Modular Screw Special For Three Screw Extruder

kalshine offer Modular Screw Special for three Screw Extruder, we have all kinds of kneading shapes, material characteristics are considered repeatedly, the screw element is wear resistance and high precision can be used a long time.

Product Details

How does three screw extrusion work?

The three screws of the three screw extruder are arranged in parallel and rotate in the same direction, which is equivalent to the simultaneous operation of two pairs of twin screws. Therefore, it has better mixing characteristics and richer arrangement and combination.



1.     Fully plasticized, High product quality, Due to the existence of two meshing areas, the rolling area is multiplied to make the dispersion more uniform

For example:

PP Flame retardant cable material is produced. After internal mixing, the material is made by 65 twin-screw extruder with a length diameter ratio of 40. The strength is 13 MPa and the elongation is 185%. However, with Φ 65 three screw machine, the material strength is 14MPa and the elongation is 237% without internal refining.


2. High yield

For example:

Production of 80% high concentration filled masterbatch ,The output of 52 parallel twin-screw extruder is 60 kg/h, and that of 52 parallel three-screw extruder is 350 kg/h, and twin-screw extruder should use high-speed mixer and internal mixer, otherwise it can only do 40% filling concentration. On the contrary, three screw machine is not needed.


3. Energy saving

For example:

Model 52 three screw extruder produces carbon black masterbatch with 50% concentration,

The motor power is 75kW, the output is 180kg / HR, and the main motor current is 90a, so the specific power is only 0.2-0.25kw/kg


Although at present, the three screw extruder is unstable in extruding some raw materials, its price is much higher than that of twin screw extruder, and its acceptance degree is not as high as that of twin screw extruder, but with the development of technology, it will be a new trend, which is used in the plastic compound pelletizer with larger output and higher filling.


Our engineers adjust the kneading size according to many years of production experience, and specially produce a series of screw elements, mandrel and barrel for 3-screw extruder. Customized processing services are also carried out at the same time. Welcome to consult and purchase.

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