STAINLESS STEEL LASER CUTTING & FORMING – MULTI-PART KITS, MULTI-BEND PARTS, HELD TO ±0.2mm
Ultima Metals runs recurring stainless steel kit programs for manufacturers in transportation, aerospace, and industrial applications. From 20-gauge sheet to 0.190″ plate, in 304 and 316 — we cut, form, and deliver complete multi-part kits, including
formed pans, tanks, channels, clamps, and brackets that hold tight tolerances even through complex bend sequences.
The Stainless Work We’re Built For
Our strongest stainless customers don’t send us single parts. They send us complete kits — 25, 50, or 100+ distinct components per order, all designed to fit together in a finished assembly. Tanks, pans, custom channels, clamps, mounting brackets, structural panels — all cut and formed in our shop, all delivered together, all running on a recurring cadence.
This is the work we’ve optimized our shop around. Multi-part stainless kits where every component has to fit the assembly correctly, where the order needs to ship complete, and where the customer trusts us enough to hand over a full BOM rather than coordinate multiple vendors.
If your shop runs stainless programs that look like this — recurring kits in mid-volume quantities, where consistency and complete kit delivery matter more than chasing the lowest per-part quote — we should talk.
Where Most Stainless Shops Start Losing Tolerance — We Don’t
Most stainless laser cuts come out of the machine accurate. The challenge starts at the press brake. Every additional bend on a part compounds dimensional variation — a 5-bend bracket can drift 0.5mm or more from print if the shop isn’t disciplined about setup, tooling, and bend sequence. By the time the part lands in your assembly, the holes don’t line up, the box doesn’t square, the panel doesn’t seat.
We hold ±0.2mm on critical features across multi-bend stainless parts — including formed box geometry on pans and tanks, where three, four, or five bends in close proximity can easily push tolerance out of spec at less disciplined shops. That tolerance isn’t a marketing claim. It’s what our recurring customers measure us against every order, and it’s why they keep ordering.
This level of forming precision in stainless requires three things working together: dialed-in tooling for the specific material and thickness, a bend sequence engineered to minimize compounding error, and an operator who understands how 304 and 316 behave under press brake forming differently than carbon steel. We’ve built our shop around that combination.
What a Real Stainless Kit Program Looks Like
One of our largest customers runs recurring multi-part stainless kit programs through our shop on a regular cadence. The kits include formed pans, fluid tanks with multi-bend box geometry, custom-profile channels, mounting clamps, and a range of bracket families — all in 304 and 316 stainless, with material thicknesses spanning 20-gauge sheet up to 0.190″ plate.
Many of these parts are visible on the finished assembly, which means the cut edges and formed surfaces have to look clean — not just function correctly. Multi-bend tolerance has to hold within ±0.2mm so the parts assemble cleanly without rework. And the entire kit has to ship complete on the committed date, every cycle, so the customer’s downstream production schedule stays on track.
We’ve been running this program long enough now that the second and third orders in any cycle run faster than the first — the setup is dialed, the tooling is staged, and the parts flow through the shop with predictable lead times. This is what a working laser-and-forming partnership looks like, and it’s the model we want to build more of.
Why We Stay Focused on 304 and 316
Most of our stainless work runs in 304 and 316. These two grades cover the overwhelming majority of structural, formed, and corrosion-resistant stainless applications in transportation, aerospace, industrial equipment, and food-grade environments.
- 304 stainless — the workhorse. Excellent corrosion resistance, formability, and weldability. We run it in everything from 20-gauge sheet for panels and enclosures up to 0.190″ plate for structural components.
- 316 stainless — when chloride exposure, harsh chemical environments, or marine-adjacent conditions are in play. Slightly tougher to form than 304, but we’ve dialed in the parameters specifically for it.
If you need a different stainless grade for a specific program — 321, 17-4, duplex — talk to us. We can quote it, but we’ll be honest about whether it’s in our wheelhouse or whether you’d be better served by a specialist.
Stainless Cutting and Forming Capacity
FLAT LASER CUTTING:
- Sheet size: up to 5′ x 10′
- Thickness range: 20-gauge to 0.190″ (commonly run); thinner and slightly thicker handled case by case
- Grades: 304, 316 (primary); other grades by request
- Assist gas: nitrogen for clean, oxide-free, weld-ready edges
TUBE LASER CUTTING:
- Capability available for stainless round, square, and rectangular tube up to 4.5″ diameter
- Run on a project basis — talk to us about your specific tube program
CNC PRESS BRAKE FORMING:
- Multi-bend parts including formed box geometry (pans, tanks, channels)
- Tolerance: ±0.2mm on critical features across multi-bend sequences
- Tooling staged for repeat programs to keep setup time predictable on recurring orders
The Buyers This Page Is For
Our stainless customers typically include:
- Manufacturers in transportation industries needing recurring multi-part kits in 304 and 316
- Aerospace-adjacent fabricators who outsource stainless components as part of larger assemblies
- Industrial equipment OEMs running stainless programs for enclosures, tanks, brackets, and structural components
- Welding shops and specialty fabricators who need a reliable stainless cut-and-form sub for their own customer programs
- Any specialty manufacturer running mid-volume recurring stainless programs (typically 10 to 5,000 parts per order or kit)
If your shop runs stainless programs that match this profile, we’d like to talk about your work.
When Stainless Has to Look as Good as It Functions
Many stainless parts end up visible on the finished product — exposed panels, sanitary surfaces, exterior brackets, fluid tanks where the customer sees every weld bead and bend radius. That visibility means cut quality and forming finish matter as much as dimensional accuracy.
We cut all stainless with nitrogen assist gas, which produces clean, oxide-free edges that don’t require post-cut grinding or polishing for most applications. Our forming process is calibrated to minimize witness marks on visible surfaces — meaning your finished parts come off our press brake looking the way you want them to look on the assembly.
If your program has specific visible-finish requirements — mirror polish surfaces, brushed finishes, scratch-sensitive handling — let us know up front so we can plan the work appropriately.
Send Us a File or a Full Kit BOM
The simplest way to start is by sending us files for one of your existing stainless programs — a kit you’re already running with another vendor, or a new program you’re about to launch. We’ll review the files, flag anything that might cause issues downstream, and quote the first run honestly.
If we’re a fit, we’ll grow into a steady-state program with you. If we’re not, you’ll have learned something useful about how we work — and that’s worth a quote on its own.
Upload your files at ultimametals.com/request-a-quote or call us directly at (951) 676-4006.