Screw & Barrel Design Improvement for Rubber, Silicone Extrusion

Rubber or silicone is a thermosetting polymer material. Generally, in addition to the temperature adjustment ability, the design of the extrusion screw and barrel should also be aware of whether the feeding can be smooth or not.

In general, the barrel for rubber and silicone extrusion, in order to make the strip rubber feed smoothly, an assistant feeding wheel is designed at the feeding port to force feeding.

The design of the assistant feeding wheel is very important. Poor design is easy to cause glue leakage, and the feeding wheel is easy to get stuck due to the glue running into the bearing and cannot run.
On the other hand, the problem of bubbles that often occur in rubber and silicone extrusion

We have a lot of experience in solving problems for customers for the problems of rubber and silicone extrusion, leakage of the feeding wheel, poor feeding, and bubbles on the surface.
We change the design of the screw and barrel, and can smoothly feed and extrude the strip rubber material without assistant feeding wheel.