Industrial sourcing · China to Europe

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Buyer guide · Plastics & molding

Plastic granulator from China

In Chinese listings, granulator can mean a knife mill that cuts scrap into regrind or an extrusion line that melts it into pellets, so the first risk is being quoted the wrong machine.

Ask about this machine ↗Where the numbers come from

Written and listings checked 30 September 2026. Every figure on this page names its source.

What you are actually comparing.

Two quotes, one machine name

What hides inside the price

Knife mill or pelletizer

A knife mill cuts solid plastic into flakes through a screen. A pelletizing line melts, filters and cuts pellets. State which you need in the first message, in plain words.

Beside the press or central

A small, slow granulator next to a molding machine takes sprues and runners straight back into the hopper. A central granulator handles rejects from many machines at higher speed and more noise.

Fines and dust

Regrind with too much dust melts unevenly when mixed back with virgin material. Ask about rotor speed, knife gap setting and whether a dust separator is offered.

Cleaning between colors

If you change color or polymer often, ask how the chamber opens and how long a full clean takes.

Before you ask for a price.

Send these with the enquiry. Without them, any number a factory gives you is a guess dressed as a quotation.

What goes in: sprues, runners, rejects or film, and their size.
Polymer, including glass-filled grades that wear knives fast.
Kilograms per hour and regrind size your molding machine accepts.
Beside-the-press or central use.
How often you change color or material.

Turn the claim into a demonstration.

Require this	A pass looks like
Granulate a timed batch of your sprues or rejects.	Hourly weight meets the offer, with no bridging in the hopper.
Sieve the regrind.	Dust fraction at or below the level agreed before the test.
Open, clean and close the chamber.	A full clean done within the time stated in the offer.

The documents that must arrive with it.

EU Declaration of Conformity under 2006/42/EC, or Regulation (EU) 2023/1230 from 20 January 2027.
Risk assessment; ask whether EN 12012-1, for granulators, was applied.
Knife and screen drawings, with the knife gap setting.

The one people forget. The knife gap setting procedure. A wrong gap after regrinding knives raises the dust in every batch.

When this is the wrong machine.

Buy something else if

Named, not hedged

You need pellets to sell or to feed an extruder.

A plastic pelletizing machine.

Your scrap is bulky lumps or baled film.

An industrial plastic shredder ahead of the granulator.

Where the numbers come from.

We name the kind of source, how many and when, and never the factory. Listed prices are asking prices, not landed cost. Where we do not hold a fact we say so: that is a GAP, not an estimate.

Listings · 14Fourteen marketplace listings under plastic granulator, checked September 2026: nine were melt pelletizing lines and five were knife mills.
Listings · 5The five knife mills, checked September 2026, advertised FOB asking prices from US$3,000 to US$60,000. Asking prices, not landed cost.
GAPGAP - no supplier quotations logged for this machine yet. Three to five quotations for one configuration would give a real price spread.

Related machines.

Plastic crusher. Choose it for heavier rigid scrap such as bottles, crates and pipe.
Plastic pelletizing machine. Choose it when you need pellets, not regrind.

Every machine we source in this area is on the Plastics & molding page. How a project runs, stage by stage, is on how it works, and what it costs is on pricing.

Straight answers

Questions buyers ask about this machine.

What is the best plastic granulator from China?+

For regrind, a knife mill sized to your scrap with low dust and quick cleaning. Confirm it is not a pelletizing line.

Chinese vs European plastic granulator: is the difference worth paying?+

For beside-the-press use on standard polymers, often not. For glass-filled grades and frequent color changes, compare knife steel and cleaning access.

What goes on a plastic granulator inspection checklist?+

Knife gap, rotor balance, chamber interlock, hopper guarding, noise, and a timed run on your scrap.

What CE documentation does a plastic granulator need?+

A Declaration of Conformity with its serial number, a manual in your language and the risk assessment behind it.

Contact

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