PE Film Plastic Dewatering Machine

Product Overview

The PE film plastic dewatering machine is a custom-designed screw-extrusion type plastic dehydration equipment, specifically engineered for the plastic recycling and processing stage. It removes free water from washed plastic materials through purely physical extrusion, reducing the moisture content to below 5%. This efficiently connects the plastic washing line with subsequent pelletizing processes, enabling continuous, streamlined production. The equipment features wear-resistant stainless steel screens and a specialized screw structure, achieving a dehydration rate of over 75% without any heating energy consumption. With low operating and maintenance costs, it serves as a core supporting device for plastic recycling and processing enterprises seeking to boost productivity and cut expenses.

Technical Principle

This equipment operates on the principle of screw-extrusion dehydration. After being conveyed into the dewatering chamber, the wet plastic material undergoes continuous pushing and compression by variable-diameter screw flights, progressively reducing its volume. The free water inside is squeezed out through stainless steel screens on the chamber walls and discharged, achieving entirely physical dehydration throughout the process. As the material moves from the feed end to the discharge end, pressure gradually increases, intensifying the dehydration effect. The resulting low-moisture dry material can be directly fed into the next pelletizing step without additional preprocessing.

Performance Parameters

1. Processing Capacity: 500–2000 kg/h
2. Post-Dewatering Moisture Content: ≤5%
3. Overall Dehydration Rate: Over 75%
4. Screen Material: Wear-Resistant Stainless Steel
5. Production Mode: Supports Continuous Operation
6. Screw and Barrel Materials: 38CrMoAlA alloy and bimetallic materials, nitrogen-treated
7. Motor Brands: Siemens, ABB, Weg, or leading domestic brands
8. Bearing Brands: NSK, SKF, INA, FAG, or top domestic brands
9. Inverter Brands: ABB, FUJI, Delta, Siemens
10. Delivery Time: 70–80 working days
11. Warranty Period: 13 months from the date of the bill of lading
12. Trademark/Brand: PURUI
13. Country of Origin: NANTONG

Core Advantages

1. Purely Physical Dehydration with Low Energy Consumption: Utilizing physical extrusion dehydration without heating, this equipment incurs no extra energy costs during operation, keeping running expenses extremely low. Compared to traditional hot-air drying, it saves over 70% on electricity, with annual energy cost savings exceeding RMB 80,000 per production line.
2. High-Efficiency Dehydration with Excellent Compliance: It can reduce moisture content from over 20% directly to below 5%, achieving an overall dehydration rate of over 75%. The stable dehydration performance meets the stringent requirements of downstream pelletizing processes.
3. Long Service Life Thanks to Wear-Resistant Design: The screw and barrel are made of wear-resistant materials such as 38CrMoAlA and undergo nitrogen treatment, while the screens are crafted from durable stainless steel. This results in extended equipment lifespan, reduced maintenance costs, and fewer shutdowns for repairs.
4. Smooth Integration into Continuous Production: Directly connected to the output of the washing line, it enables seamless, continuous production without manual material transfer, significantly boosting efficiency and adapting well to large-scale plastic recycling operations.
5. Easy Operation with Low Failure Rate: With a simple structure and straightforward operating procedures, daily maintenance is easy, and the equipment exhibits a low failure rate, ensuring stable production continuity.

Core Value of the Product

1. Dramatic Reduction in Production Energy Costs: Saving over 70% on electricity compared to hot-air drying, with annual energy cost savings exceeding RMB 80,000 per line, effectively cutting enterprise production expenses.
2. Enhanced Finished Product Quality: By maintaining moisture content consistently below 5%, it prevents issues like bubbling and broken pellets in downstream pelletizing, reducing defective product rates by 80% and lowering screen-changing frequency by 60%, thus improving pellet quality.
3. Space-Saving Design: Occupying only one-third of the footprint of conventional drying lines, it significantly conserves factory floor space, making it suitable for various production site layouts.
4. Strengthened Production Continuity: Connecting seamlessly with washing lines to enable continuous operation, minimizing manual intervention and boosting overall productivity, helping enterprises expand their production capacity.

Target Customer Groups

Plastic washing plants, recycled pellet manufacturers, plastic recycling and processing companies, renewable resource industrial parks, and solid waste treatment enterprises—especially those operating large-scale plastic recycling lines with high demands for dehydration efficiency and cost control.

Application Scenarios

This equipment is primarily used for pre-dehydration treatment after washing various types of recycled plastics, including dehydrating PE/PP films, squeezing out excess water from woven bags, and handling other similar scenarios involving washed recycled plastics. It effectively links the washing and pelletizing processes, providing downstream production with low-moisture materials that meet required standards.

Solutions to Industry Pain Points

1. Solving Quality Issues Caused by Direct Pelletization of Wet Materials: Addressing problems like bubbling, broken pellets, and high defect rates when wet materials with high moisture content are directly pelletized, this equipment reduces moisture levels to below 5%, greatly improving pellet quality and cutting defect rates by 80%.
2. Replacing Energy-Intensive Drying Processes: Tackling the drawbacks of hot-air drying—high energy consumption, high costs, and low dehydration efficiency—this equipment employs purely physical extrusion dehydration without heating, saving over 70% on electricity and reducing annual energy costs by more than RMB 80,000, while delivering superior dehydration performance.
3. Avoiding the Drawbacks of Natural Air-Drying: Countering the disadvantages of natural air-drying—large land use, low efficiency, and weather dependency—this equipment occupies only one-third of the space required by conventional drying lines, enabling continuous production unaffected by weather conditions and ensuring stable, controllable productivity.
4. Ensuring Stability in Subsequent Production Stages: To address instability and poor finished-product quality caused by incomplete dehydration, this equipment maintains a stable dehydration rate above 75% and precisely controls moisture levels, providing a reliable material foundation for downstream pelletizing and enhancing overall product quality stability.

Common Questions FAQ

Q1: What is the processing capacity range of this PE film plastic dewatering machine?
A: The equipment’s processing capacity ranges from 500 to 2000 kg/h, customizable according to customer production needs to suit different-sized production lines.
Q2: What standard can the post-dewatering moisture content reach?
A: After passing through this equipment, the moisture content can be stably maintained below 5%, with a dehydration rate exceeding 75%, fully meeting the requirements of downstream pelletizing processes.
Q3: Which brands are used for the equipment’s core components?
A: Motors can be selected from Siemens, ABB, Weg, or leading domestic brands; bearings from NSK, SKF, INA, FAG, or top domestic brands; inverters from ABB, FUJI, Delta, or Siemens, ensuring stable and reliable operation.
Q4: What are the delivery time and warranty period?
A: The delivery time is 70–80 working days, and the warranty lasts 13 months from the date of the bill of lading, providing customers with ample after-sales support.
Q5: How does this equipment compare to hot-air drying?
A: Compared to hot-air drying, this equipment uses purely physical extrusion dehydration without heating, saving over 70% on electricity and reducing annual energy costs by more than RMB 80,000. Additionally, it occupies only one-third of the space required by conventional drying lines, delivers higher dehydration efficiency, and significantly lowers the rate of defective pellets.