Twin Screw Extruders for Powder Coatings is developed on the basis of single screw extruder. Due to its good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and other characteristics, it has been widely used in extrusion products. forming process.

From the perspective of motion principle, the same-direction meshing and opposite-direction meshing and non-meshing types in Twin Screw Extruders for Powder Coatings are different.
1. Co-rotating intermeshing twin-screw extruder
There are two types of extruders of this type, low-speed and high-speed, the former mainly used for profile extrusion and the latter for specialty polymer processing operations.
(1) Close meshing extruder. Low-speed extruders have a closely intermeshing screw geometry in which the flight profile of one screw closely mates with the flight profile of the other screw, a conjugate screw profile.
(2) Self-cleaning extruder. High-speed co-rotating extruders have closely matched flight profiles. This kind of screw can be designed to have a relatively small screw gap, so that the screw has a closed self-cleaning effect. This kind of Twin Screw Extruders for Powder Coatings is called a tight self-cleaning co-rotating twin-screw extruder.
2. Counter-meshing twin-screw extruder
The gap between the two screw grooves of the closely intermeshing counter-rotating twin-screw extruder is very small (much smaller than that in the co-rotating twin-screw extruder), so positive conveying characteristics can be achieved.
3. Non-intermeshing twin-screw extruder
The center distance between the two screws of the non-intermeshing twin-screw extruder is greater than the sum of the radii of the two screws.
That's how Twin Screw Extruders for Powder Coatings works, hope it helps.