Since Uniloy Milacron introduced its latest parison suction technology in 2006, a growing number of major producers in the automotive sectors have embraced the UMA SH Accumulator Head technology, as proven by new orders from leading European companies.

The Parison Suction machines produce 3-D shapes without seams or side flash and are specifically customized as a result of the close partnership between the Uniloy technical team and the customer’s production personnel.

Some machines are for a single resin process based on accumulator head technology, and are designed to withstand temperatures beyond 300 °C for processing most kinds of PA and also PPS- a new material recently developed for blow molding applications, and tested last year by Uniloy on the lab machine. A very quick production change is achieved by an innovative configuration that saves purging time when switching from one resin to the other one.

Other models are for the production of under-the-hood air ducts made with 2 different resins. Two injectors are coupled to an innovative sequential co-extrusion head, designed to minimize the resin path length and streamline the overall process. The advantages of the parison suction process are well known: simpler and less expensive than parison manipulation technology, the parison suction process is used to produce 3-D ducts without seam line, with minimum flash and high energy efficiency, and it is also suitable for sequential co-extrusion.