The polyethylene manhole production process involves five steps, making the pattern, making molds, melting materials, pouring materials and finally cooling. Polyethylene manhole production line of Pars Ethylene Kish is one of the most advanced and newest manhole production equipment in the world. Pars Ethylene Kish manholes are designed according to different needs and uses, and are national and international, and are produced using rotary molding technology (rotary molding).
The raw material is granular, which is initially converted to a powder by a pulverized mill with a special roller for the production of powder from polyethylene materials, and after the special molds attached to the rotary machine arms, was poured into the mold. Afterwards, the molds are rotated in a rotary kiln under high temperature and under precise time control, and after the exact time of heat shrinking, and at the end of the cooling process, the process is carried out.