Processing Materials
HFFR Cable Compounds
Customer Location
South America
Output
800-1200 KG/H
L/D
22:1
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.
- 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
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
- 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
- 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
- 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
Semi-automatic packaging, aluminum foil bags, hot-air vacuum sealing


- 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






