Daily maintenance of single screw extruder


Ningbo Fangli Technology Co., Ltd. is a mechanical equipment manufacturer with nearly 30 years’ experiences of plastic pipe extrusion equipment, new environmental protection and new materials equipment. Since its establishment Fangli has been developed based on user’s demands. Through continuous improvement, independent R&D on the core technology and digestion & absorption of advanced technology and other means, we have developed PVC pipe extrusion line, PP-R pipe extrusion line, PE water supply / gas pipe extrusion line, which was recommended by the Chinese Ministry of Construction to replace imported products. We have gained the title of “First-class Brand in Zhejiang Province”.

Here, we’d like to briefly introduce some daily maintenance of single screw extruder as follows for your reference:

1、 The single screw extruder shall be checked once after being used for a period of time to check the tightness of all screws.

2、 In case of power interruption in production, the main drive and heating are stopped. When the power supply is restored, each section of the barrel must be reheated to the specified temperature and kept warm for a period of time before starting the extruder.

3、 After 1500 hours before the new extruder is used, there will be impurities in the reduction gearbox. Therefore, clean the gear and replace the lubricating oil of the reduction gearbox.

4、 If the steering full degree of the instrument and pointer is found, check whether the contact of the thermocouple contour is good.

5、 No sundries are allowed in the material, and it is strictly prohibited for hard objects such as metal, sand and stone to enter the hopper and extruder.

6、 When opening the material barrel cover or air extraction cover, prevent foreign matters from falling into the host.

7、 There should be enough preheating and heating time. Before starting, the manual turning should be light and quick. Generally, the temperature should be constant for ~1 hour after reaching the process set temperature.

8、 The screw can only be started at low speed, and the idle time shall not exceed 3 minutes.

If you need more information, Ningbo Fangli Technology Co., Ltd. welcomes you to contact for a detailed inquiry, we will provide you with professional technical guidance or equipment procurement suggestions.

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