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Large stainless steel equipment assembly spanning the floor of the Northern Manufacturing fabrication facility

Fabrication Capabilities

ISO 9001:2015 · AWS D1.6 · ASME BPVC Section IX qualified. Laser cutting to pickling and passivation under one roof in Oak Harbor, Ohio.

Cutting & Forming

Flat, tube, and 5-axis laser cutting on stainless and specialty alloys, programmed from your CAD.

Stainless steel assemblies fabricated from cut plate components staged on racks at Northern Manufacturing

Stainless Steel Laser Cutting Services

A 12 kW Trumpf fiber laser cuts stainless sheet and plate up to 1.25 inches thick, a 3,200 W CO2 cell runs production sheet behind it, and an 8-person engineering team programs every nest from your CAD.

Fiber laser cutting system with automated sheet-loading tower in the Northern Manufacturing laser cutting bay

Tube Laser Cutting Services

A Trumpf TruLaser Tube 7000 cuts round, square, rectangular, and structural shapes from 0.6 to 10 inches in diameter and up to 20 feet long, with copes, slots, tabs, and hole patterns finished in the same cutting cycle.

Large formed stainless steel hopper cones staged on pallets outside the Northern Manufacturing facility

3D Laser Cutting Services

A Prima Optimo 5-axis laser cuts bolt holes, ports, bevels, and trim lines into formed and welded parts up to 150 by 80 inches, at 0.005 inch accuracy, after weld shrinkage has already happened.

Operator forming a stainless steel bracket on a CNC press brake at Northern Manufacturing, with laser-cut blanks staged beside the dies

Precision Bending and Forming Services

Five CNC press brakes, two Trumpf TruBend 5320s among them, form stainless from sheet gauges through heavy plate, with springback compensation set per grade and formed dimensions verified against your CAD model before parts move to welding.

Welding & Fabrication

60+ AWS-certified welders running ASME BPVC Section IX qualified procedures on stainless, duplex, and nickel alloys.

Northern Manufacturing welder in PPE tacking a tube sheet into a large stainless vessel on the shop floor

Stainless Steel Welding Services

60+ AWS-certified welders running ASME BPVC Section IX qualified procedures across nine processes (GTAW, GMAW, FCAW, SAW, robotic, K-TIG, and more) on stainless, duplex, and nickel alloys most shops won’t touch.

Long multi-section stainless steel enclosure fit up end to end on the Northern Manufacturing shop floor

Laser Welding Services

Laser welding puts a narrow, full-penetration seam on thin stainless with a fraction of the heat an arc process leaves behind. Less distortion, less straightening rework, and sheet assemblies that arrive at finishing flat.

Identical stainless steel tubular arm weldments with drilled clevis end plates stacked on wood blocking outside Northern Manufacturing

Robotic Welding Services

Robotic GTAW and GMAW cells with laser vision seam tracking, multi-fixture setups, and family-of-parts programming: weld automation built for a job shop, where batches are small and parts change weekly.

Welded stainless steel pipe headers and rake assemblies staged on pallets after fabrication at Northern Manufacturing

Stainless Steel Pipe Fabrication

Pipe spools cut on a tube laser to 10 inches in diameter, welded root to cap under ASME BPVC Section IX qualified procedures, and verified by in-house NDE before the package leaves Oak Harbor, Ohio.

Fabricated Products

Custom stainless tanks rolled in-house and laser-cut, robotic-welded stainless beams, girders, and structural profiles.

Rolled stainless steel cylindrical tanks on tubular legs staged outside Northern Manufacturing

Custom Stainless Steel Tanks

Tank shells rolled in one piece to remove longitudinal seams, welded by 60+ AWS-certified welders under ASME BPVC Section IX qualified procedures, then pickled and passivated to ASTM A380 and A967 in our 55-foot booth before shipment.

Identical robotically welded stainless steel tubular weldments with drilled clevis end plates stacked on wood blocking outside Northern Manufacturing

Custom Stainless Steel Beam Fabrication

When no mill rolls the stainless section your design calls for, we build it: web and flanges laser cut from plate on a 12 kW fiber laser, then stitch welded straight in robotic cells with laser vision seam tracking.

Finishing & Assembly

In-house ASTM A380 pickling and ASTM A967 passivation in a 55 x 20 x 20 ft spray booth, copper-sulfate verified.

Technician inspecting a large stainless steel fabrication before pickling and passivation at Northern Manufacturing

Stainless Steel Pickling and Passivation

Welding leaves stainless with heat tint, free iron, and a chromium-depleted layer that fails service life if it ships out the door. We pickle and passivate to ASTM A380 and A967 in a 55 ft booth, then verify with copper-sulfate before the part leaves Oak Harbor.

Large stepped stainless steel hopper assembly staged under an overhead crane inside the Northern Manufacturing fabrication facility

Stainless Steel Bead Blasting Services

Bead blasting gives stainless a uniform, non-directional matte finish that hides handling marks and leaves the surface in compression, run on dedicated stainless equipment with ASTM A380 pickling available under the same roof.

Assembled stainless steel rotary drum unit with drive motor staged under an overhead crane while Northern Manufacturing craftsmen look it over

Mechanical Assembly Services

Our craftsmen carry your fabrication past the weld floor: shafts, bearings, drives, pneumatics, and customer hardware installed in dedicated assembly bays and verified under the same ISO 9001:2015 system that built the parts.

Multi-section stainless steel trough assembly fit up end to end on the Northern Manufacturing shop floor

Trial Fit and Functional Testing

Before your fabrication ships, we assemble it on our floor, verify it against your CAD model with a Leica AT960 laser tracker, and exercise the moving parts, so a fit problem costs hours in the shop instead of days in the field.

Send us a drawing. We'll tell you what it takes.