Aluminum Alloy Multi-Hole Adjustable Linkage

This two-tone metal assembly features a four-hole layout and an ergonomic wavy handle, commonly used in mechanical equipment for fine angle adjustment, position locking, or manual operation mechanisms. The silver body is elongated with four equidistant round holes for multi-position selection or transmission connection. The black handle is designed with ergonomic wavy edges and a mounting hole at the end, facilitating grip leverage or pin-axis fixation to the base.

These components are typically manufactured using aluminum alloy die-casting combined with precision CNC machining. Key quality controls include strict tolerance management of the four-hole spacing and concentricity relative to the pivot center, ensuring precise positioning and consistent operational feel during adjustment. The hinged connection between the two parts is engineered to provide appropriate damping and smooth rotation, avoiding excessive tightness that causes operational difficulty or looseness that leads to晃动 (wobble) and noise. For surface treatment, the silver part usually undergoes sandblasting and anodizing to enhance wear resistance and aesthetics, while the black part typically receives electrophoresis or baking paint finishes to improve corrosion resistance and visual texture.

Leveraging our expertise in zinc-aluminum alloy die-casting and CNC post-processing, and holding IATF16949 quality system certification, we offer one-stop services from mold development and die-casting to precision machining and surface treatment. Equipped with Zeiss CMM inspection equipment, we perform rigorous 100% inspection on hole position, diameter tolerances, and assembly gaps to ensure dimensional stability for bulk deliveries. We support non-standard customization based on 3D models or 2D drawings, catering to diverse needs from small-batch prototyping to large-scale mass production.