Northern Manufacturing cuts tube, pipe, and structural shapes on a Trumpf TruLaser Tube 7000 at our Oak Harbor, Ohio facility. Round, square, rectangular, and special profiles from 0.6 to 10 inches in diameter, lengths to 20 feet, stock weights to 25 pounds per foot, and wall thickness to 5/16 inch on stainless. Copes, miters, slots, tabs, hole patterns, and etched layout lines cut in the same cycle, so parts come off the machine ready for fit-up instead of ready for layout.
ISO 9001:2015 certified by AVU Registrations (IAS-accredited, certificate #00157-4). Material Test Reports traced by heat number from raw stock through finished part. The tube laser runs alongside two flat lasers, a 5-axis 3D laser, 78 welding bays, and an in-house pickling and passivation booth, so a cut kit can move straight into welding and finishing without leaving the building.
Tube Laser Capacity
| Parameter | Capacity |
|---|---|
| Diameter | 0.6 in to 10 in |
| Length | Up to 20 ft |
| Wall thickness (stainless) | 3/16 in routine; 5/16 in maximum |
| Stock weight | Up to 25 lb per ft |
| Positional accuracy | ±0.005 in |
| Profiles | Round, square, rectangular, oval, structural angle and channel |
Hitting one of these limits does not end the conversation. Diameters above 10 inches, formed sections, and pre-welded assemblies route to our Prima Optimo 5-axis laser. Wall thickness beyond the tube laser’s range cuts off on the Hydmech S-23A saw. Sheet and plate parts for the same assembly nest on the flat lasers and ship with the tube kit.
Design Features That Replace Downstream Work
The cost case for tube laser cutting is not the cut. It is everything the cut eliminates. A sawed and drilled frame member needs layout, a drill press, deburring, and a fixture to hold it square during welding. A tube-lasered member arrives with its holes in position, its copes matched to the mating tube, and its tabs indexed to the slots in the next part.
Slot-and-tab joints carry the fixture inside the part. Tabs on one member drop into slots on the next, the frame squares itself, and the welder starts welding instead of measuring. On bracketed frames and equipment skids, that converts hours of fixture setup into minutes of assembly.
Copes and saddles fit the first time. Tube-to-tube intersections are cut to the mating profile, so fit-up gaps stay consistent around the full joint. Consistent gaps mean predictable weld quality; hand-ground copes mean neither.
Etch lines replace the tape measure. Weld locations, alignment marks, and part numbers etch into the surface during cutting. Operators downstream position parts off the marks, and traceability rides on the part itself.
Send the assembly model, not a stack of part drawings. Our 8-person engineering department works in SolidWorks and Inventor, quotes from STEP or native SolidWorks files, and reviews tube weldments for fabrication: where a two-piece weldment can become one coped part, where a tab replaces a fixture, where an etch line saves the welder a layout step.
Flat, Tube, or 3D: Matching the Part to the Laser
The tube laser is one of four cutting work centers at Northern. Quoting puts the part on the machine the geometry calls for, not the machine with open time.
| Part geometry | Machine | Capacity |
|---|---|---|
| Sheet and plate, nested flat parts | Trumpf TruLaser 3060 and TruLaser 5040 Fiber | Stainless to 1 in thick |
| Tube, pipe, and structural shapes | Trumpf TruLaser Tube 7000 | 0.6 to 10 in diameter, 20 ft, 5/16 in wall |
| Formed parts, large diameters, weld-prep bevels | Prima Optimo 5-axis laser | Diameters above 10 in, formed and welded sections |
| Heavy-wall cutoff | Hydmech S-23A saw | Wall thickness beyond laser range |
Flat work has its own page at stainless steel laser cutting, and the 5-axis machine is covered under 3D laser cutting. Parts move between machines under one routing, one quality system, and one purchase order.
From Cut Kit to Welded Assembly
Most tube laser services ship you a box of parts. Northern ships whatever the drawing calls for: a kitted set of cut members, a tacked subframe, or a finished welded assembly. Cut parts feed 78 welding bays and 60+ AWS-certified welders running stainless steel welding services under ASME BPVC Section IX qualified procedures, with stainless work running in our 40,000 sq ft stainless-only production space and carbon in separate bays.
Keeping the tube laser and the weld floor under one roof closes the loop that vendor-to-vendor handoffs leave open. When a fit-up gap reads wrong at the weld bench, the fix is a program revision the same day, not a dispute between your cutting vendor and your fabricator. Slot-and-tab geometry, cope profiles, and tab clearances get tuned against what our own welders see at the bench.
Corrosion-critical assemblies finish with stainless steel pickling and passivation to ASTM A380 and A967 in our 55-foot spray booth, restoring the passive layer that welding heat and handling disturb.
Traceability and Quality
Tube and structural stock carries its identity through the shop. Material Test Reports are traced by heat number from receiving through the finished part, and etched part marking keeps the paper trail attached to the metal. Positive Material Identification (PMI) verifies alloy grade on critical-service work before cutting starts, which matters when 304 and 316L look identical on the rack.
The quality system behind the machine is the same one that runs the rest of the shop: ISO 9001:2015 certified by AVU Registrations (certificate #00157-4), an AWS Certified Welding Inspector on staff, ASNT SNT-TC-1A Level III NDE capability in-house, and 3D-scan inspection for dimensional verification on assemblies where the drawing demands proof, not promises.