Sink-Float Separation Tank for PET Recycling
Achieve over 99% purity in PET flake separation with Rumtoo’s robust and efficient sink-float technology. Separate valuable PET from PP/PE contaminants with unparalleled precision.
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- High Purity Separation Leverages water density (1 g/cm³) to effectively sink PET (density >1.2 g/cm³) while floating lighter contaminants like PP/PE caps, ensuring premium quality output.
- Automated & Efficient Workflow Equipped with rotating drums and screw conveyors to automatically separate, collect, and transport materials, minimizing manual labor and maximizing throughput.
- Durable Construction Built with a Type 304 Stainless Steel interior and robust carbon steel frame, our tanks are designed for longevity and resistance to rust and corrosion in demanding recycling environments.
How It Works
The sink-float separation tank is the cornerstone of modern PET recycling. The process begins by feeding a mixed stream of crushed plastic into the water-filled tank. Due to their higher density, PET flakes sink to the bottom. Simultaneously, lighter materials, such as bottle caps and labels made from PP (Polypropylene) and PE (Polyethylene), float on the water’s surface.
A system of slowly rotating drums skims the surface, guiding the floating contaminants towards a discharge point for collection. At the bottom of the tank, a powerful screw conveyor collects the sunken, high-purity PET flakes and transports them to the next stage of your recycling line. This continuous, automated process guarantees a clean and efficient separation.
Technical Specifications
| Interior Width | 1500mm – 2000mm |
| Total Length | 4 – 6 meters (Customizable) |
| Interior Material | Type 304 Stainless Steel |
| Exterior Frame | Carbon Steel |
| Screw Conveyor Motors | 5.5KW + 3.7KW |
| Rotating Drum Motors | 0.37KW + 2.2KW |
| Warranty | 1-Year Limited Warranty |
Frequently Asked Questions (FAQ)
What is the main advantage of this sink-float tank?
The primary advantage is achieving extremely high purity PET flakes. By perfectly separating materials based on density, you produce a higher-value final product that is free from common contaminants like PP and PE, which is critical for food-grade recycling applications.
What materials can this tank effectively separate?
It is specifically designed for PET bottle recycling. It excels at separating PET flakes from lighter plastics like Polypropylene (PP) and Polyethylene (PE), which are commonly used for bottle caps and labels.
How difficult is the equipment to maintain?
Maintenance is straightforward. The tank’s core components are made from Type 304 stainless steel, which is highly resistant to corrosion. Routine maintenance involves checking the motors and gearboxes, and ensuring the screw conveyor is clear of obstructions. We provide a full maintenance guide and offer tailored service plans.
What processing capacities do you offer?
We offer standard models in 4-meter and 6-meter lengths to suit different throughput requirements. However, we can also provide custom-sized solutions tailored to your facility’s specific needs. Contact our team to discuss your capacity goals.
Enhance Your PET Recycling Process Today
Ready to boost your recycling efficiency and purity? Contact us for the latest pricing, lead times, and customization options.
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