HFFR Cable Compounding

Due to environmental protection and safety requirements, halogen-free flame retardant materials (HFFR) are increasingly used in low-voltage cables and building wires. In order to obtain higher quality HFFR compound, it is necessary to ensure that the high loading of flame retardants can be uniformly dispersed in the polyolefin resin, while processing at the lowest possible melt temperature. A stable and high-precision feeding system also becomes the key to maintaining product purity and consistency.

hffr cable
hffr cable compounding
hffr cable compounds

Processing Steps:

Material handling system-Compounding and extrusion- Air cooling die face pelletizer-Air cooling & conveying system – Classify – Packing system

Processing steps: Material handling system-Compounding and extrusion- underwater pelletizer -water cooling system and dryer – Classify – Packing system

Xinda Co Kneader

HFFR compound system

offer several specific benefits

Gentle shearing:

Co-kneader’s unique combination of screws, pins and barrels can provides low shear which will reduce the breakage to materials’ physical character.

Flexible liquid injection position:

Liquid ingredients can be conducted into melts at designated position which helps customer to achieve the best formula solution.

Precise temperature control:

Temperature prob can immerse into melts through hollow pin in each processing zone so that we can get the accurate real-time temperature all the time .

High filling rate of inorganic powders:

Opening of two or three inlets & low shearing allow the maximum loading rate of inorganic powders.

> Low process temperature:

The process temperature can be controlled in a narrow zone by precise temperature control of each zone.

> Homogeneous mixing effect:

Co-kneader’s multiple flights interacted with the pins provides excellent dispersing  effect by increasing the mixing circles.


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