UNSPSC 31143000: Gas assist moldings

Parts produced by an injection molding process involving injection of high pressure nitrogen gas into the resin melt stream immediately after injection of the resin allowing the gas to displace a portion of the resin and force the resin to the walls of the mold.

UNSPSC 31143000 Gas assist moldings is a Class code that encompasses injection molding equipment and related manufacturing machinery used in polymer processing and product fabrication. State and local governments procure under this code primarily through higher-education institutions and research facilities that operate polymer laboratories and manufacturing centers. The University of Southern Mississippi recently solicited a 110-ton electric injection molding machine with specific technical requirements including a 40mm screw diameter, 171-gram shot capacity, and maximum barrel temperatures of 800 degrees Fahrenheit, designed for integration into the Mississippi Polymer Institute Processing Lab. Bidders must provide delivery within 16 weeks, one full day of installation and familiarization, three days of onsite or online training, a minimum one-year warranty, and lifetime online and on-call technical support. Contract awards are made to the lowest responsible bidder meeting all specifications, with payment on standard terms of 2% discount if paid within ten days or net 45 days.

Recent activity under this code concentrates in Mississippi, where the University of Southern Mississippi posted an IFB (sealed bid solicitation 3160008023) with a response deadline of May 12, 2026. The University's procurement office specified strict dimensional and performance constraints reflecting the physical limitations of existing laboratory space—the molding machine must fit through doorways measuring 82 inches in height by 70 inches in width and maintain a maximum footprint of 179 inches by 50 inches. The source identifies no other recent state or local opportunities under this code and no incumbent vendor or existing equipment requiring integration.