Film Densifier & Squeezer
For washed PP and PE film that still carries too much moisture and too little bulk density for stable pelletizer feeding.
Drying & Densifying Equipment
Plastic Drying & Densifying Equipment
Choose the right drying route after washing: centrifugal dewatering for free water, film squeezing for moisture plus bulk density, and thermal drying for tighter final moisture before extrusion.
- 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
Turnkey Installation & Training
Drying Stage Equipment Families
Use this hub to choose the right module family before you look at final model size. Each route solves a different process problem.
Explore Film Densifier & Squeezer
Film Centrifugal Dryer
For fast mechanical bulk-water removal after washing before thermal drying, squeezing, or another conditioning stage.
Thermal Dryer
For lower and tighter residual moisture after mechanical dewatering when extrusion or high-spec discharge still needs drier material.
Which Drying Route Fits Your Material?
Start with the material condition leaving the washer. Choose the first module for the actual bottleneck, then add another stage only when the measured discharge or downstream process requires it.
| Material & Inlet Condition | Main Constraint | Start With | Add Only When Needed | Downstream Check |
|---|---|---|---|---|
| Washed PE/PP film, raffia or woven material that remains wet and bulky | Moisture plus low bulk density and unstable feeding | Film squeezer-densifier | Centrifugal pre-dewatering for high free-water load, or thermal finishing for a tighter measured target | Confirm bulk density, pelletizer feed stability and actual outlet moisture |
| Washed film, flakes or regrind with visible free water | Fast bulk-water removal | Centrifugal dryer | Squeezer if film remains fluffy; thermal dryer if residual moisture is still above the next-stage limit | Measure moisture after mechanical dewatering before sizing the next module |
| PET flakes or rigid regrind after mechanical dewatering | Lower and more stable residual moisture | Thermal finishing sized from the measured inlet condition | For PET, separate crystallization or dehumidifying may still be required by the extrusion route | Use the actual downstream specification, not one universal moisture promise |
| Mixed feedstock, variable washer discharge or retrofit project | Changing water load, material form or layout limits | Material test and inlet/outlet measurement | Combined mechanical and thermal route only after the test confirms the need | Confirm kg/h, utilities, ducting, cyclone position and transfer height |
This matrix selects the process route, not a final model. Motor power, heating duty and equipment size should be quoted only after the real inlet condition and required outlet are confirmed.
How Drying-Stage Selection Should Actually Work
The drying route comes down to three separate decisions: free-water removal, final moisture control, and film feed conditioning. Take them in that order and the equipment list falls out by itself.
1
Define the feed after washing
Film fluff, PET flakes, and rigid regrind do not leave the washing line in the same condition. Material form and inlet water load determine which drying stage should come first.
2
Separate free water from residual moisture
Mechanical dewatering removes bulk free water quickly. Thermal drying is usually sized later for the remaining residual moisture target.
3
Check whether density is also part of the problem
For washed film, the line may need a densifier-squeezer because the real bottleneck is not moisture alone. Feeding behavior and bulk density also matter.
4
Select the route around the downstream process
Pelletizing, compactor-extrusion, storage transfer, and high-spec flake discharge each require a different drying and conditioning route.
What This Section Helps You Decide
Drying equipment is not interchangeable. Each module produces a different material condition, and the right way to compare them is machine by machine against the discharge state your next stage needs.
Machine View: three different modules, three different jobs
A centrifugal dryer removes free water mechanically. A film squeezer reduces moisture while raising bulk density. A thermal dryer handles the final residual moisture window after dewatering.
- Clarifies the difference between dewatering, densifying, and final drying
- Helps prevent overquoting thermal power for a problem that starts with free water
- Makes module selection easier before model sizing begins
Process View: the real target is downstream stability
The buyer is usually not purchasing a dryer in isolation. The real target is a discharge condition that feeds pelletizing or extrusion with fewer moisture-related disruptions.
- Separates free-water removal from final moisture control
- Shows when film density matters as much as dryness
- Frames the drying stage around the actual extrusion route
Typical Routes Covered by This Hub
These are the main drying-stage paths buyers compare when moving from washing to extrusion or pelletizing.
Washed PE and PP Film
Mechanical dewatering plus squeezing or thermal finishing depending on moisture and density needs.
PET Flake Lines
Centrifugal dewatering followed by final thermal drying where stricter residual moisture targets are required.
Rigid Regrind Conditioning
Bulk water removal before lower-moisture discharge to extrusion or packaging transfer.
Line Retrofit Projects
Add one drying stage or redesign the handoff between washing and pelletizing without rebuilding the whole line.
Energy-Sensitive Upgrades
Move more of the drying load into mechanical dewatering before adding thermal power.
Strict Extrusion Feeding Windows
Configure the drying route around stable discharge, not only around a nominal machine capacity.
Unit Family Comparison
These references are route-level planning guidance, not final model quotations.
| Unit Family | Primary Job | Typical Fit | Key Planning Note |
|---|---|---|---|
| Film Centrifugal Dryer | Mechanical bulk-water removal | Washed film, flakes, and regrind | Usually the first drying step, not the final moisture target |
| Film Densifier & Squeezer | Moisture reduction plus bulk-density increase | PE and PP film lines | Best when pelletizer feeding is unstable because material stays wet and fluffy |
| Thermal Dryer | Final residual-moisture control | Film, PET flakes, and rigid regrind | Must be matched to the real inlet condition after dewatering |
| Combined Drying Route | Stage-by-stage moisture management | Projects with tighter extrusion targets | The final route depends on material type, line layout, and downstream sensitivity |
The correct module sequence depends on material form, inlet moisture after washing, and the quality window required by the next process stage.
Drying Route Checklist Before RFQ
These inputs should be prepared before you compare a centrifugal dryer, film squeezer, or thermal dryer.
Material Form
State whether the stream is washed film, PET flakes, rigid regrind, woven material, or a mixed washed fraction.
Current Inlet Condition
Share residual water level after washing, discharge form, and whether free water, fluffiness, or strict residual moisture is the main issue.
Downstream Route
Clarify whether the material feeds pelletizing, compactor-extrusion, direct extrusion, storage transfer, or high-spec dry-flake discharge.
Utilities and Layout
Send target kg/h, available power, heating preference, footprint, and any retrofit constraints around ducts, cyclones, or transfer height.
Equipment Selection Comparison
Use this comparison to decide whether a standard machine quote is enough or whether the project needs material testing, layout review, and downstream process matching.
| Decision Point | Generic Equipment Quote | Rumtoo Engineering Route |
|---|---|---|
| Material condition | Assumes a clean and stable feed | Checks moisture, density, contamination, and real feed form |
| Capacity planning | Starts from nominal kg/h | Matches throughput to line duty, discharge size, and downstream process |
| Integration risk | Treats the machine as standalone | Reviews conveyors, controls, safety, access, and retrofit space |
| Output quality | Focuses on the model name | Connects output size, purity, moisture, and pelletizing or washing goals |
Frequently Asked Questions
How do I know whether I need a centrifugal dryer, a squeezer, or a thermal dryer?
Start with the real problem after washing. If the issue is free water, centrifugal drying usually comes first. If film stays wet and fluffy, a squeezer may be more appropriate. If residual moisture is still too high for extrusion, thermal drying is usually the final stage.
Can one drying module solve every washed plastic stream?
Usually no. Film, PET flakes, and rigid regrind behave differently, so the route should be chosen around material form, moisture target, and downstream process sensitivity.
Does a film squeezer replace thermal drying in every line?
Not always. It often reduces or changes the thermal load, but projects with stricter final moisture requirements may still need thermal post-drying.
In what order should the drying stages run?
Mechanical dewatering normally precedes thermal finishing because free water should be removed mechanically where practical. The exact sequence still depends on material form, washer discharge, measured inlet moisture and the requirement of the next process. Film may go directly to a squeezer-densifier, while flakes may use centrifugal dewatering before any thermal stage.
What should I send before asking for a recommendation?
Send the material type, inlet condition after washing, target kg/h, downstream process, final moisture goal, available utilities, and any layout limits. That lets Rumtoo recommend the correct drying route before model sizing begins.
Need the Right Drying Route Before Extrusion?
Share your washed material, inlet moisture, target throughput, and downstream process. Rumtoo will tell you whether you need centrifugal drying, squeezing, thermal drying, or a combined route.
Expert response within 24 hours. No obligation quote.