>> Flexibility and maximum product quality of pellets for the cable industry.

Processing of HFFR

Consistency, reproducibility and product purity are major requirements for the production of high-filled, flame retardant cable materials (HFFR). Continuous processing with Coperion Kombiplast plants completely satisfies these requirements.

The Kombiplast machine from Coperion features a two-stage processing system. This comprises a ZSK twin screw extruder and an ES-A single screw discharge. The systems feature constantly high compounding quality at maximum throughputs. They have been proven for many years in the cable industry and are used for a wide range of applications.

Typical cable compounds which are made in Kombiplast plants

Halogen-free, self-extinguishing formulations for cables (HFFR)
Compounds for low, medium and high-voltage cables on an elastomer basis
Cross-linkable PE (mixing of peroxide)
Temperature and shear-sensitive products such as PVC insulations and sheaths,
XLPE and radiation cross-linkable plastics
Semiconductor compounds and special products which contain alloys and blends

Kombiplast PVC/HFFR hybrid

Structure of a Kombiplast PVC/HFFR hybrid plant from Coperion
Structure of a Kombiplast PVC/HFFR hybrid

The PVC/HFFR hybrid systems are a special version of the Kombiplast. These enable PVC pellets or halogen-free, flame-retardant (HFFR) compounds to be produced economically for the cable industry.

Only a few changes to the Kombiplast PVC/HFFR hybrid are necessary to change products from PVC to HFFR or vice versa. The change can be made within 2 hours depending on the equipment in the plant and the machine size.

Set-up of a Kombiplast plant for the continuous processing of HFFR

Set-up of a Kombiplast plant from Coperion for the continuous processing of HFFR

Kombiplast plant