SJ Series is single screw extruder for PP and HDPE rigid and squeezed materials

Short Description:

The single screw extruders are developed for a very basic form of extruder that simply melts and forms the material. Due to their low cost, simple designs, ruggedness, and reliability, single screw extrusion machines are one of the most popular extruding machines and widely used for all kinds of plastics recycling.

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Single screw extruder recycling pelletizing system


SJ Series is single screw extruder recycling pelletizing system is a specialized and reliable system which suitable to the recycling and re- pelletizing. It combines function of plasticization and pelletizing to one step. Such as crushed PE, PP bottles and drums flakes and washed and squeesed dry PE films, also the ABS,PS,PP from the waste pallets, chairs, appliances etc. Capacity can be various from 100-1100kg/h.

Features equipment:

1.For the rigid plastics pelletizing

such as the The screw of the extruder is special designed for the different comparatively contaminated plastics with two times filtering. It can do the PP,PE,ABS and PC rigid plastics and the washed squeezed PP,PE films . The barrel can be wind cooling or water cooling. And the pelletizing type can be watering pelletizing, strand pelletizing and underwater pelletizing.


2.For the washed and squeesed drying PE PP films.

The moisture of the raw material need to be within 5-7%. It is with large silo with screw to automatically transfer the material into the belt, which will transfer the raw material into the extruder.


The machine is with two stages can effectively filter the impurities and easy to pelletize the raw material in the watering pelletizing system.

Case image:


According to customer request, we can make the pelletizing system to strand pelletizing or underwater pelletizing.


With advanced design, high output, good plasticizing, low consumption, and spline gear transmission, it has the advantages such as low noise, stale running, good bearing capacity and long life.

Model for single stage extruder

Model SJ100 SJ120 SJ140 SJ150 SJ160 SJ180 SJ200
Screw diameter 100 120 140 150 160 180 200
L/D 18-42 18-42 18-42 18-42 18-42 18-42 18-42
Rotary speed 10-150 10-150 10-150 10-150 10-150 10-150 10-150
Output(kg/h) 250-350 300-400 500-600 600-800 800-1000 900-1200 1000-1500

Model for two stage extruder

Model SJ130/140 SJ140/150 SJ150/160 SJ160/180 SJ200/200
Output(kg/h) 500 600 800 1000 1000-1200


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