Double-stage extruder （SP Series） and twin-screw extruder (TSE Series) are the main product series of Kairong Group & Haisi Extrusion. There are big differences between these two models.

How to make masterbatch metering plan? 1. Industry background and current situation 2. Typical applications 3. Measurement and color matching

The choice between a single-screw extruder and a twin-screw extruder is a critical decision in manufacturing. Each has its unique characteristics, advantages, and applications. Understanding their differences and assessing your specific production needs is vital to making the right choice for your manufacturing processes.

In the daily operation of a twin-screw extruder, there are several key considerations to keep in mind to ensure smooth and efficient processing.

This article introduces the basic principles of twin screw extrusion of plastics, including Mechanical principles，Thermal principle，Deceleration principle，The feed acts as a coolant，In the feed zone, sticks to the barrel & slides onto the screw，Materials cost the most，Energy costs are relatively unimportant，The pressure at the end of the screw is very important，Output = displacement of last thread +/- pressure flow and leakage，Shear rate plays a major role in viscosity， and The motor is opposed to the barrel these aspects.

The auxiliary equipment of the twin-screw extruder unit mainly includes a pay-off device, a straightening device, a preheating device, a cooling device, a traction device, a meter counter, a spark tester, and a wire take-up device. However, because of the different purposes of the twin-screw extruder, the auxiliary equipment used in the selection is also different, such as cutters, blow dryers and printing devices. So let us understand in more detail what a twin-screw extruder is.

(1) Temperature. Temperature has a significant impact on the extrusion of plastics and the performance of the parison: it can reduce the melt viscosity, improve the melt flowability, reduce the power consumption of the extruder; it can appropriately increase the screw speed without affecting the mix