HDPE large diameter hollow wall pipe has been recognized as a substitute for cement pipes and cast iron pipes because it possesses superior advantages in water drainage and water sewage conduit. We have the strongest technology advantages and rich experience on pipe production. The quality and performance of our HDPE hollow wall winding machinery represent the highest level in China and leading level in the world. Features: ??? The line adopts two sets of single-screw extruders to ensure high-speed and high-quality extruding. ??? Unique design of composite die-head and forming by spiral rotation ensure high production efficiency and quality. ??? Advanced PLC control system makes operation very convenient and operation very efficient. ??? Special pipe fittings are adopted and connection is very convenient. Keywords: PE spiral hollow wall pipe, PE extruder, plastic extruder, plastic extrusion, spiral pipe extrusion, winding pipe extrusion, winding pipe extruder, PE winding pipe, PE spiral pipe extrusion, PE extruder, PE extruder manufacture