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PEX-AL-PEX Composite Pipe Extrusion Line

Our Xinrong Aluminum-plastic composite pipe is a new type of composite pipe manufactured by extrusion molding process. It consists of polyethylene layer (or cross-linked polyethylene) – adhesive layer – aluminum layer – adhesive layer polyethylene layer ( or cross-linked polyethylene) five-layer structure. The aluminum layer is divided into overlap welding and butt welding forming process.

Our machine can form five layer in one step, to save machine space and increase stability, production yield can reach 98%, line speed is also higher.


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Technical parameter for extrusion line (for reference only, can be customized):

ModelScrew diameter
L/DExtruder Qty.Pipe range
Capacity (kg/h)Main motor power(kw)Total power
Line length

Main machines of extrusion line

Aluminum foil unwinding machine

Double station, winding station can be rotated, easy for changing station.

Aluminum foil storage device

To store aluminum foil when one aluminum foil disc finish and use ultrasonic connector to connect to another aluminum foil disc.

Glue layer extruder

To extrude both inner and outer glue layer.

Inner layer extruder

To extruder plastic inner layer, can extrude PEX, PERT, PE, PP or PPR material.

Outer layer extruder

To extruder plastic outer layer, can extrude PEX, PERT, PE, PP or PPR material.

Extrusion die head

All five layers are formed in the die head (plastic inner and outer layer, glue inner and outer layer, aluminum middle layer).

Cooling tank

With cooling water ring at entrance and air ring at exist. With automatic air sealing system inside.

Haul off unit

Haul off unit provides sufficient traction force to pull pipe stably. Have sync function with extruders and air sealing system.

Double station coiler

To coil pipe into roll, easy for storage and transportation. Double station to ensure continuous pipe winding.

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