We are pleased to announce that the two sets of 1500L screw extrusion sigma mixer manufactured for our Polish customer
have been successfully completed. They will be used for plastic modification production.
As this sigma mixer used for modified plastics production,so the customer require some special functions and Jiahe
Shengtong Machinery’s engineer provide suitable configuration:
1. 2sets 55KW motor with hard gear face gearbox,make sure provide strong power.
2. The sigma kneader have screw extruder to discharge.
3. Double sigma blades provide high torque while also offering strong kneading and efficient mixing.
4. Double sigma blades’s speed controlled by inverter 0-23RMP/0-38RPM(slow/fast).
5. Screw extruding speed variable by inverter 0-65RPM.
6. Inner contact parts made by SUS304 with mirror polished,the jacket made by carbon steel.
7.Jacket cycle thermal oil to heat,the temperature of raw material will displayed on control cabinet.
8. The extruder outlet with automatic cutting system,it will cut the products as setting weight.
How to choose a sigma mixer(z blade mixer) for plastics?
1.Choose a suitable power motor as the viscosity of raw material, for materials with large volume and high viscosity,
dual motors is the first choice.
2. The sigma kneader can be sigma type mixer or z type mixer. If the material has a high viscosity and requires strong
shearing force, z-shaped blades can be considered.
Sigma shape blades facilitate kneading and squeezing of materials, and can efficiently remove air bubbles trapped inside the material.
3. The inner contact parts can be made by SUS316L or SUS304 with mirror polish to reduce the residue of melted plastic
on the inner wall of the mixing chamber.
The jacket can be made by carbon steel or SUS304.
4. For high viscosity material,screw extrusion discharging or hydraulic tilting discharging are the first choice.
If the final products can be flow,the bottom valve can work.
The screw extrusion discharge can be equipped with an automatic cutting system, which can cut the materials into small pieces
according to their weight or length.
5. The sigma mixer jacket and blades can cycle thermal oil/steam to heat,or install electrical heating system in jacket.
The screw barrel can be heated too,or it can be cold by cycle cold water.
6. The motors should have inverters control blades’ speed.
7. If you need to remove the bubbles from the product, a vacuum system is necessary.
8. If the added modifier contains any flammable or explosive components, an explosion-proof system needs to be installed.
9. Installing the PLC system enables continuous automated production, which can prevent variations in quality among different batches.
If any requirement about sigma mixer for plastics or any questions about mixer for viscosity material mixing,please contact Jiahe
Shengtong Machinery,we will provide quotation soon.
