Custom Parts, Built to Your Specifications

Product Overview Shenzhen Sunmy Hardware Co., Ltd. (Est. 2016) delivers high-performance, customized hardware solutions designed to meet the rigorous demands of the global industrial sector. The components featured here represent our expertise in Investment Casting (Lost Wax Casting) combined with secondary CNC Machining. From complex mechanical links and gear shafts to precision fluid control fittings and brackets, our products are engineered for durability, corrosion resistance, and geometric complexity. We do not just sell off-the-shelf parts; we transform your engineering drawings into finished, inspection-ready components. Ideal Applications: Industrial Machinery, Automation Systems, Fluid/Valve Systems, and Heavy Equipment. Process & Manufacturing Insights At Sunmy, we utilize a hybrid manufacturing approach to ensure both cost-efficiency and high precision: Investment Casting (Lost Wax Process) This primary forming process allows us to create complex, near-net-shape geometries (as seen in the chain links and housing components in your images) that are difficult or expensive to achieve through machining alone. It ensures excellent surface finish and material integrity. Precision CNC Machining Post-casting, we utilize advanced CNC turning and milling centers to machine critical dimensions (bores, threads, and mating surfaces) to tight tolerances. Surface Finishing We offer various treatments ranging from standard bead blasting (matte finish) to mirror polishing and electropolishing, ensuring the parts meet both aesthetic and environmental resistance standards. Key Specifications Based on the provided specification sheet and visual analysis:ParameterSpecification DetailsMaterialStainless Steel (Series: 304, 316, 316L, 17-4PH)Manufacturing ProcessInvestment Casting (Silica Sol Process) + CNC MachiningDimensionsFully Customized (OEM/ODM based on client drawings)Surface TreatmentPolishing, Sandblasting, Passivation, or as per requestTolerance ClassCasting: ISO 8062 CT5-CT7; Machining: ISO 2768-m/fQuality StandardISO 9001 Certified System / 100% Dimensional InspectionOriginManufactured in China (Shanxi/Shenzhen operations)ApplicationIndustrial Machinery, Marine Hardware, Construction, Automotive Key Features & Benefits ◎ Complex Geometries: Our casting capability allows for undercuts, internal cavities, and complex contours (as seen in the connector and bracket samples) that reduce material waste compared to machining from solid block. ◎ Superior Durability: Made from high-grade stainless steel, our parts offer exceptional resistance to rust, oxidation, and mechanical wear, suitable for harsh operating environments. ◎ One-Stop Solution: From mold design and casting to machining and final polishing, Sunmy manages the entire lifecycle. This integrated approach reduces lead times and simplifies your supply chain. ◎ Verified Quality: Established in 2016, our mature quality control system includes material analysis (Spectrometer) and dimensional checks to ensure every batch meets your exact specifications.