Sisneros Bros. Mfg. · Belen, New Mexico
Fully Welded Stainless Steel Ductwork
Sisneros Bros. Mfg. is a family-owned manufacturer in Belen, New Mexico, specializing in fully welded stainless steel ductwork. Every system is fabricated to the project take-off, from standard round duct and fittings to flanged and clamp-together connections and custom oval and rectangular runs, giving contractors a single source for the complete stainless package.
What sets Sisneros apart is how its stainless is built. Each section is precision-rolled for true roundness and joined with continuous, full-penetration welds by AWS-certified welders, so there are no lock seams or sealant joints to loosen or corrode over time. The result is smooth, leak-tight duct that resists corrosion, cleans easily, and stands up to high heat, a long-term investment for demanding facilities from battery manufacturing and recycling plants to food, pharmaceutical, and chemical processing.
Stainless Steel Products
Built to the Take-Off, Welded to Last
Every Sisneros stainless system is custom fabricated. Industrial Ducting Systems specifies, quotes, and coordinates the package with your project team.
Welded
Fully Welded Stainless Duct
Round, oval, and rectangular duct with TIG, MIG, or plasma full welds, fabricated to the take-off for applications where corrosion resistance matters.
Flanged
Flanged Stainless Duct
Bolted and Vanstone flanged connections for larger runs from 20 in. diameter, with custom flanges built to match an OEM connection spec.
Clamp-Together
Clamp-Together Stainless
Clamp connections for 3 in. through 18 in. diameter, with flat-lip and curled-edge clamp options, slip fit, and bell and spigot joints.
Fittings
Fittings & Transitions
Elbows at 90, 60, 45, and 30 degrees with a 1.5 x D centerline radius, plus branches, tees, wyes, concentric reducers, and square-to-round transitions.
Accessories
Blast Gates & Dampers
Manual blast gates, with automatic gates available from 36 in., plus volume control dampers and blind flanges to complete the system.
Finishes
Specialty Finishes
#2B standard, with #4, brushed, and electropolished finishes for food, pharmaceutical, and clean process work.
Why Industrial Ducting Systems
Why Source Sisneros Through IDS
Our preferred partnership with Sisneros Bros. means faster estimates, optimized solutions, and one team coordinating your stainless package.
Design & Take-Off
Quantity take-off and 2D CAD & 3D BIM support from your drawings.
Faster Estimates
Our relationship with Sisneros Bros. shortens the path from drawings to a priced package.
Procurement & Tracking
One point of contact for ordering and order tracking across your package.
Logistics & Delivery
Shipments coordinated to your schedule so duct arrives when the crew needs it.
Request a Sisneros Stainless Quote
Send drawings or a take-off and we'll coordinate pricing with Sisneros Bros.
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Applications
Where Sisneros Stainless Is Specified
Stainless ductwork is the standard wherever corrosion, cleanliness, or high temperatures rule out galvanized steel.