Pre220/250 Two Stage PVC Pelletizing Extruder (Planetary Extruder with Single Screw Extruder)

The "PRE" series planetary roller extruder is designed with a unique configuration where the planetary screw is inter-engaged at the center of a main screw and barrel shaped like a helical gear at 45°. This setup allows for efficient rolling and extrusion processes.

This extruder offers multiple applications, such as sheeting and filming, replacing traditional Banbury mixers or open mills. It is also ideal for high-capacity pelletizing, capable of reaching up to 2000kg/h.

 

Due to its inter-meshing design, the extruder can plasticize resin at low temperatures, which helps maintain material properties during processing.

The inter-meshing action of the toothed planetary roller system ensures that the plastic melt is rolled out up to 1,100 times per single revolution of the main spindle, guaranteeing optimal plastification, homogenization, and dispersion.

 

The "PRE" series is a low-temperature forming extruder that produces materials without altering their properties due to its low-temperature forming and homogenizing capabilities.

Combined rolling and extruding action: The inter-meshing action of the toothed planetary roller system ensures that just one single revolution of the main spindle suffices to roll out the plastic melt as many as 1,100 times, ensuring optimum plastification, homogenization, and dispersion.

Compared to other extruder designs, this system increases the contact surface of the melt by up to five times.

Low-cost formulation: The large contact surfaces of the planetary roller system combined with short residence time of the melt help reduce formulation costs significantly. Expensive stabilizers and lubricants are minimized.

Self-cleaning feature: All toothed components of the machine constantly inter-mesh, so no residual material is left in the machine when changing from one formulation to another. The system results in less than 5kg of scrap when switching colors.

 

 Why Choose Lanhang

 

1. Since 1992, with over 20 years of professional experience.

 

2. Overseas service centers available (Europe, Japan, Dubai, etc.).

 

3. International CE, SGS, IAF, CNAS certifications.

 

4. National high-tech enterprise / products.

 

5. Various national patents for inventions in rubber and plastic machinery.

 

6. ISO9001:2008 management.

 

Product 1:

Product 2:

 Double stage extruder:

The first compounding extruder runs at a high speed for good mixing and high output capacity. The second extruder must be a larger diameter single screw one that can run at lower screw speed. The lower screw can avoid over-heating by internal cooling system and strong heat exchange ability. The functional separation allows operator to more flexibly control the expectable material mixing process and temperature.