800kg Capacity of Single Screw Extruder with Model Se150

Principle of single screw extruder:

Mouth last thread started calling feeding section of the material can't plasticizing here; but to preheating, squeezing the reality, the past old extrusion theory is that the material is loose, then by showing that the material is actually a solid plug, that is to say here after squeezed a solid material like the plug, so as long as the delivery task is its function.

The principle of single-screw extruder: the second stage is called compression stage when the volume of the screw slot decreases gradually from large, and the temperature should reach the degree of plasticization of the material. The compression here is produced by the conveying stage 3, and the compression here is one. This is called the compression ratio of the screw --3:1.

Principle of single screw extruder: the third section is the metering section where the material maintains the plasticizing temperature. It is only like the metering pump that accurately and quantitatively convey the melt material to the head. At this point, the temperature cannot be lower than the plasticizing temperature, generally slightly higher.

Single-screw extruder is mainly used for extruding soft and hard polyvinyl chloride, polyethylene and other thermoplastic plastics. It can be combined with corresponding auxiliary machines (including forming head) to process various plastic products, such as film, tube, plate, ribbon, etc., and also used for granulation.

Advanced plastic extruder design, high quality, good plasticization, low energy consumption, using involute gear transmission, with low noise, smooth operation, large bearing capacity, long life and other characteristics

Function:
Pipe extrusion: applicable to pp-r pipe, PE gas pipe, PEX crosslinking pipe, aluminum plastic composite pipe, ABS pipe, PVC pipe, HDPE silicon core pipe and all kinds of co-extrusion composite pipe.

Sheet and sheet extrusion: suitable for extrusion of PVC, PET, PS, PP, PC and other profiles.Other kinds of plastic extrusion such as wire, rod, etc.
 

Profile extrusion: adjusting the speed of the extruder and changing the structure of the extruder screw can be applied to the production of PVC, polyolefin and other plastic profiles.Modified granulation: suitable for blending, modifying and reinforcing granulation of various plastics.

Concept:
 

concept

High speed and high yield extrusion on the basis of high quality.

Low temperature plasticizing design concept, to ensure the extrusion of high quality products.

Two-stage overall design, enhanced plasticizing function, to ensure the adjustment of high-performance extrusion.

Special barrier, comprehensive mixing design, ensure the mixing effect of materials.

High torque output, extra large thrust bearing.

Gear, shaft for high strength alloy steel, carburizing, gear grinding treatment.

High hardness, high finish, low noise.

PLC intelligent control, can achieve the linkage between the main and auxiliary machine.

Easy to monitor the man-machine interface, easy to understand the state of processing and machine.

The control mode (temperature controller) can be replaced as required.

The material is 38CrMoAL/A nitriding treatment, wear resistant.

Strict temperature control precision, air-cooling combined with water cooling.

Unique inlet design, with perfect water cooling device.

The screw barrel with groove surface feeding bottom sleeve can enhance the feeding function and provide guarantee for high speed and high yield extrusion

 

Scope:

Application: all thermoplastic extrusion molding, extrusion granulation

The characteristics of

Hard tooth surface gear box, ac or dc stepless drive speed adjustment.

New screw structure, uniform melting, low melting temperature and high yield

The material of screw barrel is nitrided steel 38CrMoAIA, the hardness of surface alloy is higher.

Cast copper, cast aluminum heater, according to the requirements of air cooling and water cooling.

Advanced electrical control system

The advantages and disadvantages:

Advantages: single screw extruder design simple, cheap, and widely used.

Disadvantages:

(1) the material transportation of single-screw extruder mainly relies on friction, which limits its feeding performance. Powder, paste, glass fiber and inorganic filler are difficult to be added.

(2) when the head pressure is high, the countercurrent increases and the productivity decreases.

(3) the single-screw exhaust extruder has little effect on the surface renewal of the exhaust area, so the exhaust effect is poor.

(4) single-screw extruder is not suitable for some processes, such as polymer coloring, thermosetting powder processing.