China Plastic Pulverizing & Pelletizing Line Factory
Build a recycling line for PVC, PE, PP, and post industrial plastic scrap. Turn your pipe scrap, profile scrap, sheet scrap, rigid regrind, film scrap, or PVC powder into reusable powder or pellets, matched to your material condition, moisture, contamination level, output target, and final reuse application.
- Feedstock based line configuration
- Pulverizing and pelletizing options
- Sample trial run available
- Dust, filtration, and degassing considered
Powder And Pellet
PVC, PE, PP Scrap
Everything You Need To Plan Your Pulverizing And Pelletizing Line
Jump straight to the section that answers your question, from matching your scrap type to picking a process, checking quality control, and sending us your material details for a quote.
Scrap Types
PVC, PE, PP scrap sources
Line Categories
Pulverizing and pelletizing
Process Selection
Powder or pellet output
Line Configurations
Single, staged, custom setups
Common Problems
Sourcing mistakes to avoid
Scrap Differences
How feedstock changes the line
Quality Control
Checks before every shipment
Process Boundary
What we cover and do not
Factory Capability
What we build in house
Project Process
Selection to installation
Samples And Trial Runs
Your material tested first
Quotation Checklist
What to send for a quote
FAQ
MOQ, lead time, voltage
Get Configuration
Send your scrap details
What Plastic Scrap Do You Need To Process?
Start with the material in your workshop. The right recycling route depends on plastic type, scrap form, current size, moisture, contamination, and whether you want reusable powder, recycled pellets, or small batch test granules.
PVC Scrap
Rigid PVC rework from pipe, profile, sheet, flooring, or extrusion production. Your material can be evaluated for pulverizing into reusable powder or PVC pelletizing, depending on formula, filler ratio, target mesh, and final reuse.
Typical Route
Size reduction if needed to pulverizing or PVC pelletizing.
Confirm Before Configuration
Rigid or soft PVC, current scrap size, filler ratio, target mesh, target pellet use, and reuse method.
PE / PP Rigid
PE or PP crates, drums, pipe scrap, sheet scrap, injection rejects, or rigid flakes that need to become reusable granules. Review feeding stability, melt filtration, degassing, and pellet size before choosing the line.
Typical Route
Feeding to extrusion to degassing to filtration to pelletizing.
Confirm Before Configuration
PE or PP grade, scrap size, moisture, contamination level, output target, and final reuse.
Film / Soft Scrap
Film, bags, woven bags, edge trim, or soft production scrap. Feeding, compaction, moisture control, degassing, and filtration are the key points before selecting the extruder and pelletizing method.
Typical Route
Compaction or force feeding to extrusion to degassing to filtration to pelletizing.
Confirm Before Configuration
Film thickness, bulk density, moisture, printing, contamination, output target, and pellet reuse.
Pulverizing Material
Pre crushed PVC, PE, PP, or similar plastic granules that need fine powder. Target mesh, temperature rise, cooling method, screen selection, and dust collection decide the pulverizing line design.
Typical Route
Metered feeding to pulverizer to cooling to screening to dust collection to powder packing.
Confirm Before Configuration
Material type, feed size, target mesh, required kg/h, heat sensitivity, and powder reuse.
In House Scrap
Pipe, profile, sheet, film, or molding plants that want to reuse clean post industrial scrap inside production. The process is selected by scrap type, reuse ratio, workshop layout, dust control, and final product requirement.
Typical Route
Production scrap to size reduction if needed to pulverizing or pelletizing to reuse in production.
Confirm Before Configuration
Scrap source, daily scrap volume, reuse ratio, available space, dust and noise limits, and current production process.
Pilot / Test
Formulation testing, small batch compounding, color matching, additive testing, or recycling trials before industrial production. Pilot granulation focuses on stable small batches, easy cleaning, repeatable settings, and sample collection.
Typical Route
Small batch feeding to pilot extrusion to pelletizing to cooling to sample review.
Confirm Before Configuration
Material type, batch size, formula changes, test purpose, cleaning frequency, and required process data.
Send Your Material, We Suggest The Route
Send photos or videos of your scrap, current size, moisture, contamination level, target output, and final reuse. We tell you whether your project should start with size reduction, pulverizing, pelletizing, or pilot testing.
Please Note
Heavily contaminated post consumer waste may need sorting, washing, and drying before pulverizing or pelletizing. This page focuses on pulverizing, pelletizing, and clean post industrial scrap recovery.
Choose The Right Line Category
Different plastic scrap needs different recycling routes. Pick a line category by your material type, scrap form, output target, and final reuse. If the material condition is uncertain, start with scrap photos, videos, or sample testing before we confirm the line.
Every line is configured around your material, scrap form, output target, and voltage. Send those details and we confirm the right setup before quotation.
How To Choose The Right Recycling Process
Do not start with a machine model. Start with your material, scrap form, current size, moisture, contamination, output target, and final reuse. The same plastic can need a different route when it is film, rigid regrind, powder, PVC compound, or clean in house scrap.
| Your Scrap Condition | Main Concern | Recommended Direction | Confirm First |
|---|---|---|---|
| Large pipe, profile, sheet, or lump scrap | Too large for stable feeding | Size reduction before pulverizing or pelletizing | Current size, wall thickness, hardness, and feeding method |
| Clean PVC pipe, profile, or sheet scrap | Powder reuse, heat control, and dust | Pulverizing or PVC pelletizing | Rigid or soft PVC, formula, filler ratio, target mesh, and final reuse |
| PVC compound or PVC regrind | Yellowing, black spots, degradation, and pellet sticking | PVC pelletizing line | Stabilizer system, filler content, feeding form, temperature window, and pellet use |
| PE / PP rigid regrind | Black spots, filtration, pellet size, and output stability | Plastic pelletizing line | PE or PP grade, scrap size, moisture, contamination, and reuse application |
| PE / PP film or soft scrap | Low bulk density, unstable feeding, and moisture | Compaction or force feeding with pelletizing | Film thickness, printing, moisture, contamination, bulk density, and output target |
| Pre crushed granules for powder | Mesh stability, temperature rise, and dust | Plastic pulverizing line | Feed size, target mesh, required kg/h, cooling method, and powder use |
| Clean in house production scrap | Reuse ratio, workshop layout, and dust control | In house pulverizing or pelletizing route | Scrap source, daily volume, available space, reuse ratio, and current production process |
| Small batch test material | Formula changes, cleaning, and repeatability | Pilot granulation line | Batch size, test purpose, formula change frequency, and required process data |
| Dirty or mixed post consumer waste | Sorting, washing, drying, and material separation | Pre treatment review before recycling | Contamination type, moisture, mixed plastic ratio, and washing requirement |
Answer These Before The Line Is Selected
A reliable line plan answers a short list of questions first. If your material condition is uncertain, send scrap photos, videos, current size, moisture, contamination, and target output. We select the line after the material route is clear.
Line Planning Checklist
- 1 Should your material become powder or pellets?
- 2 Is size reduction needed before stable feeding?
- 3 Does it need drying, venting, or vacuum degassing?
- 4 What filtration level does the final use need?
- 5 What powder mesh or pellet size do you need?
- 6 Where is the recycled material reused?
- 7 Need dust collection, sealed conveying, or noise control?
- 8 Continuous production or small batch testing?
Typical Line Configurations
A recycling line is not a fixed machine package. Your configuration depends on material type, scrap form, current size, moisture, contamination, output target, powder mesh, pellet size, and final reuse. Here is how each main line comes together.
Plastic Pelletizing Line
Best for PE / PP rigid regrind, selected industrial scrap, clean flakes, crushed material, or production waste that needs to come back as reusable granules.
Typical Flow
Scrap feeding to size reduction if needed to conveying to compactor or force feeder if needed to extruder to vacuum degassing to screen changer to die head to pelletizing to cooling to dewatering to pellet storage.
PVC Pelletizing Line
Best for PVC compound, PVC regrind, soft PVC, rigid PVC, and PVC production scrap that needs stable granules without yellowing or degradation.
Typical Flow
PVC feeding to suitable extrusion system to temperature controlled plasticizing to degassing if needed to screen changer to die face, hot cut, or strand pelletizing to cooling to pellet collection.
Plastic Pulverizing Line
Best for pre crushed PVC, PE, PP, or similar plastic granules that need controlled powder for reuse, mixing, molding, or further processing.
Typical Flow
Pre crushed granules to metered feeding to pulverizer or mill to cooling to vibrating screen or classifier to cyclone separation to dust collection to powder storage or packing.
In House Scrap Recycling
Best for pipe, profile, sheet, film, extrusion, or molding plants that want to reuse clean post industrial scrap inside production instead of throwing away margin.
Typical Flow
Production scrap to cutting or size reduction if needed to pulverizing or pelletizing to powder or pellet storage to reuse in extrusion, molding, or compounding.
Pilot Granulation Line
Best for formulation testing, material trials, small batch compounding, color matching, additive testing, and pilot recycling projects before you scale up.
Typical Flow
Small batch feeding to lab or pilot extruder to venting or filtration if needed to strand or micro pelletizing to cooling to sample collection to process review.
Check Your Scrap Condition First
Large pipe scrap, profile scrap, sheet scrap, lumps, or rigid rejects may need size reduction before pulverizing or pelletizing. This part is configured around your scrap size, hardness, wall thickness, feeding method, and project.
Heavily contaminated material may need sorting, washing, and drying before it enters pulverizing or pelletizing. We confirm the line configuration after checking your actual scrap condition.
Problems To Catch Before You Buy
Most recycling headaches trace back to one thing: the line was picked before the material was understood. Here are the ten problems buyers run into most, and what we need from you to design around each one.
Unstable Feeding
If your material bridges in the hopper, feeds unevenly, or keeps overloading the extruder, output drops and the line stops more than it runs. Low bulk density, uneven scrap size, film, powder backflow, or oversized rigid scrap usually sit behind it, and the fix is matching the feeding system to your material form.
What We Need From You
Scrap form, current size, bulk density, hardness, feeding height, output target, and whether compaction, force feeding, or metered feeding fits.
Bubbles In Pellets
Bubbles, hollow centers, rough surface, or strand breakage after cutting almost always come back to moisture and volatiles the line could not get out. Weak venting, unstable melt temperature, or a degassing setup that does not match your material makes it worse. Drying and the right venting design clear it up.
What We Need From You
Moisture level, drying condition, material source, printing or additives, venting requirement, vacuum degassing need, and final pellet use.
Black Spots In Pellets
Black dots, burnt particles, and dark specks tell you either the material is degrading from heat, or contamination is getting through. Dirty scrap, mixed material, metal or sand, long residence time, or weak filtration are the usual suspects. The answer is better filtration plus a screw and temperature setup that does not cook the melt.
What We Need From You
Contamination level, material cleanliness, filtration accuracy, screen changer type, screw design, temperature setting, and cleaning procedure.
Frequent Screen Blocking
If melt pressure climbs fast, output falls, and you are changing screens far too often, the filtration is fighting your contamination level and losing. High contamination, fine dust, mixed plastics, or degraded material overwhelm a screen that is too small. A larger or continuous screen changer keeps the line running.
What We Need From You
Scrap cleanliness, metal or sand content, dust level, required filtration accuracy, output target, and whether a continuous screen changer is needed.
Poor Degassing
A strong smell, bubbles, or unstable melt flow means volatiles are staying in the melt when they should be pulled out. Moisture, printing ink, additives, or mixed material need enough venting length and a strong vacuum, and sometimes a double stage extruder, to clear. Skip this and the pellets underperform in your next step.
What We Need From You
Material source, moisture, odor, printing, additives, melt behavior, venting requirement, and single or double stage need.
PVC Yellowing Or Degradation
When PVC turns yellow, dark, brittle, or sticky, heat and residence time are the enemy. Overheating, the wrong screw design, unstable feeding, or a filler and stabilizer mismatch push the material past its window. PVC needs a line built around thermal protection and stable plasticizing from the start, not patched later.
What We Need From You
Rigid or soft PVC, formula, filler content, stabilizer system, feeding form, temperature window, output target, and cutting method.
Unstable Powder Mesh
Powder that comes out too coarse, too fine, or uneven is hard to reuse and misses your target mesh. Wrong feed size, unstable feeding, worn discs, poor cooling, or the wrong screen are behind it, along with mesh and output targets that do not match the material. Getting the pulverizer setup right fixes it.
What We Need From You
Material type, feed size, target mesh, expected kg/h, cooling method, screen selection, disc condition, and powder reuse method.
Excessive Dust
Powder escaping into the workshop means lost material and constant cleaning, and it usually comes from open conveying, weak sealing, or undersized dust collection. Fine powder and high speed milling make it worse. Sealed conveying, proper cyclone separation, and the right filter bags keep the dust in the line, not in the air.
What We Need From You
Target mesh, powder volume, workshop space, dust limit, conveying method, cyclone design, filter bag requirement, and packing method.
Uneven Pellet Size
Pellets that come out uneven, too long, too short, or sticky are hard to feed into your next process. The cutting method, extrusion pressure, cooling, water temperature, or a worn cutter are usually the cause. Matching the pelletizing and cooling method to your material keeps the size consistent batch after batch.
What We Need From You
Material type, melt flow, pelletizing method, cooling method, cutter type, target pellet size, output target, and downstream feeding need.
Material Cannot Be Reused
The worst case: the powder or pellets look fine, but they fail in reuse with poor surface, weak strength, color change, or bubbles. That points to the wrong recycling route, weak filtration, moisture, or a mismatch with the final application. This is why we start from where the material ends up, and often test a sample first.
What We Need From You
Final reuse application, powder or pellet target, reuse ratio, quality requirement, filtration level, moisture control, mesh and pellet size, and sample testing need.
Pick The Line By Material, Not By Model
Do not choose a recycling line on machine model or motor power alone. Send material photos, videos, current size, moisture, contamination, target output, and final reuse, and we confirm the line around your actual scrap.
If The Material Is Dirty
Dirty, mixed, or post consumer waste may need sorting, washing, and drying before pulverizing or pelletizing. We confirm the setup after checking the real scrap condition.
Different Scrap Needs Different Routes
Not all plastic scrap should enter the same line. PVC scrap, PE / PP rigid regrind, film, sheet trim, powder material, and mixed production waste behave differently in feeding, heating, filtration, cooling, dust, and reuse. Find your material below, then pick pulverizing, pelletizing, or pre treatment.
| Scrap Material | Common Risk | Better Route | Check First |
|---|---|---|---|
| PVC pipe, profile, or sheet scrap | Heat buildup, yellowing, dust, unstable mesh, or poor surface after reuse | Pulverizing for powder, or PVC pelletizing for granules | Rigid or soft PVC, filler ratio, stabilizer system, current size, target mesh, and final reuse |
| PVC compound or PVC regrind | Degradation, black spots, pellet sticking, color change, or unstable output | PVC pelletizing with careful temperature control | Formula, filler content, feeding form, temperature range, cutting method, and pellet application |
| PE / PP rigid regrind | Black spots, screen blocking, unstable pellet size, or poor filtration | Pelletizing with proper feeding, filtration, and degassing | PE or PP grade, scrap size, moisture, contamination level, melt flow, and final use |
| PE / PP film or soft scrap | Low bulk density, bridging, moisture, printing ink, unstable feeding, or bubbles | Compaction or force feeding with pelletizing | Film thickness, bulk density, moisture, printing, contamination, and target output |
| Sheet, board, or edge trim scrap | Long strips, uneven size, feeding interruption, or material bridging | Cutting or size reduction before pulverizing or pelletizing | Thickness, width, material type, collection method, and reuse plan |
| Clean in house production scrap | Wrong reuse route, workshop dust, noise, unstable reuse ratio, or poor integration | In house pulverizing or pelletizing route | Scrap source, daily volume, available space, reuse ratio, dust limit, and current line |
| Plastic granules for powder | Coarse powder, unstable mesh, high temperature, dust leakage, or low output | Pulverizing line with cooling, screening, and dust collection | Material type, feed size, target mesh, required kg/h, heat sensitivity, and powder use |
| Mixed post industrial scrap | Material incompatibility, unstable melt, color variation, weak product, or screen blocking | Sorting and project based evaluation before recycling | Material mix, plastic ratio, color, contamination, final product need, and separation method |
| Dirty post consumer waste | Sand, oil, labels, moisture, odor, mixed plastics, and heavy contamination | Sorting, washing, and drying before pulverizing or pelletizing | Contamination type, moisture, washing condition, drying level, and material purity |
| R&D or test materials | Small batch instability, cleaning difficulty, formula carryover, or unreliable results | Pilot granulation line | Batch size, formula change frequency, cleaning requirement, temperature range, and test purpose |
The Form Of Your Scrap Decides The Route
The question is not only what plastic you have. It is what form it is in, how clean it is, how much moisture it carries, and whether the final material should come out as powder or pellets.
Clean PVC pipe or profile scrap. Powder reuse is often the practical route when the material goes back into a PVC formulation.
PE / PP rigid scrap. Pelletizing is the clearer route when the material has to feed extrusion, injection, molding, or compounding.
Film scrap. Feeding and moisture control get checked before we even talk output.
Dirty or mixed material. Pre treatment has to be reviewed before any line is selected.
Send material photos, short videos, current size, moisture, contamination, target output, and final reuse. The line plan is far more reliable when the material difference is clear from the start.
Powder Or Pellet
Decided By Material Form
Quality Control From Scrap To Reuse
Quality is not a single test at the end. We check it through the whole run, from material condition and feeding to temperature, degassing, filtration, powder mesh, pellet shape, and the final sample you sign off on.
Feedstock Check
We confirm material type, size, moisture, and contamination before the line is selected.
Feeding Stability
We check the scrap feeds smoothly, with no bridging, overload, or output swing.
Temperature Control
Processing temperature is held steady to cut yellowing, burning, sticking, and degradation.
Degassing Check
Moisture and volatiles are pulled out to cut bubbles, odor, and unstable pellets.
Filtration Check
Filtration is matched to your scrap cleanliness to cut black spots and screen blocking.
Powder Mesh Check
Powder fineness, particle spread, temperature rise, and dust collection all get checked.
Pellet Shape Check
We check pellet size, shape, surface, moisture, and cutting stability across the run.
Final Sample Review
You review the final powder or pellets before we confirm reuse, packing, or shipment.
Not Every Scrap Needs The Same Process
You may not need a full recycling line. Sometimes you only need one step before your material can be reused. Start with what you have in the workshop right now, then match it to the route below.
01
You have large pipe, profile, sheet, or lump scrap
Start With Size Reduction
Large scrap is hard to feed straight into a pulverizer or pelletizing extruder. Cutting or crushing brings it down to a size the next step can actually handle.
Size reduction to pulverizing or pelletizing
You have pre crushed PVC, PE, or PP regrind
Pulverize If You Want Powder
Pulverizing is the route when your target is controlled plastic powder, especially PVC pipe, profile, or sheet scrap that goes back into a formula.
Regrind to pulverizing to screening to powder collection
02
03
You have PE, PP, or PVC scrap that must become granules
Pelletize For Reusable Granules
Pelletizing is right when your recycled material needs to feed extrusion, injection, molding, compounding, or later production as clean granules.
Feeding to melting to degassing to filtration to pelletizing
You have PVC compound, PVC regrind, or soft PVC
Use A PVC Specific Route
PVC cannot be run like normal PE or PP. Temperature control, screw design, feeding stability, and cutting method all decide color, black spots, sticking, and degradation.
PVC feeding to controlled plasticizing to filtration to cutting to cooling
04
05
You have film, bags, woven bags, or soft scrap
Sort Out Feeding First
Soft scrap usually has low bulk density. It bridges, wraps, feeds unevenly, or carries moisture, so the feeding method gets checked before we talk output.
Compaction or force feeding to extrusion to degassing to pelletizing
You only need small test batches
Run A Pilot Granulation Line
Pilot granulation is for material testing, formula trials, color matching, additive testing, or small batch sample production before you scale up to full output.
Small batch feeding to pilot extrusion to pelletizing to sample review
06
Choose The Process, Then The Machine
Send your scrap photos, videos, current size, moisture, contamination, and final reuse. The process should be chosen after the material is clear, not by machine model alone.
- Scrap too large Make it smaller first
- You need powder Choose pulverizing
- You need granules Choose pelletizing
- You are testing a formula Choose pilot granulation
- Dirty, wet, or mixed Sort, wash, and dry first
Inside The Factory On Your Project
See how your project moves through the factory, from material review and line assembly to trial running, powder and pellet sample checks, export packing, and commissioning support. These photos let you check the equipment, process route, and sample results before the line ships.
Every Line Is Voltage And Standard Configured
Your line is built to your local voltage, frequency, and safety standard before it ships. Send your market, scrap material, moisture, and target output when you inquire, and we quote the correct configuration, spare parts, and export documents for your setup.
How Your Recycling Line Project Works
A reliable project starts with your scrap, not with a machine model. Share your material details first, then we confirm the process route, line configuration, and trial run plan step by step.
Send Your Scrap Details
Send photos or videos of your material with plastic type, scrap form, current size, moisture, contamination, target output, and final reuse. Share your workshop layout, voltage, and available space too if you have them.
Material Route Review
We check whether your scrap suits size reduction, pulverizing, pelletizing, or pilot granulation. For dirty, wet, or mixed material, sorting, washing, or drying gets reviewed before the main recycling process.
Line Configuration
The line is configured around your material condition and final use. Modules can include feeding, conveying, size reduction, pulverizing, extrusion, degassing, filtration, pelletizing, cooling, screening, dust collection, and packing.
Technical Proposal
You get a proposal with the suggested process route, equipment list, layout reference, power requirement, capacity reference, optional modules, and key configuration points. Capacity is confirmed against your material, mesh, filtration, and final product.
Manufacturing And Assembly
After confirmation, the equipment is manufactured and assembled to the agreed configuration. You can check production photos, machine details, main components, control cabinet, and line layout before shipment.
Trial Run And Sample Check
A trial run can be arranged to your project conditions. It checks feeding stability, temperature control, degassing, filtration, powder mesh, pellet size, dust collection, and the final sample appearance before you approve.
Packing And Shipment
The line is packed for export and prepared with basic documents like packing details, spare parts list, operation guidance, and wiring information where it applies. Photos or videos of packing and loading can be provided for checking.
Installation And Start Up
Installation guidance, commissioning support, and operator training can be arranged to your project. The goal is to help your team start the line with the right process settings, maintenance points, and material handling method.
Samples And Trial Runs Before Shipment
You check your material, the trial running process, and the final powder or pellet samples before the line ever leaves the factory. Here is what gets reviewed at each stage.
01
Scrap Sample Review
We check your scrap by material type, size, moisture, contamination, and feeding condition before anything runs.
02
Pulverizing Trial
For powder projects, we check mesh size, powder fineness, temperature rise, screening, and dust collection on your material.
03
Pelletizing Trial
For pellet projects, we check feeding stability, degassing, filtration, cutting, pellet shape, and surface quality.
04
PVC Material Check
For PVC projects, we watch color change, thermal stability, sticking, black spots, and final pellet appearance closely.
05
Final Sample Confirmation
You review the powder or pellets by appearance, size, moisture, flowability, and final reuse direction before sign off.
06
Trial Run Records
We share photos or videos so you can check machine operation, sample result, packing, and shipment preparation.
Get A More Accurate Line Quotation
You do not need a full technical file to start. Answer the key points on the right and we help check the right route for your material, then come back with a quotation.
Not sure on a few of them? Send what you have. Scrap photos or a short video often tell us more than a spec sheet.
PVC, PE, PP, ABS, PS, or another plastic. Tell us the base resin so we can match temperature and screw setup.
Pipe scrap, profile scrap, sheet scrap, film, rigid regrind, powder, granules, lumps, or mixed production waste. The form decides the feeding method.
Send the approximate size, thickness, or a clear photo with something for reference. This tells us if size reduction is needed first.
Let us know if it carries moisture, dust, oil, labels, sand, metal, mixed plastics, or printing. Contamination changes filtration and pre treatment.
Powder, pellets, or small batch test granules. This sets the whole line direction from the start.
Share your target kg/h or daily processing volume. Capacity drives the extruder, pulverizer, and cooling size.
For pipe, profile, sheet, film, injection, compounding, resale, or internal production. The final use sets the quality target.
Scrap photos or short videos let us check feeding, size reduction, pulverizing, pelletizing, and pre treatment needs far faster.
Recycling Line Questions, Answered
The questions buyers ask most before they choose a pulverizing or pelletizing line. If yours is not here, send it over and we answer it directly.
Choose pulverizing when you need plastic powder for reuse, mixing, or formulation. Choose pelletizing when the material has to become granules for extrusion, injection, molding, compounding, or resale. For PVC pipe and profile scrap, powder reuse is often worth checking first. For PE / PP rigid regrind or film, pelletizing is usually more practical.
You may need it if your scrap is too large for stable feeding. Pipe scrap, profile scrap, sheet scrap, lumps, thick edge trim, and rigid rejects are usually cut or crushed before entering a pulverizer or pelletizing line. If your material is already suitable regrind, flakes, or granules, this step may not be needed.
Not always. PVC, PE, and PP behave differently in heating, feeding, filtering, and cutting. PVC needs careful temperature control to reduce yellowing, sticking, and degradation. PE and PP lines focus more on feeding, moisture, filtration, and pelletizing method. If you want one line for different materials, we check the material range, cleaning requirement, and final use first.
Bubbles usually trace back to moisture, volatile content, printing ink, insufficient drying, weak venting, or unstable melt temperature. For film scrap and moist regrind, feeding, drying, compaction, venting, and vacuum degassing all get reviewed before we select the line.
Black spots come from dirty scrap, mixed materials, metal or sand, thermal degradation, poor filtration, or material sitting too long inside the barrel or die head. To cut the risk, we check scrap cleanliness, filtration level, screen changer type, temperature control, and cleaning method before configuration.
Frequent blocking usually means the scrap carries too much contamination, fine dust, degraded material, mixed plastic, or metal particles. It also happens when the filter area is too small for the output. We select the screen changer by scrap cleanliness, melt pressure, filtration target, and final pellet quality.
It depends on material type, melt behavior, output, pellet shape, and cooling need. Strand pelletizing suits cleaner rigid materials. Water ring pelletizing is common for many PE / PP applications. Hot cut or die face cutting may fit selected PVC or compound materials. The choice should follow your material behavior, not just the machine price.
Mesh is affected by material type, feed size, mill gap, disc condition, cooling, screen selection, and feeding stability. Higher mesh usually needs better cooling and may lower output. Before choosing a pulverizer, confirm your material, target mesh, required kg/h, and how the powder will be reused.
Usually not. Dirty, wet, or mixed post consumer waste may need sorting, washing, drying, or separation first. If sand, oil, labels, metal, mixed plastics, or high moisture enter the line directly, you get bubbles, black spots, odor, screen blocking, or unstable output.
Start from the final use. Powder for PVC formulation, pellets for extrusion, pellets for injection, and material for compounding all have different requirements. Check powder mesh, pellet size, moisture, filtration, color, melt stability, and contamination. When the behavior is uncertain, sample testing or a trial run is the safest way to confirm the route.
Start Your Recycling Line Project With Maggie
Whether you need a line matched to your scrap, an upgrade on an old one, or just help picking a direction, send what you have. Maggie replies personally within 24 hours with real configuration details and a clear next step.
Hi, I'm Maggie.
Your Recycling Line Sales Contact
Every message here reaches me directly. Tell me about your scrap and output needs and I come back with a line configuration and a real quote, not a brochure.
Your material, scrap form, output target, or a few scrap photos are enough to start. We supply pulverizing, pelletizing, and recycling lines to factories and importers across 60+ countries.
Maggie
Sales, Zhangjiagang Qinxiang Machinery Co., Ltd.
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