NANJING LESUN SCREW CO.,LTD

The Reasons for the Unstable Extruder Screw Speed

Ⅰ. Common causes of unstable working speed of extruder screw


1. The driving V-belt is severely worn, causing slipping during work.


2. The center distance of the V-belt drive pulley is too small, so that the V-belt drive cannot correctly friction drive with the trapezoidal slope of the pulley.


3. The temperature of the heating material in the barrel is low, and the raw material is not uniformly plasticized, which causes an increase in the working load torque of the extruder screw, and unstable screw speed of the extruder .


4. The thrust bearing of the extruder screw is damaged.


Ⅱ. Impact of unstable speed of the extruder screw on the quality of plastic products


1. The geometric shape and size error of the product is large.


2. The product will often appear horizontal wrinkles.


3. The surface of the product is rough, brittle, or partially hard.


Our company specializes in the production of parallel and co-rotating modular screw element, barrels and screws, covering various models from Ø20mm to Ø300mm. After ten years of vigorous development, our company now has a number of advanced CNC machine tools and special processing equipment for screw manufacturing. Now our machining operations have basically realized intelligence and automation. Advanced processing methods, strong technical force, and sophisticated processing technology ensure that the quality and technical indicators of each production fully satisfy customers. If necessary, please consult.

  • How to Protect the Screw and Barrel?

    How to Protect the Screw and Barrel?

    June 8, 2021What are the ways to protect the screw and barrel? Let's take a look together!Corrosive, abrasive and high-temperature resistant resins may unknowingly damage the screw and barrel. For example, so...view
  • More Details about Screw

    More Details about Screw

    December 10, 2020Double screw generally divided into 5 sections: conveying section, melting section, mixing section, exhaust section, homogenization.1. Conveying section: conveying materials to prevent overflow.2. Mel...view
  • Extruder Screw and Barrel Technology

    Extruder Screw and Barrel Technology

    May 26, 2022The basic working principle of the extruder screw and barrel is to melt and compact the polymer, push it to the mold at constant pressure, constant temperature and constant speed, and form a parison i...view
  • Maintenance of Extruder Screw

    Maintenance of Extruder Screw

    April 27, 2022Ⅰ. Selection and installation of extruder screw1. The extruder screw should be made of alloy steel with wear resistance and small deformation when working in a high temperature environment. After fin...view
top Inquiry