PE PP Water Ring Pelletizing Line|PE PP granulation line,
The PE PP Water Ring Pelletizing Line, developed and manufactured by Guangdong Blesson Precision Machinery Co., Ltd., relies on profound plastic extrusion and recycling technologies, with high efficiency and stable performance as its core advantages. The PE PP Pelletizing Recycling System provides global customers with customized one-stop plastic pelletizing solutions.
Blesson's water ring pelletizing unit: PP PE water ring pelletizing unit is applicable to LDPE, HDPE, LLDPE, PP films (whole pieces or crushed materials) with a moisture content of ≤5% and impurities of ≤1%. Core configuration: Single-screw main extruder + Hydraulic automatic non-stop screen changer +Water ring pelletizing → high capacity of 600–650 kg/h.
Water Ring Pelletizing Line stands as the preferred solution for plastic pelletizing plants when compared with air-cooled and underwater pelletizing systems — pellets are cooled in water immediately after being discharged from the die head, a process that delivers higher efficiency and better pellet morphology. This is exactly the core advantage of our Water Ring Pelletizing Line. The Water Ring Hot Cut Plastic Recycling Pelletizer is ideal equipment for LDPE (Low-Density Polyethylene)/LLDPE (Linear Low-Density Polyethylene) film recycling, PE (Polyethylene)/PP (Polypropylene) pellet regeneration, plastic modification and compounding, etc.
Advantages of Blesson's Water Ring Pelletizing Line:
The Water Ring Pelletizing Machine adopts CE-certified components, supports customization, and features precise engineering design.
One-stop solutions for the Water Ring Pelletizing Line: including process consultation, formula guidance, equipment installation, technical training and after-sales service.
The water ring hot cut pelletizing line, a sophisticated result of Blesson’s meticulous development with innovative R&D as its core driving force since its establishment, relies on industry-leading technical configurations. It has not only redefined the benchmark for plastic recycling efficiency, but also, by virtue of customized services for recycled plastic equipment and in-depth adaptation to processing scenarios, the water ring pelletizing machine has become the preferred equipment for numerous enterprises to enhance product competitiveness and achieve environmental protection and efficiency improvement. In the fierce market competition, the water ring hot-cut pelletizing line continues to occupy a leading position and serves as an ideal partner in the industry.
What is plastic pelletizing?
Plastic pelletizing is the process of converting waste PE/PP films, scraps, or rigid plastics into reusable pellets. Water ring pelletizing machine can be widely applied in the production of blown films, injection-molded products, pipes, packaging, and other goods. With efficient and stable pelletizing equipment, enterprises can not only significantly reduce raw material costs and improve recycling efficiency, but also comply with environmental regulations and achieve closed-loop utilization of factory waste. It is an ideal choice to promote sustainable production and enhance profit margins.
Product List of Water Ring Hot Cut Plastic Pelletizing Lines
Single-screw Main Extruder
Dehydrator
Water Tank
Single-screw Secondary Extruder
Vibrating screen
Hydraulic Station
Belt Conveyer
500KG Storage Hopper
Electrical Cabinet
Die Face Hot-Cutting Unit
Vacuum unit
Technical Highlights of Water Ring Hot Cut Pelletizing Lines
1. Two-stage Extrusion System
**Single-screw Main Extruder**
Dual-Venting Design:High-efficiency devolatilization resolves bubble issues in high-volatility materials (e.g., recycled plastics), enhancing product density by 5-8%. Wear-Resistant Screw: 38CrMoAlA nitrided steel + wear-resistant alloy coating on flight edges (rare in China). Nitriding depth of 0.4-0.7mm extends service life by 50% compared to standard nitrided screws. Intelligent Temperature Control: 9-zone independent heating + zonal cooling (fan/water combination). Precise ±1°C temperature regulation reduces energy consumption by 15%.
Water ring pelletizer’s solution: Processes high-viscosity materials like LDPE/HDPE/PP with throughput up to 600-800kg/h and waste rate <0.3%.
Single-screw Main Extruder Wear-resistant screw
**Secondary Extruder**
Pressure-Boosting Design:Optimized short L/D ratio (12:1) for melt pressure homogenization. Paired with dual-column water-cooled screen changer (3000cm² filtration area), pressure fluctuation <2MPa during screen changes.
Modular Die Head: 90 independent temperature-controlled discharge ports enable rapid product specification changes (30 minutes vs. industry average 2 hours).
Water ring pelletizer’s advantage: Seamless integration with the main extruder ensures high-precision pelletizing (particle size deviation ±0.2mm).
Single-screw Secondary Extruder Pelletizing extrusion die
2. Die Face Hot-Cutting Unit
Three-Station Cantilever Cutterhead: Driven by 2.2kW variable-frequency motor with stepless speed regulation (0-3000rpm). Supports on-line blade replacement (downtime <5 minutes).
304 Stainless Steel Water Ring: Corrosion-resistant design triples service life compared to carbon steel.
Closed-Loop Water Cooling: Maintains water temperature ≤15°C, reducing water consumption by 40% (only 2m³/h required).
Water ring pelletizer’s solution: Delivers pellet roundness >95%, ideal for high-end applications like transparent and medical-grade materials.
3. Vacuum System – Energy-Saving Auxiliary
Dual-Stage Anti-Backflow Design: Water-ring vacuum pump (5.5kW) + condensate tank achieves -0.095MPa vacuum level, removing >90% of volatiles. Water ring pelletizer’s solution: Minimizes material degradation and enhances melt strength, especially for LLDPE.
Vacuum unitDehydrator
4. Vertical Dewatering Machine
Direct-Drive Centrifugal Technology: 5.5kW motor-driven system reduces moisture content to <0.5% (vs. industry average 1-2%), eliminating the need for additional drying.
Storage Hopper
Electrical Cabinet Conveyor Belt
Water Ring Pelletizer Line Solves Your Production Challenges
Moisture content of horizontal dewatering machine is usually > 1%
High Maintenance Cost
Screw/barrel hardness ≥ 940HV (industry average 800HV)
Domestic equipment generally without screw wear – resistant spraying
Core Advantages of Water Ring Hot Cut Pelletizing Line
Water Ring Pelletizing Machine’s Cost Advantages:
Energy consumption: 470kW installed power + intelligent frequency conversion system (using first-tier brand Inovance inverter), with electricity consumption per ton 18% lower than that of competitors.
Water saving: Closed cooling water circulation (only 2m³/h), saving 40% more water than traditional production lines.
Water Ring Pelletizing Machine’s Technological Innovation:
Twin-screw extrusion + zonal temperature control: Adaptable to a wide range of raw materials (from recycled materials to high-end PP), reducing formula switching time by 50%.
Wear-resistant technology: The service life of key components (screws, barrels) is extended by 50%, reducing annual maintenance costs by 30%.
Water Ring Pelletizing Machine’s Intelligence: Support for 12-inch touchscreen remote monitoring, improving efficient automated services.
Flowchart of Water Ring Pelletizing Line
Raw Material Conveying Screw Feeder (Conveyor Belt) → Efficient feeding, suitable for raw materials such as LDPE, HDPE, LLDPE, PP → Automatically feeds into the main extruder
Two-stage Extrusion Stage Main single-screw extruder (φ160mm, 30:1 L/D ratio, double venting) → Melting and plasticizing of raw materials ↓ Auxiliary single-screw extruder (φ160mm, 12:1 L/D ratio, single venting) → Melt pressurization and homogenization
Vacuum Venting System Vacuum device → Simultaneously extracts volatiles from main/auxiliary extruders to ensure melt purity
Dual-channel Screen Changer System Main extruder hydraulic gate-type double screen → On-line filter switching (350mm screen), fast non-stop screen changing to improve production efficiency ↓ Auxiliary extruder dual-column water-cooled screen changer → Dual-channel uninterrupted filtration (filter area 3000cm²)
Die Face Hot Cutting and Cooling Die face hot-cutting unit (3-station cantilever cutterhead) → Water ring cutting + cooling water circulation (2m³/h) → Uniform pellet formation
Dewatering and Screening Vertical dewatering machine → Direct-drive centrifugal dewatering (moisture content < 0.5%) ↓ Vibrating screen → Two-stage screening (φ2.0mm powder removal + φ8.0mm screening), using 304 stainless steel sieve plates to remove fine powder and foreign matter, ensuring pellet purity
Finished Product Storage Pneumatic conveying → 500KG storage bin (compatible with 500-900kg bulk bags) → Pneumatic butterfly valve controlled discharging → Automatic collection into storage bin
Widely Applied Fields of Water Ring Pelletizer:
Recycling and Regeneration of Films Recycling of LDPE, LLDPE, and HDPE films (e.g., agricultural films, packaging films, shrink films, etc.)
Recycling of Woven Bags, Ton Bags, and Non-woven Fabrics PP woven bags, PE/PP ton bags, and non-woven fabric scraps
Recycling of Foam Materials Pelletizing and recycling of EPE, EPS, and XPS foamed materials
Regeneration of Blow Molding and Injection Molding Wastes Pelletizing of plastic preforms, bottle caps, and container scraps
Recycling of Cable Materials Crushing and pelletizing of cable sheaths (PVC/PE/TPU types)
Recycling of Domestic Waste Plastics Pelletizing of PE bags, express packaging, and food packaging waste films
Recycling of Factory Scraps Pelletizing of plastic edge trims and sprue runners generated in industrial production
Pre-pelletizing of Color Masterbatches and Functional Masterbatches Black masterbatches, white masterbatches, filled masterbatches, flame-retardant masterbatches, etc.
Pelletizing of High-transparency Regenerated Particles Regenerated particles used in manufacturing high-demand products such as transparent packaging bags and transparent films
WARRANTY AND CERTIFICATE OF CONFORMITY
Guangdong Blesson Precision Machinery Co., Ltd. provides a one-year warranty service. During the use of the product, if you have any questions about the product, you can directly contact us to obtain professional after-sales service. Guangdong Blesson Precision Machinery Co., Ltd. provides a product certificate of conformity for each sold product to ensure that every product has been inspected by professional technicians and commissioning personnel.
BLESSON-High Technology Expertise Certificate
We have successively passed the international GB/T19001-2016/IS09001:2015 Quality Management System Certification, CE certification, etc. And we have been awarded the honorary titles of “China Famous Brand”,”China Independent Innovation Brand” and “National High-tech Enterprise”. Many of our products have obtained various patent certificates.
Adhering to the business philosophy of “Integrity and Innovation, Quality First and Customer Centered”, we provide high-quality extrusion machines and outstanding service for our valuable customers.
Guangdong Blesson Precision Machinery Co., Ltd. focuses on plastic extrusion molding and automated equipment. Integrating research and development, manufacturing, sales, and service, it spares no effort in creating high-quality plastic machinery.
Blesson has been deeply involved in the plastic processing machinery industry for decades. With profound technical accumulation, it has unique expertise in the R & D and manufacturing of extrusion casting film equipment. By leveraging advanced technology and exquisite craftsmanship, it produces high – performance, precise and stable mechanical products. The brand collaborates with customers in many parts of the world and is highly favored by them.
GUANGDONG BLESSON PRECISION MACHINERY CO., LTD.
Address: NO.10, Guangyao Road, Xiaolan, Zhongshan, Guangdong, China
