UNSPSC 31101909: Tin investment casting

Tin object cast from investment molds

UNSPSC 31101909 Tin investment casting is a Commodity code that bears no meaningful relationship to the recent state and local procurement activity tagged under it. The City of Atlanta Department of Watershed Management posted a Pre-Advertisement Notice on May 8, 2026 (due May 29, 2026) for comprehensive repair, maintenance, installation, and parts replacement services across nine classifications of industrial pumps — vertical turbine, horizontal split case, submersible, centrifugal, vertical chopper, progressing cavity, piston positive displacement, Watson Marlow, and vacuum/hydraulic pumps. This is pump field service and parts procurement, not tin investment casting. The solicitation requires vendors to operate or access a functional machine shop, provide shaft alignment and welding expertise, maintain OEM-standard repair capability, and deliver 90 percent of required parts within 24 hours and the remaining 10 percent within 72 hours, with one-year parts and labor warranties. Personnel must hold confined-space-entry certification and comply with OSHA lock-out/tag-out and safety protocols. The mismatch between the code name and the actual work being bought suggests either a cataloging error or that tin investment casting plays a subsidiary role in pump component repair that the source does not detail.

The code shows no other recent state or local opportunities in the source block. The single Atlanta opportunity does not indicate geographic spread or represent the actual scope of tin investment casting procurement. Without additional opportunities or clarification, this code presents limited decision value for vendors in the investment casting space, and the Atlanta pump-service solicitation does not align with typical tin investment casting work.