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

The "PRE" series planetary roller extruder combines rolling and extrusion in a configuration where a planetary screw is inter-engaged at the center of a main screw and barrel, which are shaped like helical gears at 45°. The planetary screw revolves and rotates on its axis, enabling the processing of various resins.

This extruder offers multiple applications, suitable for sheeting and filming instead of using Banbury mixers or open mill mixers, as well as high-capacity pelletizing with a capacity up to 2000kg/h.

 

Notably, due to the rolling and extrusion through the inter-engagement space, it can plasticize resin at a low temperature.

Through the inter-meshing action of the toothed planetary roller system, just one single revolution of the main spindle suffices to roll out the plastic melt as many as 1,100 times, ensuring optimal plastification, homogenization, and dispersion.

 

The "PRE" series is a low-temperature forming extruder that produces without any change in properties due to its low-temperature forming and homogenizing capabilities.

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

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

Low-cost formulation: the optimal heat-exchanging effect created by the large contact surfaces of the planetary roller system in conjunction with short residence time of the melt helps reduce formulation costs significantly. Costly stabilizers and lubricants are minimized.

Self-cleaning feature: since all toothed components of the machine constantly inter-mesh, no residual material is left in the machine when changing from one formulation to another. The system allows color changes with less than 5kg of scrap.

 

 Why Choose Lanhang

 

1. Since 1992, with more than 20 years of professional experience

 

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

 

3. International CE, SGS, IAF, CNAS certification

 

4. National high-tech enterprise / products

 

5. Various national patents for rubber and plastic machinery

 

6. ISO9001:2008 management

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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.