Method of Protecting Screw and Barrel

Corrosive, abrasive and high temperature resistant resins may unknowingly damage the screw and barrel. For example, some engineering materials, thermoplastic elastomers, and biopolymer materials sometimes will form a corrosive environment. In addition, reinforcement materials (such as glass fiber and spheres), some fillers and additives are abrasive.


In order to avoid affecting production efficiency and product quality, modified plastics processing companies must closely monitor the hazards of those materials which may cause to equipment. To maintain high machining standards, it is necessary to establish a preventive maintenance program. Thus, screw and barrel should be inspected and measured as needed. Moreover, the screw should be pulled out for re-installation or replacement, as minimal wear and tear can affect product quality.


The best way to protect equipment from corrosive and abrasive resins is to choose the right materials to manufacture the screw and barrel. However, the processing cost of a wear-resistant barrel and screw is more than standard polyolefin screw about 3 ~ 4 times if it is necessary to cope with the corrosion, wear and high temperature melt. Though the wear-resistant alloy is relatively expensive and difficult to process, it can prolong the service life and the maintenance intervals.

  • PLASTINDIA 2018

    PLASTINDIA 2018

    April 12, 2019Exhibitition time:2018.02.07-2018.02.12 Exhibition city:Gandhinagel, India Lesun Booth No.: 12-A21view
  • Selection of Extruder Screw Material

    Selection of Extruder Screw Material

    January 15, 20211. Extruder screwThe extruder screw is the key component of the extruder. The performance of the screw determines the productivity, plasticizing quality, dispersion of additives, melt temperature and ...view
  • Design of Extruder Screw

    Design of Extruder Screw

    December 10, 2020As one of the important parts of the main extrusion system of plastic extruder, plastic extruder screw design is very exquisite: not only plays the role of conveying plastics but also plays an extreme...view
  • Daily Maintenance of Twin Screw Extruder Barrel

    Daily Maintenance of Twin Screw Extruder Barrel

    January 15, 2021Maintenance knowledge of twin screw extruder barrel1. After the machine has been used for a period of time, a comprehensive inspection should be done to check the tightness of all screws.2. In case of...view
top Inquiry