The plastic pipe extrusion process


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”.



The plastic pipe extrusion process is divided into three stages:


1Plasticization of raw materials, that is, through the heating and mixing of the extruder, the solid raw materials become uniform viscous fluids;


2Forming, that is, under the action of the extrusion parts of the extruder, the molten materials can continuously pass through the die-head at a certain pressure and speed, so as to obtain a certain section shape;


3Cooling forming, that is, through sizing and cooling treatment, the molten material can fix the obtained shape and change it into a solid state (plastic pipe).


The above three stages are realized by the main machine and auxiliary machine, or the extrusion unit. Specifically, the main machine is the extruder, and the auxiliary machine consists of the head, sizing device, cooling device, haul off device, cutting machine and stock device.


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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