PP LLDPE CACO3 filler with color mastbatch compounding extrusion pelletizing machinery

PP LLDPE CACO3 filler with color mastbatch compounding extrusion pelletizing machinery

Device overview

Twin screw/double screw compounding extruder is specially designed for compounding PE (LLDPE, LDPE, HDPE), PP, PA6, PA66,PC, PEK,TPE and Copolymers such as SBS,Color batches,Filler modified resin and additives ( UV protection Materials, Modified, EVA, black carbon granule, flame-retardant granule.

The machine has excellent mixing performance, good self-cleaning performance and flexible modular configuration characteristivs which make them suitable for processing different types of material.

Different kinds of side doser is used to feeder different kinds or types of material. There is also doser to weight the additives material to make up a prescription.  

Application material and final products

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Layout of the machine

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Parameter of such kinds machine

Screw diameter (MM)21.735.650.562.471.291
Extruder speed (RPM)600400400/600400/500500/600500/600
Main Motor Power (KW)411/1537/45


Capacity (KG)2~1010~8080~150250~400350~500800~1000


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Machine details

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High Speed Mixer

With the high rotation speed of paddle, it will mix the Raw material such as PP PE PVC together with filler(Caco3,UV protection Materials, Modified, color granule or powder, flame-retardant granule,wax or other additives) 

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Gearbox with Parallel tri-axial structure is combination of reduction and matrix. The gear is made of high quality alloy. It had been treated by cementation heat process, the precision grade can reach6th. It guarantees the tooth surface is high speed, overloading, low noise and high torque.

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Screw Elements with Core Axle

Screw & elements: W6Mo5Cr4V2 (6542#) high speed tool steel that had been treated by the vacuum hardening process with the hardness of the surface is HRC58-62.Molding through dedicated grinding machine. The cleanliness is much better than products out of traditional process.

Core axle: High quality alloy steel 40CrNiMo that with high tenacity and durability. It had been treated by the hardening and tempering process

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The barrel is made of 45#forged steel with the abrasion-resistant alloy 101 (Ni-Fe-Cr-W) inside that smooth and abrasion resistant. The hardness is HRC60-64. And each section of barrel has its won fuction.

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Laster Filter

This is laster filter, it can filter the dirty by itself without change the screen net all the time.

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Screen Changer System

The hydraulic screen changer will filter out and remove the impurities inside of the material. There are several types of screen changer: Single plate screen chager, round bar screen changer and laster filter. Customer can use any kind of screen according to the dirty of raw material and where you will use the final pellets.

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Pelletizing System

We have horizontal water-ring pelletizing system, vertical water-ring pelletizing system and under-water pelletizing syste. We can design each way according to the requiremnts. In water-ring die-face cutting system, the rotary cutting blades will be pneumatically fit completely and closely to the die-face surface to ensure efficient cutting. Rotation speed of the blades is automatically adjusted by inverter according to melt pressure at the die face.

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