Home > News / Media > Content

What's The Screw Compression Ratio?

We often see the compression ratio on the screw, so what's the screw compression ratio? Do you have to pay attention to it?

The compression ratio of the screw is due to the smaller volume of the screw groove in the screw compression section, which enables the material to get the representation of the size of the compaction.

The effect of the screw design on the compression ratio is to compress the material, discharge the gas and establish the necessary pressure to ensure that the material has enough density at the end of the screw, so the compression ratio of the screw has a very important influence on the plastic extrusion. The compression ratio of screw must be considered when selecting extruder.

from: Parallel Twin Screw And Barrel