CNC Precision Machined Dual-Hole Metal Module

This rectangular block features large-diameter through-holes on both sides and counterbored mounting positions on the top. It is commonly used as a guide support seat, bearing housing, or fluid connection base in automation equipment. The main body is machined from solid metal billets using multi-axis milling. The clear machining marks on the inner walls of the side holes indicate precision boring or internal cylindrical grinding, ensuring high concentricity for fitted components such as bearings, bushings, or pipe fittings. The stepped hole array on the top provides flexible options for threaded connections or locating pin installation.

The core of manufacturing this part lies in maintaining unified datums and geometric tolerances across multiple machining setups. Special attention is paid to the positional tolerance of the side holes relative to external reference surfaces and the coaxiality of the hole system to prevent jamming or leakage after assembly. For the thick-walled features and deep cavity structures shown, cutting allowances are carefully distributed to suppress stress deformation caused by material removal. We utilize vertical machining centers and Coordinate Measuring Machines (CMM) to strictly control dimensional accuracy and flatness of key mating surfaces.

Leveraging our Dongguan facility's expertise in precision machining of titanium alloys, aluminum alloys, and stainless steel, we offer full-cycle services from single-piece prototyping to small and medium batch delivery. Buyers need to provide 2D/3D drawings specifying material grades, key fitting tolerances, and surface treatment requirements (such as anodizing, passivation, or sandblasting). We evaluate costs and lead times based on drawing complexity, material utilization, and inspection standards, supporting custom development from drawings.