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What are the advantages of twin screw extruders?

Update:11-09-2020
Summary:

Advantages of twin screw extruder: 1. Wear and tear Due […]

Advantages of twin screw extruder:
1. Wear and tear
Due to the convenient opening, the degree of wear of the threaded elements and the inner sleeve of the barrel can be found at any time, so that effective maintenance or replacement can be carried out. It will not be discovered when there is a problem with the extruded product, causing unnecessary waste.
2. Reduce production costs
When manufacturing masterbatch, it is often necessary to change the color. If it is necessary to change the product, open the open processing area within a few minutes. In addition, the mixing process can be analyzed by observing the melt profile on the entire screw. At present, the common twin-screw extruder needs to use a large amount of cleaning material to clean the machine when changing the color, which is time-consuming, energy-consuming, and waste of raw materials. The split twin-screw extruder can solve this problem. When changing the color, it only takes a few minutes to quickly open the barrel for manual cleaning, so that no or less cleaning materials can be used, which saves costs.


3. Improve labor efficiency
During equipment maintenance, the heating and cooling systems of ordinary twin-screw extruders are often removed first, and then the screw is drawn out as a whole. The split twin screw is not needed. Just loosen a few bolts and turn the worm gear box handle to lift the upper part of the barrel to open the entire barrel and then perform maintenance. This not only shortens maintenance time, but also reduces labor intensity.
4. High torque and high speed
At present, the development trend of twin-screw extruders in the world is toward high torque, high speed, and low energy consumption. The effect of high speed is high productivity. The split twin-screw extruder belongs to this category, and its speed can be up to 500 rpm. Therefore, it has unique advantages in processing high viscosity and heat sensitive materials.
In terms of the core technology of high speed and high torque, asymmetric and symmetrical high torque gearboxes are currently only mastered by German and Japanese related manufacturers, and their speed can reach more than 1800 rpm.
5. Wide range of applications
It has a wide range of applications and can be applied to the processing of various materials.
6. High output, high quality
It has other advantages of ordinary twin-screw extruder, and can realize high output, high quality and high efficiency.
The twin-screw extruder is developed on the basis of the single-screw extruder. Due to its good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability, etc., it has been widely used in extruded products. Molding processing.

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