Square Hollow Housing with Machined Enclosure Frame and Corner Flanges, Countersunk Holes

When the corner flanges on a machined enclosure frame are not coplanar with each other, the frame does not sit flat on its mounting surface and countersunk fasteners in the lower flanges are loaded in bending rather than shear; corner flange coplanarity is the callout that determines whether the enclosure frame distributes fastener load correctly and remains distortion-free after tightening. Suzhou Dingqian Energy Industry (Suzhou, Jiangsu, established 2018) CNC-mills this aluminium machined enclosure frame with square hollow housing, corner flanges, and countersunk holes using 5-axis milling and boring & milling machining at their in the region of 8,000 m² Suzhou facility, with corner flange coplanarity, countersink depth, and housing squareness confirmed per your drawing during in-process inspection. ISO 9001 certification covers aerospace, energy storage, military, and general industry machined enclosure frame applications. To quote, we need your drawing showing frame dimensions, flange profile, countersink specification, and aluminium grade to request pricing from our Suzhou facility, serving automotive, medical equipment, and robotics applications.