China Twin Screw Extruder Machine

                                            China Co-rotating Twin Screw Extruder

Twin screw extruder has normal torque type extruder and high torque type extruder. Normal torque type extruder can be applied to large number of conventional plastic material modification and some material with low viscosity and high MFI. It is highly practical, cost effective and stable machine. High torque extruder is applied to modification, compounding, reaction, extrusion molding, coloring, etc. It could meet middle and high end customer with capacity and quality. Twin screw extruder has following models

Bio-degradable compounding and pelletizing machine, engineering plastic pelletizing machine, high filler pelletizing extruder machine, pet bottle flakes pelletizing machine, plastic powder modification extruder, thermoplastic elastomer extruder machine, silicone adhesive extruder, TPU reaction extruder machine, various color masterbatch extruder machine, WPC pelletizing extrusion line, special functional plastic extruder, and lad extruder machine.

Co-rotating twin screw extruder adopts assembly type principle. The motor type, the gearbox type, screw element configuration, the barrel type, the LD ratio, feeding type, venting portal, screen changing, way of granulating and control mode can be designed according to different material properties and material features.

Material feeding type includes single screw feeding, double screw feeding, side feeding, forced feeding to meet different material requirement such as powder, pellet, lumps, fiber and liquid material.

Gearbox features

It takes parallel three axles transmission integrating reducer and torsion distribution, bearing is imported brand.

The computer designs to optimize gear parameters and assure safety affluence.

The transmission parts are chosen very carefully. The super strengthens alloy carburizing steel, gear teeth strengthen treatment to assure high torque, high accuracy and low noise.

The lubrication system adopts soaking and spraying combination types.

Barrel Features

The rectangle barrel with reflux refrigeration channel is optimized which makes temperature difference in D areas smaller.

New design of heating device tightens the barrel more closer so the heat transfer more efficiency and heater has a long longevity.

According to the material and special technics demands, the material of barrel can use high quality nitride steel, corrosion proof or antifriction with corresponding process.

Cutting type, such as water-cooling strand, air cooling strand, water ring pelletizing, underwater pelletizing, die face hot cutting.

Screw Elements Features

The screw elements are produced by CNC machine. Screw elements can fulfill efficient self-cleaning, transmission, compounding and pressure forming process. The screw is made of high alloy steel 38CrMoAIA, W6Mo5Cr4V2, Cr12MoV. They are high corrosion resistance and anti-friction.

Extruder machine have

Laboratory extruder, color masterbatch making extruder, side feeding extruder, underwater pelletizing line, PET strand pelletizer, high filler masterbatch pelletizing line, kneading machine

Control system features

Adopting imported PLC omron or siemens to achieve optimized process control. Stronger function, steady performance and high accuracy.

It can be also accomplished full set link lock protection, alarm and emergency stop.

Operation interface on touching screen is visual and marked easy for operation

Photo of Twin Screw Extruder Element

Technical Data Sheet of Twin Screw Extruder