Kako napraviti plastične pelete: Korak-po-korak vodič za PET, HDPE i LDPE
Plastic pellets (granules) are the standard feedstock for injection molding and extrusion. If you
recycle PET bottles, HDPE containers, or LDPE films,
you can turn waste into consistent, sellable material—but only when you control contamination, moisture,
melt quality, and cutting stability.
This guide explains the full pelletizing workflow with buyer-ready checkpoints, and shows what to look
for in a professional peletiranje
linija.
Ključne faze: sortiranje → usitnjavanje → pranje → sušenje → ekstrudiranje → peletiranje
Kritični rizici: miješani polimeri, vlaga, loša filtracija, nestabilno rezanje
Trebate li liniju za peletiranje koja odgovara vašem materijalu i ciljanoj proizvodnji?
See our pelletizing equipment overview and typical configurations (rigid regrind, film, printed
waste, degassing + filtration).
Plastični peletizatori tvrtke Energycle |
2026 Machine
Price List
Proces peletiranja u 7 koraka (što zapravo kontrolira kvalitetu peleta)
If you want stable, saleable pellets, treat each step as a quality gate. Problems usually start early
(sorting/moisture) and only show up later (black specs, bubbles, odor, weak pellets).
1Sakupljanje i sortiranje (zaustavljanje kontaminacije prije nego što počne)
You protect pellet quality by separating polymers and colors early. Mixed PET/PE/PP streams
create unstable melting,
inconsistent properties, and “off-spec” pellets that buyers reject.
- Odvojite po polimeru: PET vs. HDPE vs. LDPE film must run on different
settings (and often different feeding setups). - Uklonite metale: Magneti + detektori metala sprječavaju oštećenje vijaka/bačve.
- Pravilno rukovanje PET bocama: remove caps/labels; use float/sink separation
(PET sinks; most caps/labels float).
2Usitnjavanje / Granulacija (učiniti hranu konzistentnom)
You want uniform flake size so washing works better and the extruder feeds steadily. Oversized
pieces melt unevenly and destabilize pressure.
- Tipična meta pahuljica: ~5–12 mm ovisno o polimeru i sustavu.
- Filmovi zahtijevaju posebno rukovanje: fluffy LDPE/PP film can bridge and starve the
extruder unless you densify/compact it. - Kontrolna točka kupca: ask whether the line includes film
spremna/gustoća za stabilno dozirano isporuku.
3Pranje (vaš najjeftiniji način za poboljšanje vrijednosti peleta)
Čiste čipovi topuju jednoliko i lako se filtriraju. Ostanke (ulje, lepljivo, pijesak, papir)
stvaraju mirise, dim, crne speckle i sagradio se.
- Uobičajeni moduli: friction washer, float/sink tank, topljenje (po potrebi),
izmokrića. - PET napomena: sugars/adhesives and label glue matter; poor cleaning shows up as
žućanje i speckle. - Napomena o LDPE foliji: agricultural film often needs more aggressive washing due
to soil contamination.
4Sušenje (kontrola vlage = stabilna ekstruzija)
You remove water before melting. Moisture turns into steam, creates bubbles, and can degrade
certain polymers—especially PET.
- Mehaničko odvodnjavanje: centrifugalna sušilica brzo uklanja površinsku vodu.
- Termičko sušenje: hot-air or desiccant drying improves stability; PET
typically needs the strictest moisture control. - Kontrolna točka kupca: request target moisture ranges and how the line verifies
them (monitoring, sensors, process control).
5Ekstruzija (stvaranje čiste, homogene taline)
The extruder melts, mixes, pressurizes, and stabilizes the melt for pelletizing. A stable melt
reduces die pressure swings and pellet size drift.
- Temperaturna stabilnost: correct heating zones + screw design prevent burning
and under-melting. - Otplinjavanje (vakuumski ventil): removes volatiles/moisture/odor sources—especially
helpful for printed or slightly wet feed. - Filtriranje: screen packs + screen changers stop unmelted contaminants from
reaching pellets.
6Peletiranje (metoda rezanja određuje ujednačenost peleta)
You turn molten plastic into uniform pellets. Your choice of strand vs. die-face affects
throughput stability, pellet shape, and ease of operation.
- Nasukati: taljenje → niti → vodena kupelj → rezač. Jednostavno i široko korišteno.
- Vodeni prsten (mlaznica): cut at the die; great for continuous operation and
common in PE/PP recycling. - Kontrolna točka kupca: ask how the system controls pellet length when throughput
fluctuates (cutter speed control, pressure feedback).
7Hlađenje, sušenje i osiguranje kvalitete (isporuka proizvoda koji kupci mogu koristiti)
You cool pellets, remove surface moisture, and screen out fines/oversize. You then verify key
metrics that buyers care about.
- Sušenje peleta: centrifugalna sušilica or air drying prevents clumping and
improves packaging. - Prikaz: uklanja sitne/prevelike čestice za dosljedno nizvodno punjenje.
- Primjeri osiguranja kvalitete: appearance (specks), moisture, melt flow index (MFI), bulk
density (as required by buyers).
Napomene specifične za materijal (PET vs. HDPE vs. LDPE)
| Materijal | Što obično pođe po zlu | Što biste trebali kontrolirati | Što pitati svog dobavljača opreme |
|---|---|---|---|
| LJUBIMAC | Degradacija uzrokovana vlagom, žutilo, krhke pelete, nedosljedan IV/MFI | Strogo sušenje, stabilan temperaturni profil, čista filtracija | Cilj i metoda sušenja, konfiguracija otplinjavanja, strategija filtracije, dizajn puža |
| HDPE | Kontaminacija boje, miris od ostataka, crne mrlje od loše filtracije | Kvaliteta pranja, stabilna talina, pouzdana izmjena sita | Vrsta mjenjača sita, robusnost motora/mjenjača, značajke stabilnosti tlaka taline |
| LDPE folija | Nestabilnost hranjenja (premošćivanje), porast taline, loša kontrola veličine peleta | Zbijanje/zgušnjavanje, konzistentno punjenje, prednosti peletiranja s prednje strane matrice | Uključuje li linija kompaktor? Kako sprječava stvaranje mostova u foliji? Preporučeni tip peletizatora? |
will “chase problems” in the extruder. A good system helps, but it cannot magically fix uncontrolled
input.
Metode peletiranja: niti u odnosu na površinu matrice (vodeni prsten)
Both methods can produce excellent pellets. The right choice depends on your polymer, cleanliness,
throughput, and how stable your melt flow is.
- Jednostavan tijek rada: pramenovi se hlade u vodenoj kupelji prije rezanja.
- Jednostavno za održavanje: široko korišten, poznat većini operatera.
- Najbolje pristaje: stabilan tok taline i čišća sirovina.
Pazite: lomljenje pramenova, neravnomjeran tok pramenova i vrijeme neaktivnosti ako pramenovi često pucaju.
- Kontinuirano rezanje: cuts at the die face; often handles output variations
better. - Kompaktni raspored: integrirano hlađenje + transport.
- Najbolje pristaje: PE/PP i folijske linije gdje je stabilan i kontinuiran rad važan.
Watch-outs: requires proper die-face management and consistent process control for best pellet
shape.
If you recycle mixed-quality film or want a smoother continuous operation, die-face pelletizing often
reduces sensitivity to strand handling issues.
If your melt is stable and you want a straightforward configuration, strand pelletizing remains a
reliable choice.
Stroj za peletiranje plastike: vrste, troškovi i kako odabrati
A plastični
stroj za peletiranje converts clean plastic flakes or film into uniform pellets ready for
manufacturing. Your choice of pelletizer type affects pellet shape, throughput stability, labor needs,
and total investment. Here is a practical comparison based on real-world recycling operations.
Peletizator s vodenim prstenom u odnosu na peletizator s nitima: Koji odgovara vašem radu?
| Faktor | Peletizator za niti | Peletizator s vodenim prstenom | Podvodni peletizator |
|---|---|---|---|
| 工作原理 | Talina ekstrudirana u niti → hlađenje vodenom kupelji → rotacijski rezač | Rezanje na čelu matrice → vodeni prsten hladi i prenosi pelete | Rezanje pod vodom na površini matrice → peleti se trenutno stvrdnjavaju |
| Oblik peleta | Cilindričan | Sferni / gotovo sferni | Sferni |
| Najbolje za | Kruti mljeveni materijal (HDPE, PP, ABS) sa stabilnom talinom | PE/PP folija, mekana plastika, kontinuirane linije | Visokoučinkovito miješanje, inženjerske plastike |
| Tipični kapacitet | 100–2000 kg/h | 100–1500 kg/h | 500–5000+ kg/h |
| Raspon cijena (USD) | $10.000–$80.000 | $20.000–$120.000 | $50.000–$300.000+ |
| Potrebe za radnom snagom | Ručno uvlačenje niti pri pokretanju; pratiti prekide | Uglavnom automatizirano; minimalna intervencija operatera | Potpuno automatizirano; potrebna stručna postavka |
| Održavanje | Jednostavna izmjena oštrica; niska održavanje cost |
Upravljanje kliznim površinama; umjereno održavanje | Više održavanja; specijalizirani dijelovi |
peletizator offers the lowest investment. For PE/PP film recycling where continuous operation
matters, a water ring system reduces strand-handling headaches. See our full peletiranje
methods comparison za dublje tehničke detalje.
Sustav za peletiranje rezačem i kompaktorom: Preferirana postavka za reciklažu folije
A cutter compactor pelletizing system combines four functions in one integrated unit: cutting,
compacting, plasticizing, and pelletizing. The high-speed rotating blades inside the compactor chamber
shred and densify film scraps through frictional heat—bringing the material just below its melting
point—then force-feed it directly into the extruder screw. This eliminates the bridging and
feeding instability that plagues conventional film recycling setups.
- LDPE/LLDPE rastezljiva folija i poljoprivredna folija
- PP tkane vrećice i rafija
- Tiskana ili laminirana folija s problemima mirisa/hlapljivosti
- Mješovita postpotrošačka folija s promjenjivom vlagom
- Jednostupanjski sustav: $45.000–$150.000
- Dvostupanjski (s dodatnim otplinjavanjem): $80.000–$250.000
- Raspon kapaciteta: 200–1500 kg/h
- Usporedite opcije: PE/PP
film pelletizing machines
Linija za peletiranje plastike: Što uključuje kompletan sustav
A plastic pelletizing line is not a single machine—it is a coordinated system of modules that
convert raw plastic waste into sellable pellets. The exact configuration depends on your material,
contamination level, and output target. Here is what a typical line includes and what each stage costs.
| Pozornica | Oprema | Funkcija | Tipična cijena (USD) |
|---|---|---|---|
| 1. Smanjenje veličine | Sjeckalica / drobilica | Smanjite plastiku na komadiće veličine 5–12 mm | $3.000–$25.000 |
| 2. Pranje | Frikcijska podloška, float-sink tank |
Uklonite prljavštinu, naljepnice, ljepilo, ulje | $15.000–$200.000 |
| 3. Sušenje | Centrifugalna sušilica, termička sušilica | Smanjite vlažnost ispod praga ekstruzije | $5.000–$30.000 |
| 4. Istiskivanje | Jednostruki vijak ili dvopužni ekstruder |
Rastopiti, miješati, otplinjavati, filtrirati | $10.000–$250.000 |
| 5. Peletiranje | Rezač niti / vodeni prsten / matrica | Izrežite rastaljenu plastiku u jednolične kuglice | $5.000–$80.000 |
| 6. Hlađenje i osiguranje kvalitete | Rashladni transporter, vibracijsko sito, silos | Ohladite, procijedite fine dijelove, spremite za pakiranje | $3.000–$15.000 |
costs $50,000–$150,000. Medium-capacity lines (500–1,500 kg/h) run $150,000–$350,000.
For detailed pricing by capacity tier and material type, see our 2026 plastic
recycling machine price list. Za analizu troškova specifičnih za peletizator, pročitajte what
drives pelletizer prices.
Peleti vs. granule: Koja je razlika?
The terms "pellets" and "granules" are often used interchangeably in plastic recycling, but they refer
to different products with distinct manufacturing processes and market values.
| Karakteristično | Plastične pelete | Plastične granule (regrinding) |
|---|---|---|
| Oblik | Jednolike cilindrične ili sferične (3–5 mm) | Nepravilni, uglati fragmenti |
| Metoda proizvodnje | Ekstruzija → filtracija taline → peletiranje (rezanje niti ili matrice) | Usitnjavanje ili mljevenje bez topljenja |
| Dosljednost | Ujednačena veličina, gustoća i tok taline | Promjenjiva veličina i gustoća nasipnog materijala |
| nizvodno hranjenje | Stabilno, predvidljivo doziranje kod injekcije/ekstruzije | Može se premostiti ili neravnomjerno hraniti |
| Tržišna cijena | Viša - kupci plaćaju premiju za dosljednost | Niže - ograničeno na kupce koji mogu podnijeti varijabilnost |
| Najbolji slučaj upotrebe | Prodaja proizvođačima kojima je potreban materijal spreman za proizvodnju | Interna ponovna upotreba ili miješanje s djevičanskom smolom |
flakes adds $50–$200/ton in processing cost but typically earns $100–$400/ton more than
loose regrind. The benefits
and limitations of recycled pellets uvelike ovise o kvaliteti vaše sirovine i ciljanom tržištu.
Vodič za odlučivanje: kako odabrati sustav peletiranja (prvo na kupca)
If you want fewer surprises after purchase, decide from the material backward—not from the brochure
forward.
Use this checklist to align your line configuration with your feedstock and your pellet sales target.
ADefinirajte svoju ulaznu stvarnost
- Vrsta(e) polimera: PET / HDPE / LDPE / miješano?
- Oblik: kruti mljeveni materijal, pahuljice, film, tiskani otpad, otpad nakon potrošnje?
- Kontaminacija: papir/etikete, pijesak, ulje, vlaga, rizik od metala?
BDefinirajte svoje potrebe za izlazom
- Ciljna tržišta: interna ponovna upotreba u odnosu na prodaju peleta kupcima?
- Kvaliteta: tolerancija mrlja, tolerancija mirisa, stabilnost boje?
- Potrebna ispitivanja: MFI, vlaga, gustoća u nasipu itd.?
CUskladite "obavezne" module
- Film: zbijač/ugušćivač za sprječavanje premošćivanja i stabilizaciju hranjenja.
- Rizik od tiskanog/neugodnog mirisa: otplinjavanje (vakuumski ventil) za uklanjanje hlapljivih tvari.
- Prljava hrana: stronger filtration + practical screen change method to
maintain uptime.
DZaštitite vrijeme rada i ukupne troškove
- Potvrdite materijale mjenjača, vijka/cijev i wear
parts strategy. - Pitajte kako sustav rješava skokove tlaka i strane predmete.
- Procijenite jednostavnost korištenja od strane operatera: pristup, vrijeme čišćenja, logiku upravljanja.
pelletizing control.
If you process PET, prioritize drying discipline, temperature stability, and effective
degassing/filtration.
Zašto kupci biraju Energycle (što dobivate u stvarnom radu)
You don’t buy a pelletizer to “own a machine.” You buy it to run stable production, hit output targets,
and deliver pellets that customers accept.
Energycle focuses on practical engineering that protects your uptime and pellet quality.
- Konfiguracije usklađene s materijalom: we recommend layouts based on your
feedstock (rigid vs. film vs. PET). - Fokus na stabilnost kvalitete: process control + filtration/degassing options
reduce specks, bubbles, and odor risks. - Način razmišljanja o neprekidnom radu: robust core components and practical maintenance design to
reduce unplanned stops. - Jasna tehnička komunikacija: you get a configuration that fits your
constraints, not generic promises.
- Kupnja linije koja ne može pouzdano dovoditi film (premošćivanje i gladovanje).
- Rad bez odgovarajuće filtracije (crne naočale, začepljene matrice, pritužbe kupaca).
- Zanemarivanje kontrole vlage (mjehurići, nestabilno rezanje, rizik od degradacije PET-a).
- Prekomjerno trošenje na značajke koje ne odgovaraju vašim stvarnim potrebama za ulaznim i izlaznim podacima.
Preporučeni sljedeći korak (brz i praktičan)
Send your material type, input form (film/rigid/flake), contamination level, target output
(kg/h), and pellet application.
We’ll suggest a suitable configuration and share options from our pelletizing range.
Započnite ovdje: Energycle Plastic
linije za peletiranje
Često postavljana pitanja o izradi plastičnih peleta
Koju veličinu peleta trebam ciljati?
Most recycled plastic pellets are produced around 3–5 mm. The exact size depends on your downstream
customer’s feeding system and product requirements.
The key is consistency: uniform pellets feed better and produce more stable manufacturing output.
Trebam li uvijek prati?
If your feedstock contains dirt, labels, glue, oils, or sand, washing is one of the most
cost-effective ways to raise pellet value and reduce defects.
Clean input reduces filtration load, odor risk, and die buildup during extrusion.
Zašto se recikliranje folije čini težim od recikliranja krute plastike?
Film is light and “fluffy,” so it bridges and feeds inconsistently. A compactor/densifier (or
integrated cutting-compaction) stabilizes feeding and protects extrusion pressure,
which directly improves pellet size uniformity and output stability.
Kada bih trebao odabrati peletiranje u kalupu (vodeni prsten) umjesto peletiranja u nitima?
If you run PE/PP (especially film) and want continuous operation with less sensitivity to strand
handling, die-face methods can be a strong match.
If your melt is stable and you prefer a straightforward configuration, strand pelletizing remains
reliable and widely used.
Koje informacije trebam pripremiti prije nego što zatražim ponudu?
Prepare: polymer type(s), input form (flakes/film/rigid), contamination level, moisture condition,
target output (kg/h),
and pellet application (internal reuse or external buyers). With that, a supplier can recommend a
configuration that matches your real operating conditions.
Koliko košta stroj za peletiranje plastike?
A single-screw strand pelletizer starts at around $10,000 for small capacities (100-200 kg/h).
Water ring pelletizers range $20,000-$120,000. A complete pelletizing line including shredder,
washer, dryer, and extruder typically costs $50,000-$350,000 depending on capacity and automation
level. See our peletizator
cost analysis za detaljne raščlambe.
Koja je razlika između plastičnih peleta i granula?
Pellets are uniform, cylindrical or spherical particles (3-5 mm) produced through extrusion and
controlled cutting. Granules (regrind) are irregular fragments produced by shredding or grinding
without melting. Pellets command higher market prices because they feed more consistently in
manufacturing equipment and deliver predictable melt behavior.
Kako napraviti HDPE pelete od recikliranih spremnika?
HDPE pelletizing follows the standard 7-step process: sort by color, shred to 8-12 mm flakes, wash
with friction and float-sink separation, dry below 1% moisture, extrude through a single-screw
system with screen filtration, and pelletize using a strand cutter. The main challenge is
controlling color contamination and removing residual odors from post-consumer containers.
Peletizator s vodenim prstenom ili peletizator s nitima - koji odabrati?
Choose a strand pelletizer for rigid plastics (HDPE, PP, ABS) with clean, stable melt flow - it
costs less and is simple to maintain. Choose a water ring pelletizer for PE/PP film lines where
continuous, automated operation matters and you want to avoid strand-break downtime. See the potpuna tablica usporedbe iznad.
Što je a cutter compactor sustav peletiranja?
A cutter compactor pelletizing system combines cutting, compacting, plasticizing, and pelletizing in
one integrated unit. High-speed rotating blades shred and densify film scraps through frictional
heat, then force-feed the material directly into the extruder. This design is specifically built for
LDPE/LLDPE film, PP woven bags, and other soft materials that are difficult to feed through
conventional extruder hoppers.
Zaključak
You can make high-quality pellets from PET, HDPE, and LDPE when you control the process end-to-end: keep
polymers separated,
clean and dry the feedstock, stabilize extrusion with proper degassing and filtration, and choose a
pelletizing method that fits your material.
When you align the system configuration with your real input and output goals, you protect uptime,
reduce defects, and deliver pellets buyers can run confidently.
Istražite opremu i konfiguracije za peletiranje
Plastični peltilizatori — pogledajte mogućnosti
za recikliranje tvrdih plastičnih materijala i filma, s praktičnim konfiguracijama koje naglašavaju stabilnu
proizvodnju i kvalitet granula.
