Pipe Pellitizer Twin Screw Extruder Machine , Double Screw Extruder

Product Specification

                                                    SHJ Series Plastic Parallel Twin Screw Extruder Machine

The SHJ series plastic parallel twin-screw extruders have screw threads made of high grade steel with a five-axis machining tool to reduce clearance and wear.

This SHJ series plastic parallel twin screw extruder is equipped with PLC controllers and high-level touch screen panels for manual or automatic operations.

The SHJ series plastic parallel extruder’s operating parameters are input and displayed on the touch panel. Designed by CAD, the closely intermeshed screw elements have excellent self-wiping characteristics, and can be interchanged with each other easily. Besides, twin-screw compounding extruder is installed with the newly designed torque distribution system, high-precision grinding of hardened gear teeth, and imported high-quality key bearings.

Furthermore, the system is capable of remote control. This SHJ series plastic parallel twin screw extruder can be extensively used in many fields, such as polymer blending, homogeneity, plasticization, filling modification and granulation, engineering polymer and glass fiber reinforcement, master batch, functional parent granule, special material, power coating material and cable material reactive extrusion, degassing and devolatilization, etc.

All SHJ seriesSHJ series plastic parallel twin-screw compounding extruders meet or exceed CE and international safety standards. We can also design an entire twin screw extruder production line to meet customers’ specifications

Driven motor: It is main part of PVC pipe conic double screw extruder. We'd better choose good brand AC type driven motor matching with inverter controll for saving power running cost.

Gear recuder box: It is used for connecting motor and screw . As we know that motor rotating speed is very high , if we connnect motor and screw directly, screw rotating speed will be too fast, mixed PVC resin material will be not melting and plasticing inside of barrel. So we choose gear reducer box for connecting motor and screw for reducing rotating speed of screw through size and teeth of gear changing in the gear box.

Screw and barrel: It is most important part of conic double screw extruder. Quality of PVC pipes main depends on this part. In normal, the surface of screw should be paint double alloy for anti-wear due to mixed PVC resin material including high percent of calcium carbonates. At the same time, the design of screw structure is a key point for extrusion capacity and quality, now design of screw is becoming standardization and homogenization on the market, quality of screws are stable for most suppliers now.

Feeder: It is used for feeding mixed PVC resin material into barrel from the hopper on the top of extruder. This device is developing from single screw feeding to parallel screw feeding process. Now more and more PVC pipe making machine manufacturers adopt parallel screw feeding device for avoding mixed PVC resin crack-bridging while material transported into barrel on the bottom of hopper.

Casting aluminum heater: It is used for heating barrel and screw which ensure mixed PVC resin material can be plasticizing and melting under the suitable temperature when mixed PVC resin material comes into inside of barrel and transported forward by screw.

Cooling blower : It is used for cooling barrel and screw. Due to casiting aluminum heater is keeping heating, temperature of screw and barrel will be increasing and if it excess setting temperature, cooling blowers will be started to work for cooling barrel which avoid PVC material resolved in the inside of barrel due to temperature is too high.

Vaccum pump : It is used for sucking the moisture of the mixed PVC resin material which is under suitable temperature from the barrel in order to make sure getting the final PVC pipes better quality.

Hopper : It is used for keep the mixed PVC resin material in the silo and make sure material can be into barrel continuously. It is like a material transport station.

Control Cabinet: It is used for control whole cornic double screw extruder running by switchs or PLC programes according to different circuits control required.

Features of Plastic Parallel Double Screw Extruder Machine

• Screw structure and compression ratio can be designed according to different products & different output re quirement.
• All mechanical components are of high precision.(All processed in our CNC center)
• International brand electric components, such as: Siemens brand, Schneider brand, ABB brand and so on.
• Strict assembling standard and QC standard to ensure high assembling precision