Custom High-Vacuum Stainless-Steel Chambers

The University of Wisconsin‑Madison’s Department of Physics seeks competitive bids for the design, fabrication, testing, and delivery of custom high‑vacuum stainless‑steel chambers (central cell, transition, Tori, and optional segmented Tori chambers) to be used in advanced laboratory research. Bidders must supply fully finished, vacuum‑clean, non‑magnetic chambers meeting strict leak‑rate and magnetic‑permeability specifications, provide all necessary flange hardware, conduct helium leak testing, and assume FOB‑destination responsibility for freight and insurance. The solicitation requires detailed technical proposals, itemized pricing (including tariffs and duties), compliance certifications, and a vendor information form; all submissions are electronic via the ShopUW+ Sourcing Module, with a closing deadline of 13 Oct 2026 2:00 PM CDT. • Four distinct chamber types (central cell, transition, Tori, optional segmented Tori) with quantities ranging from 1 lot to 2 each. • Technical requirements include µ < 1.05 magnetic permeability, ≤ 1 × 10⁻⁹ mbar‑L/sec helium leak rate, and 1 × 10⁻⁷ Torr base pressure. • Bidders must be registered in JAGGAER, provide a warranty (minimum one year), meet insurance and insurance‑certificate requirements, and may be subject to vendor‑diversity preferences (DVB) if within 5 % of the low bid.