The article explains how barrel configuration—not just screw design—is essential for optimizing twin-screw extrusion. Different barrel types (feeding, side-feeding, venting, closed) and modular layout improve melting, mixing, devolatilization, and temperature control. Proper barrel design enhances product quality, reduces energy use, and increases process stability across various compounding applications.

According to whether the axis lines of the twin screws are parallel or not, they can be divided into two types of extruders: those with parallel axis lines and those with intersecting axis lines. The one with parallel axis lines is a parallel twin screw extruder, and the one with intersecting axis lines is a conical twin screw extruder.

The conical twin-screw feeder solves the complicated feeding procedure in the prior art plastic granulation process, and realizes the conical twin-screw feeding integrated unit for stable and continuous feeding to the extruder.

Is a parallel twin-screw extruder better, or a conical twin-screw extruder? This is a question that users often ask when purchasing a twin-screw extruder.

Conical twin screw extruder for pvc compound

conical twin screw extruder for pvc compound and pelletizing

What is the difference between a conical twin-screw, a parallel counter-rotating twin-screw, and a parallel co-rotating twin-screw extruder?Classification of twin-screw extruderAccording to the direction of rotation of the twin-screw, the extruder can be divided into two extruders: the same directio

Counter-rotating twin-screw extruders are another type of twin-screw extruders, which include two kinds of parallel and conical extruders.