How to choose screen changer that suits your needs

The extruder screen changer is an auxiliary machine of the extrusion production line equipment, and the price is also uneven. How to choose a screen changer that suits your needs?

1. Consider the characteristics of your own raw materials

Because each raw material has different melting points, melting index, corrosiveness and fluidity, the requirements for filter screen changer are naturally different.

2. Consider whether the raw materials you use are new or old

If it is old material, what is the impurity ratio of the old material? What filter area does the equipment manufacturer recommend?

3. Consider your own products

Different products have different requirements for the continuity of production. The requirements for strand granulation are that the strands cannot be broken, and the casting film requires small fluctuations in the screen change pressure, etc., which should be determined according to the actual situation of their own production.

4. consider whether the extruder you use is single-screw or twin-screw and the model of the extruder. Usually, the diameter of the filter screen is not less than the diameter of the screw.

5. Consider the output of the extruder in kilograms per hour

We can't match the big ones, which is a waste of money; when the small ones are installed, the small horse-drawn carts will not only reduce the life of the main engine, but also increase the frequency of network changes, so it is necessary to stop in moderation.

6. Know how much Mpa the maximum pressure of the material flow is

If this point is ignored, the configured granules screen changer is prone to material leakage or the phenomenon that it cannot be pushed or pulled.

To sum up, the configuration of the hydraulic screen changer is for the user, do not blindly pursue money saving, nor pursue its function, the suitable one is good.