The barrel is one of the two main working components of a twin-screw granulator, the other being the screw. Only when the barrel and the screw form a friction pair can plastic, additives, and auxiliary materials be fully mixed. During the plastic processing, the inner wall of the extruder barrel, the twin-screw elements, plastic particles, additives, and auxiliary materials are mixed together, causing varying degrees of wear on the inner wall of the barrel and the twin-screw elements due to friction. As a result, the inner lining of the barrel needs to be replaced more frequently, sometimes even once every three months.

Here are the top 5 factors affecting the lifespan of the 75 model twin-screw granulator barrel.

1. Normal wear and tear

2. Corrosion and wear

3. High-intensity wear (heavy wear area)

4. Operating Conditions (Impact of Temperature and Pressure)

5. Water, air, oxygen, and other gaseous components inside the cylinder

To extend the service life of the twin-screw extruder's barrel, pay attention to these points. However, the barrel itself is a consumable item and will need to be replaced after prolonged use. Worn-out barrels can also affect the production efficiency of the twin-screw extruder.