Cascade Four Flights PVC Co-kneader Compounding Line

Cascade Four Flights PVC Co-kneader Compounding Line

WKS 4-Flight Co-kneader Compounding System   4-flight Compounding System

Unique Working Principle

The SJW Co-Kneader is different from traditional single or twin screw extruders because of its unique mechanisms. The spiral of the kneading screw is detached three times at the circumference. In those gaps are the stationary kneading pins, which are fixed inside the kneading case. While the screw is circumrotates, so too does the axis, moving reciprocally.

During this process, the material is not only sheared between the pins and kneading flights, but also inverted. This working process is totally different from traditionally single or twin screw extruders. It improves the effectiveness of kneading by moving transversely and lengthways. As such, it can provide high-quality dispersive and distributive mixing. In addition, by using suitable breechblock, the pressure remains relatively steady. 

 
The XINDA WKS 4-Flight Co-kneader is only designed for PVC compounding and pelletizing, with target capacity 1500-2000kg/h for PVC cable compounds for a single compounding line.
Advantages of the XINDA Co-kneader:
1.  Lower energy input, lower melt temperatures.
2. Extremely homogenous mixing, no shear spikes, equal treatment of polymer matrix.
3. High degree of self-wiping and have no dead spot.
4. Dispersive mixing without destroying delicate fillers.
5. High volumetric loadings of fillers and additives.
6. Efficient blending of liquid components.
7.  Broad application for compounding without changing hardware. 
8. Axially opened split barrel guarantees ease of cleaning and fast maintenance.
9. Replacement parts, such as screws, barrel lining and pins can be changed individually.
 
XINDA WKS Co-kneader: Higher speed, Bigger capacity, Better mixing, Lower energy consumption
 
Typical highlights and benefits of XINDA WKS 4-flight Co-kneader:
1. Optimized intake section: No forcing feeding, large inlet opening, effective backward degassing, improve material transport
2. 4 row of flights increase shear surface, produce more shear energy
3. Improve conveying stability by overlapping flights
3. No open gap between flights and pins
 
Application
PVC compounds      

Soft PVC cable compounds for sheathing, insulation, bedding

Soft PVC compounds
Rigid PVC compounds
 
WKS Serial Four-flight Co-kneader

Model	WKS-100	WKS-120
Co-kneader Screw Dia.	100	120
L/D Ratio	15	15
Max. Screw Speed	500 RPM	500 RPM
Main Motor Power	160-200 KW	220-280 KW
Second-stage Screw Dia.	200mm	220mm
Second-stage Screw L/D	7	7
Max. Screw Speed	60 RPM	60 RPM
Second-stage Motor Power	55-75 KW	90 KW
Reference output (kg/h)	1000-1500	1500-2000

Product in details: