Flange Plate CNC Machining at AOOM

Flanges are everywhere in industrial systems. They connect pipes, seal pressure vessels, and mount equipment. A bad flange means leaks, downtime, and safety risks. That's why we machine them with care.

We use 5-axis CNC machines to achieve tolerances at ±0.01 mm. Flatness on sealing surfaces is critical. Our toolpaths are optimized to maintain parallelism across the entire face.

Our Flange Machining Workflow

Material: Carbon steel, stainless steel, or aluminum alloys. We source certified material with full traceability.

Programming: CAM engineers optimize toolpaths for hole patterns, bolt circles, and sealing grooves.

Machining: Precision milling, drilling, and tapping. We do back-facing operations in the same setup to guarantee perpendicularity.

Finishing: Anodizing, powder coating, or passivation depending on the application.

Inspection: 100% dimensional check with CMM. Bolt hole positions verified within 0.05 mm of true position.

A pipeline client needed ANSI-class flanges in 316 stainless. The sealing surface had to be flat within 0.02 mm. We machined 50 units and every one passed their hydrostatic test.

Turnaround and Support

Prototypes ship in 3 to 5 days. Production runs scale without quality loss. Our engineering team supports from design review through final assembly.

We've been machining flanges for 15 years. It's a core capability, and we do it well.

Send your CAD files to chen@aoomtech.com for a quote within 24 hours.