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