Views: 0 Author: Site Editor Publish Time: 2025-08-20 Origin: Site
The screw is the "heart" of the extruder, and its condition directly impacts product quality, production efficiency, and equipment life. Extending the life of the extruder screw is crucial to ensuring stable production and economic benefits. As the inheritor of the Jinhailuo 
, Suzhou Jwell Precision Machinery, drawing on years of screw manufacturing experience, reminds you: Selecting a high-quality screw is only the first step; proper maintenance is also crucial to unleashing the full potential of your equipment.
In this issue, Suzhou Jewell will provide a detailed introduction to extruder screw maintenance methods to help you extend screw life and ensure stable and efficient production.
01.Material selection and design optimization
1.Optimize screw structure
Suzhou JWELL's technical team has designed efficient and reasonable screw structures and barrel forced feeding and conveying structures according to the characteristics of different materials and products, which greatly reduces energy consumption and increases equipment output.
2.Choose wear-resistant screw
Suzhou JWELL uses high-quality, high-performance steel, and utilizes plasma automatic spray welding equipment, surface alloy spray welding, and centrifugal casting of alloys inside the barrel, along with alloy sleeves, to significantly improve the wear resistance of the screw and barrel. If you are processing highly abrasive materials such as glass fiber and mineral fillers, you can choose Suzhou JWELL's wear-resistant screws to extend the service life of your extruder screw.
02.Reasonable use and operating regulations
Controlling processing parameters
Avoid insufficient preheating and overpressure operation. For example, the screw of the plastic machine needs to match the appropriate melting speed and back pressure to prevent the screw from being worn due to excessive friction or excessive force.
Prevent foreign matter from entering
If there are metal filings, unmelted impurities, etc. in the raw materials, they will seriously scratch the screw and need to be filtered through filters, magnetic hoppers and other devices.
Standardize the shutdown process
Before stopping the machine, add cleaning material to clean the residual material in the screw to avoid carbonization and agglomeration of the material under high temperature, which may damage the screw when starting next time.
03.Regular maintenance and cleaning
Material pretreatment
The raw materials must be dried to prevent moisture from corroding or causing bubbles within the screw, which could indirectly damage the screw.
The crushed material must be screened to remove impurities and prevent sharp particles from scratching the screw surface.
Regular cleaning
Regularly disassemble the screw and clean it with specialized cleaning agents or resin discharge to remove impurities such as residual hot melt plastic and wear materials from the screw and barrel. This prevents carbonization and solidification of the material on the screw surface, thereby avoiding wear and corrosion.
Also, the cleaning frequency can be determined based on production conditions and screw wear. Carefully clean areas prone to material accumulation, such as the thread grooves, shear mixing elements, and joints, to ensure no residual material buildup.
Inspection and maintenance
Regularly check the screw surface for scratches, wear or deformation. Polish and repair any minor damage immediately. If the wear is severe, replace the parts.
Regularly add lubricant to the main transmission parts of the screw (such as bearings and gears) to reduce mechanical wear.
ABOUT US
Suzhou JWELL uses the brand of Jinhailuo (founded in 1978), integrating professional design and manufacturing of various precision screws, barrels and related accessories for plastic machinery, and is committed to providing solutions for core components of global plastic machinery!
Suzhou JWELL Precision Machinery
Add: No.18,Dong'an Road,Chengxiang Industrial zone,Taicang,Suzhou city,China
Tel：+15806229299 +15806226268
