LDPE Pelletizing Line

Top Recycling Plastic Pelletizer Line Manufacturers in China

HuaZhao Machinery is a professional manufacturer of high-end LDPE sheet recycling and pelletizing equipment in China. Backed by strong engineering expertise and continuous technological innovation, we provide efficient, stable, and reliable extrusion pelletizing solutions for a wide range of plastic recycling applications.

  • CE SGS BV ISO9001
  • Excellent pre-sales and after-sales service
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Front side view of underwater strand pelletizing system
HDPE Pelettizing Line

LDPE Pellets Making Machine

Key Features:

  • Very low labor request
  • Stable running
  • Automatic constant temperature control.

The LDPE plastic pelletizing machine adopts internationally advanced recycling technology and is specially engineered according to real recycling production requirements. This HDPE plastic recycling pelletizing line is specially designed for converting washed PE rigid flakes and soft film materials into high-quality recycled plastic pellets efficiently and continuously.

It is widely suitable for recycling various types of HDPE plastic waste, including HDPE milk bottle flakes, detergent bottle flakes, shampoo bottle flakes, plastic drum flakes, plastic bucket flakes, HDPE film scraps, agricultural films, packaging films, stretch films, shopping bags, and other post-consumer or post-industrial PE materials.

Featuring stable extrusion performance, efficient degassing, advanced filtration, and reliable pelletizing technology, the machine ensures uniform pellet quality, low energy consumption, and stable long-term operation for plastic recycling manufacturers.

PE water strand

Plastic Plastic Pelletizing Equipment For Sale

Horizontal die-face water ring pelletizing extrusion line model 180-200

Water Ring Pelletizing Machine
HZ Machine
Guangdong, China
The Water Ring Pelletizing Machine is designed for efficient pelletizing of PE, PP, EVA, TPU, masterbatch, and various modified plastic materials. The system adopts advanced die-face hot cutting techn...
Single Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–800 kW | 500–1300 kg/h
Two Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–1000 kW | 500–1100kg/h
Three Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–1100 kW | 500–1000kg/h
View Details Enquiry Now
Two-stage strand pelletizing line model 140-160 for plastic recycling

Water Strand Pelletizing Machine
HZ Machine
Guangdong, China
The HuaZhao Water Strand Pelletizing Machine is designed for efficient pelletizing of PE, PP, ABS, PS, PET, engineering plastics, filler masterbatch, and various modified polymer materials. In this sy...
Single Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–800 kW | 500–1300 kg/h
Two Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–1000 kW | 500–1100kg/h
Three Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–1100 kW | 500–1000kg/h
View Details Enquiry Now
Single Screw Extruder

Plastic Compounding Machine
HZ Machine
Guangdong, China
The Plastic Compounding Machine is designed for high-efficiency mixing, melting, dispersing, and pelletizing of various plastic materials, including PE, PP, ABS, PVC, EVA, engineering plastics, filler...
Single Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–800 kW | 350–500 kg/h
Two Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–1000 kW | 500–700kg/h
Three Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–1100 kW | 500–800kg/h
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Twin screw water ring pelletizer production line for HDPE recycling

Large Counter Rotating Twin Screw Extrusion Granulator
HZ Machine
Guangdong, China
The HuaZhao Machinery Twin-Screw Extruder Pelletizing Line adopts advanced large-scale P150 / P180 twin-screw extrusion technology for efficient waste plastic recycling and pellet production. The mach...
Single Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–800 kW | 500–1300 kg/h
Two Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–1000 kW | 500–1100kg/h
Three Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–1100 kW | 500–1000kg/h
View Details Enquiry Now
Horizontal die-face water ring pelletizing extrusion line model 140-160

Single and twin-Screw Granulating Extrusion Line
HZ Machine
Guangdong, China
The Plastic Compounding Machine is designed for high-efficiency mixing, melting, dispersing, and pelletizing of various plastic materials, including PE, PP, ABS, PVC, EVA, engineering plastics, filler...
Single Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–800 kW | 350–500 kg/h
Two Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–1000 kW | 500–700kg/h
Three Stage Plastic Pelletizing Line： Ø160–300 mm | L/D 20–32 | 1,000 rpm | 200–1100 kW | 500–800kg/h
View Details Enquiry Now

Main Components of Plastic LDPE Pelletizing Machine

Explore the essential units that work together to deliver efficient, continuous, and reliable plastic recycling and pelletizing performance.

Screw feeder for plastic recycling machine
1. Screw Feeder

The screw feeder is designed to transport plastic materials continuously and evenly into the recycling or pelletizing system. It improves feeding stability, automation efficiency and overall production performance.

Single Screw Extruder
2. Extruder

Continuous melting, mixing and extrusion of plastic materials to achieve stable granulation performance.

Continuous dual-station screen changer for pelletizing machine
3. Dual-station Screen Changer

Continuous dual-station screen changers enable uninterrupted filtration during plastic extrusion and granulation, thereby improving melt cleanliness and production efficiency.

Horizontal water ring pelletizing system
4. Water Ring Pelletizer

The horizontal water ring granulation system is suitable for high-capacity plastic granulation production lines, providing stable particle size and smooth operation.

Vibrating dewatering and cooling unit
5. Water Cooling Tank

This device combines vibration cooling and dehydration functions, which can improve the drying and cooling efficiency of granules after granulation.

Plastic recycling air dryer unit
6. Air Dryer

Air drying equipment is used to remove moisture from washed plastic raw materials before granulation. It improves drying efficiency and helps ensure the consistency of pellet quality in plastic recycling production lines.

Vibrating screen for plastic pellets
7. Vibrating Screen

Vibrating screens filter particles, removing excessively large materials or impurities to ensure uniform particle quality.

Material hopper for recycling machine
8. Material Hopper

The material hopper can temporarily store recycled materials and ensure continuous feeding during plastic recycling and granulation operations.

Electrical Control Cabinet for plastic pelletizing line
9. Electrical Control Cabinet

The centralized electrical control system is designed to achieve stable, safe, and intelligent operation of the entire production line.

Work Process of LDPE Pelletizing Line

Screw Feeder → Extruder → Non-stop hydraulic screen filter changer → (Second stage extruder → Hydraulic screen filter changer → Die head/Water Ring cutting ) → Water cooling → Dryer → Vibrating Screen → Storage Hopper 

Engineering Line Drawing of LDPE Pelletizing Line

Professional industrial CAD engineering drawing for LDPE plastic pelletizing production line layout design.

CAD Drawing of LDPE Pelletizing Line

Specifications of Plastic LDPE Granulating Machine

FeatureSpecification
Screw DesignSingle screw
ConditionBrand New
Plastic ProcessedLDPE
ApplicationPelleting, Granulating, Pellets Making
Warranty1 Year
Key Selling PointsCompetitive Price
Applicable IndustriesManufacturing Plant
Video Outgoing-InspectionProvided
Core ComponentsBearing, Motor, Gear, PLC
Machinery Test ReportProvided
Screw Material38CrMoALA
Screw Diameter (mm)Generally Ø150-300 mm, Customizable
Screw Speed (rpm)150 rpm
Brand NameHuaZhao
Voltage380V 50HZ， Customizable
Dimension (LWH)Customizable based on requirements
Power (kW)90
FunctionRecycling & Pelletizing
Input MaterialLDPE Bottles, Drums, Sheets, Regrind
Pelletizing MethodWater Ring Cutting
InverterABB
MotorSiemens Beide
Mother Extruder L/D28:01:00
Motor Power90 kW
Baby Extruder L/D10:01
Motor Power of Baby Extruder30 kW
Water Tank4000 mm
ModelScrew Diameter (mm)Screw Aspect Ratio (L/D)Main Motor Power (kW)Screen ChangerOutput (kg/h)
HZ160∅16020-3245-55Hydraulic200-300
HZ180∅18020-3275-85Hydraulic500-600
HZ200∅20020-3275-90Hydraulic700-800
CustomUp to ∅30020-32CustomizableHydraulicCustomizable

Welcome to HuaZhao Machinery Factory

Professional Plastic Pelletizing Equipment Manufacturer

Common Questions About Industrial LDPE Pelletizing Machine

Q: Should HDPE/LDPE Flakes Use Single-Stage or Double-Stage Pelletizing?

A:

For clean and well-washed HDPE/LDPE rigid flakes, a single-stage single screw pelletizing line with water ring pelletizing is usually sufficient because the material has high bulk density, stable feeding performance, and good melt flow characteristics.

Single-stage systems offer:

  • Lower energy consumption
  • Simpler operation
  • Lower maintenance cost
  • Higher production efficiency

However, when processing flakes with higher moisture, printing ink, residual contamination, or unstable material quality, a double-stage pelletizing system is recommended.

The second extrusion stage improves:

  • Degassing performance
  • Melt homogenization
  • Filtration stability
  • Final pellet quality

Therefore:

  • Clean rigid flakes → Single-stage pelletizing
  • Contaminated or demanding applications → Double-stage pelletizing

Q: Why Choose Water Ring Pelletizing for HDPE/LDPE Flakes?

A:

HDPE/LDPE rigid flakes usually have high bulk density and excellent flowability after crushing and washing, which makes feeding more stable and continuous during extrusion.

Compared with strand pelletizing, the water ring pelletizing system offers several advantages for rigid HDPE/LDPE flakes:

  • More uniform pellet size
  • Higher pelletizing efficiency
  • Better automation
  • Compact production layout
  • Reduced strand breakage problems
  • Easier operation and maintenance

The water ring cutting system can produce smooth and consistent pellets with stable quality, making it ideal for recycled HDPE/LDPE applications such as injection molding and blow molding.

In addition, the production line can be equipped with a screw feeder and dosing feeder to ensure uniform and controllable material feeding, improving overall production stability and energy efficiency.

Q: Why Use a Single Screw Extruder for HDPE/LDPE Flakes?

A:

HDPE and LDPE flakes have stable melting characteristics and good flow performance after proper washing and crushing, making them highly suitable for single screw extrusion pelletizing systems.

Compared with twin screw extruders, single screw extruders provide:

  • Lower energy consumption
  • Higher output efficiency
  • Simpler operation
  • Lower maintenance cost
  • Better suitability for recycled HDPE/LDPE flakes
  • More stable continuous production

For rigid HDPE/LDPE recycling, single screw pelletizing lines are widely used because they can efficiently plasticize and pelletize the material while maintaining stable pressure and consistent pellet quality.

Combined with a hydraulic screen changer and water ring pelletizing system, the entire line can achieve stable operation, high productivity, and excellent pellet appearance.

Q: What is the Working Process of plastic Pellet Making Machine​?

A:

Screw Feeder → Extruder → Non-stop hydraulic screen filter changer → (Second stage extruder → Hydraulic screen filter changer → Die head/Strand cutting ) → Water cooling → Dryer → Storage hopper 

Q: What is Suitable Raw Materials for plastic pelletizing machine

A: 

Suitable for PP, PE, PET, ABS, HDPE, PS, film scraps, rigid plastics, and washed flakes.

Q: What is Plastic Pelletizer Price

A:

The plastic pelletizer price is About USD 10,000–50,000 depending on material, capacity and configuration.

Q: What Information Do We Need Before Recommending a Plastic Recycling Machine?

A:

1. What Material Will Be Recycled?

Please let us know the material type, such as:

PP raffia
PE film
HDPE bottles
PET flakes
ABS
Rigid plastics

Different materials require different recycling processes and machine configurations.

2. Is the Material Clean or Dirty?

The contamination level affects:

Washing system design
Drying requirements
Filtration configuration
Final pellet quality

Photos or videos of the raw material are very helpful.

3. What Capacity Do You Need?

Please provide your expected output, for example:

100 kg/h
500 kg/h
1000 kg/h or even more

Capacity directly affects machine size and power consumption.

4. What Pellet Quality Do You Require?

Please tell us:

End application of the pellets
Pellet size requirements
Moisture requirements
Filtration expectations

Higher pellet quality may require additional degassing or filtration systems.

5. What Is Your Factory Power Standard?

Please provide:

Voltage
Frequency
Phase

Example:

380V / 50Hz / 3 Phase
6. Do You Need a Complete Recycling Line?

We can provide:

Crushing
Washing
Drying
Pelletizing
Conveying
Storage systems

Complete turnkey recycling solutions are available.

7. Installation Country

Different countries may require:

CE certification
Special voltage standards
Local safety requirements
Need Technical Advice?

Our engineering team can recommend the most suitable recycling solution based on your materials and production goals.

Contact HuaZhao Machinery for a customized quotation.

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