PP/PE Floating Separation Tank
Rumtoo’s floating separation tank uses water density plus a “W” bottom design to separate floating PP/PE from sinking plastics and contaminants while simultaneously washing the material.
- Dual-zone water treatment
- Floating PP/PE vs sinking contaminants
- Engineered for high-purity recycling lines
Efficient PP/PE Separation in a Single Tank
Mixed plastic streams enter the floating separation tank, where denser plastics (PET, PVC, contaminants) sink while low-density PP and PE float. The “W” bottom splits the tank into two zones: the first captures heavy contaminants and allows frequent water cleaning; the second keeps cleaner water to finish washing floating flakes.
- Leverages the natural density difference between PP/PE and other plastics.
- Dual-zone design saves water and improves cleanliness.
- Pairs with washing lines to deliver high-purity PP/PE flakes.
Inclined paddles keep floating PP/PE moving forward while sinks remove heavy contaminants.
Key Benefits
Improve product purity, save water, and simplify downstream washing steps.
Efficient Separation
Floating flakes travel to the discharge while heavier plastics and grit sink, ensuring clean PP/PE output.
Water Conservation
The “W” bottom isolates a dirty zone from a clean zone, reducing water changes and improving wash quality.
Simple Operation
Carbon-steel frame with stainless steel interior ensures durability, easy maintenance, and reliable paddles.
How the Floating Separation Tank Works
Density-based sorting combines with gentle agitation for continuous separation.
Mixed flakes enter the first half of the tank, where paddles submerge and loosen contamination.
Heavy plastics and contaminants sink to the bottom; PP/PE flakes float to the surface.
Floating flakes move to the clean water zone and exit via the overflow gate, while sinks are removed via bottom drains.
Applications
Ideal for any recycling line processing mixed PP, PE, and other plastics.
PP/PE Flake Washing Lines
Remove PET, PVC, and heavy contaminants before friction washers or dryers.
Municipal Sorting Plants
Separate mixed plastic streams into floating and sinking fractions.
Film Recycling Systems
Clean agricultural films and segregate soil or grit via the sinking channel.
Technical Specifications
Standard sizes can be tailored to your throughput and floor space.
| Interior width | Total length | Interior material | Frame material | Paddle motors |
|---|---|---|---|---|
| 1000–1800 mm | 4–7 m | SUS304 stainless steel | Carbon steel | 1.5 kW × 2 (frequency control) |
Need special dimensions, automatic sludge removal, or integrated water filtration? Rumtoo engineers will adapt the tank to your line.
Operation & Maintenance Tips
Maximize separation efficiency with straightforward procedures.
Before Start-up
- Check water level and ensure both halves are clean.
- Inspect paddles and frequency drives.
- Clear bottom drains of accumulated sinks.
During Operation
- Maintain a steady feed rate to prevent turbulence.
- Monitor overflow clarity; adjust water change frequency.
- Remove heavy contamination from the first half regularly.
Routine Care
- Flush the tank and clean filters on scheduled shutdowns.
- Inspect welds, bearings, and paddle arms for wear.
- Check control panel and sensors for proper operation.
Frequently Asked Questions
What density separation range does the tank support?
Any plastic or contaminant denser than water (1 g/cm³) sinks, while PP/PE (0.90–0.96 g/cm³) floats. For materials with similar densities, Rumtoo can suggest additives or complementary separation steps.
How often must water be changed?
The first half may require more frequent water exchange due to heavy contamination. The second half stays cleaner longer thanks to the “W” bottom design.
Can the tank integrate into existing washing lines?
Yes. Rumtoo provides layout drawings, platforms, and piping connections to retrofit into current plants.
Is the tank suitable for film or rigid flakes?
Both. The gentle paddles keep films moving without damage, and rigid flakes are easily separated by density.
Configure Your Floating Separation Tank
Tell us about your throughput, flake sizes, and contaminant mix. Rumtoo engineers will recommend tank size, paddle speed, and water management options.
- Support for global recycling plants
- Integrates with Rumtoo washing, friction, and drying modules
- Worldwide shipping with spare paddle and motor kits