● It adopts efficient screw and
notched barrel, the inner and outer walls are
separately extruded by two extruders for using
different materials and ensuring efficient
● A high speed of production can
be ensured by the corrugated forming system and
forced cooling system combined with water and
air cooling during constant production．The
advanced programmable lubricating system
decreases abrasion of mould blocks to a minimum
while lengthening their lifespan and ensuring
running precision and stable quality.
● The advanced inline double wall
belling function can reach or exceed the
requirement of the state standard, completely
solving disadvantages of the pipe’s creep and
leakage of sealing in sockets.
● Co-extrusion die with special
structure makes the inner and outer walls even
and stepless adjustable, and forming stable .
● The cast mould blocks are made
from special alloy for high precision and
strength and excellent radiation effect.
● A professional PCC (B&R,
Austria) control system is adopted with 15’’
touched colour screen for high automation,
reliable running and easy operation.
● It adopts a
quick changing system for the mould blocks.
● The optimum design of crest
provides a perfect combination of higher ring
stiffness and lower unit weight.
communicative function can realize
tele-diagnosis and maintenance.
● The key and
new product of the State.
● It is certified for CE
quality system by China Quality Certification