CNC Machined Two-Color Anodized End Cap

As a critical sealing and fastening component for rotating equipment or fluid systems, this disc-shaped part achieves axial positioning of internal rotors or valve cores and rigid connection to external pipelines through the coordination of its central shaft hole and peripheral mounting lugs. The part features a distinctive two-tone design, with a red outer ring contrasting sharply against the black body. This aesthetic is typically used to differentiate functional zones or meet specific brand identity requirements, while retaining precision mechanical features such as flange faces, countersunk holes, and internal reinforcing ribs.

The core of the machining process lies in controlling the positional consistency between the central large hole and the peripheral mounting hole pattern. This ensures uniform bolt loading during high-speed operation or high-pressure conditions, preventing seal failure or vibration noise caused by eccentricity. The complex hollow rib design on the inner wall imposes high demands on toolpath planning, requiring multi-axis linkage or multiple clamping strategies to guarantee inner cavity profile accuracy. For surface treatment, the two-color anodizing process requires strict control over masking and dyeing procedures to ensure clear color boundaries without bleeding, while meeting wear resistance and corrosion protection standards for coating hardness.

Leveraging our factory's existing high-precision vertical machining centers and slow-feed wire EDM equipment, we effectively handle the manufacturing of such precision structural parts with complex internal cavities and appearance requirements. For substrates like aluminum, we provide a one-stop solution from rough and finish machining to two-color surface treatment. We utilize Hexagon CMMs for full-dimensional inspection of key locating surfaces and hole diameters. Please provide 2D/3D drawings with complete tolerance annotations and assembly relationships so we can evaluate the specific machining process and provide an accurate quote.