SKW-125 Co Kneader for HFFR Cable Compounds

Processing Materials

HFFR Cable Compounds

Customer Location

South America

Output

800-1200 KG/H

L/D

22:1

 Xinda Reciprocating Co Extruder 3D Animation
 South American Customer SKW-125 Co Kneader for HFFR Cable Compounds 1000KG/H

Device Configuration Overview

The entire production line comprises a raw material handling system, a precision metering system, a co kneader mixing system, an extrusion system, a pelletizing and post-processing system, and an electrical control system, meeting the requirements for the continuous, stable, and efficient production of HFFR cable compounds.

Raw Material Handling System
  • 300L high-speed mixer for processing powder additives
  • Roots blower equipped with a sound insulation system to reduce on-site noise
  • Granule feeding station (300L × 6) and vacuum feeding system (1-to-6 configuration)
  • Powder unloading station (4 units) and powder vacuum conveying system (1-to-2 configuration)

vacuum feeding system

storage silo

Loss-in-weight metering System

The system is equipped with multiple loss-in-weight feeders for the continuous, precise metering of various raw materials, ensuring the stability of the HFFR formulation.

Applicable materials include:

  • EVA, PE, POE, and silicone masterbatch pellets
  • aluminum hydroxide, magnesium hydroxide, and calcium carbonate
  • liquid additives and powder additives

loss in weight feeder

liquid loss in weight feeder

SKW-125 Co Kneader Compounding System
  • Forced feeding system enhances conveying stability for high-filler materials
  • German-made metal separator ensures raw materials are free from metal impurities
  • Oscillating gearbox and main gearbox equipped with German Mayr safety couplings
  • Screw L/D ratio of 22:1
  • Siemens variable-frequency motor and Siemens variable-frequency drive system
  • Thermal oil temperature control system for the barrel ensures stable and precise processing temperatures
  • Vacuum devolatilization system improves product quality

force feeder

temperature control system

gearbox with German Mayr safety coupling

Siemens HMI control system

Two-stage Extruder (SJ-220 Single Screw )
  • Equipped with a viewing window and sampling device to facilitate production monitoring
  • Designed for stable melt conveyance and downstream pelletizing

viewing window

single screw extruder

Pelletizing and Post-processing System
  • Eccentric water-ring pelletizing system ensures stable pelletizing and uniform granules
  • Centrifugal dewatering machine
  • Vibrating screening system
  • First-stage pneumatic conveying to a fluidized bed cooling system, ensuring the moisture content of the finished product meets specifications
  • Second-stage pneumatic conveying to a 2,500L finished product silo

eccentric pelletizing

spin dryer

vibrating screen

fluidized-bed finished product silo

Packaging System

Semi-automatic packaging, aluminum foil bags, hot-air vacuum sealing

Electrical Control System
  • Siemens PLC control system
  • Integrated interlocking control enhances the operational stability of the entire line
  • Centralized control of feeding, mixing, pelletizing, and auxiliary systems
  • A high level of automation facilitates production management
  • Recipe storage allows for easy switching between multiple recipes
  • Process parameter storage facilitates verification and auditing

Electrical Control System

Siemens PLC Touchscreen

Xinda Co Keader Line Advantages

▪  Low-shear compounding results in minimal temperature rise
▪ Suitable for producing highly filled HFFR cable compounds
▪ Precise metering ensures formulation stability
▪ Vacuum devolatilization enhances product quality
▪ Automated control ensures continuous, stable operation
▪ High-capacity design boosts production efficiency
30+

Years of experience

Expert in Cable Compound Compounding

Jiangsu Xinda