SKW Series Four-Flight Co-kneader Compounding System
Four-flight Compounding System
Based on 3-flgiht compounding design, XINDA develops latest new technology with 4 flights. The XINDA SKW Kneader each spiral is broken by four gaps per revolution to locate the kneading flights. Four rows of kneading pins, which are individually inserted in the barrel per 90 degree, are intermeshed with these flights. With the same L/D ratio, it achieves more mixing, but less friction heat. The reciprocating wobble-box synchronizes the shaft rotation and oscillation so that each revolution of the screw is accompanied by one full stroke forward and backwards. This ensures optimal distributive and dispersive mixing with minimal energy consumption.
Advantage of XINDA Co-kneader
Lower energy input, lower melt temperatures
Extremely homogeneous mixing, no shear spikes, equal treatment of polymer matrix
High degree of self-wiping and have no dead spot
Dispersive mixing without destroying delicate fillers
High volumetric loadings of fillers and additives
Efficient blending of liquid components
Broad application for compounding without changing hardware
Axially opened split barrel guarantees ease of cleaning and fast maintenance
Replacement parts, such as screws, barrel lining and pins can be changed individually
XINDA SKW Co-kneader: Higher speed, Bigger capacity, Better mixing, Lower energy consumption
Application
Cable Compounds: Masterbatches:
- HFFR High concentrated color MB
- XLPE Black and white MB
- Semi-conductive insulating High loaded filler MB
- Black sheathing PET/PP/PA fiber MB
- Metal injection molding
Model | SKW-85 | SKW-105 | SKW-125 |
Co-kneader Screw Dia. | 85mm | 105mm | 125mm |
L/D Ratio | 15-22 | 15-22 | 15-22 |
Max. Screw Speed | 600 RPM | 600 RPM | 600 RPM |
Main Motor Power | 110-160 KW | 200-280 KW | 350-450 KW |
Second-stage Screw Dia. | 150mm | 180mm | 220mm |
Second-stage Screw L/D | 7 | 7 | 7 |
Max. Screw Speed | 60 RPM | 60 RPM | 60 RPM |
Second-stage Motor Power | 55 KW | 75 KW | 110 KW |
Reference Output (KG/HOUR) | SKW-85 | SKW-105 | SKW-125 |
HFFR Cable Compounds | 200-400 | 500-800 | 800-1500 |
Black sheathing | 200-400 | 500-800 | 800-1500 |
Semi-conductive Insulating Compounds | 200-400 | 500-800 | 800-1500 |
Silane XLPE Cable Compounds | 200-400 | 500-800 | 800-1500 |
High Concentrated Color MB | 150-350 | 400-700 | 700-1200 |
Carbon Black MB | 150-350 | 400-700 | 700-1200 |
High Loaded Filler MB | 200-400 | 600-1000 | 900-1600 |
Fiber MB | 150-350 | 400-700 | 700-1200 |