutions.

Machine selection based on feedstock, output size, and throughput
Support for complete lines from shredding through pelletizing
Fast quotation with layout and utilities guidance

Tell us what you need

Material type, target kg/h, preferred flake size, wet or dry process, and whether this is a standalone machine or part of a complete recycling line.

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