CNC Machining Exporter & Factories

On critical 5-axis milled geometries and high-speed Swiss-turned diameters, we consistently hold tolerances to ±0.005 mm (±0.0002 in). Standard precision features are routinely machined to ±0.01 mm. Achievable tolerance is dictated by raw stock material stability (e.g., Delrin vs. PEEK vs. AL7075), unsupported wall thickness, and cutter engagement depth. Every tolerance boundary is fully qualified during our upfront 24-hour DFM engineering review prior to tooling commitment.

Type III Hardcoat anodizing typically penetrates 25 μm into the aluminum substrate and builds up 25 μm on the surface (total layer 50 μm), while electroless nickel plating deposits a uniform 5 to 15 μm film. Our CAM programmers calculate these specific dimensional offsets directly into the toolpath trajectories. Critical bearing bores and tight internal threads (e.g., M3 to M10) are either masked with silicone plugs/liquid masks or precision reamed post-coating to ensure nominal drawing dimensions are met.

Our standard export compliance package includes: (1) Raw Material Mill Test Certificates (MTR) confirming chemical composition and mechanical properties; (2) Full CMM Inspection Reports documenting ballooned drawing dimensions; (3) First Article Inspection (FAI) reports conforming to AS9102 principles; (4) RoHS and REACH substance compliance declarations; and (5) Plating/Anodizing thickness and salt-spray test certificates where designated.

We execute formal, legally enforceable Non-Disclosure Agreements (NDAs) prior to receiving your 3D CAD models (STEP, IGES, Parasolid) or 2D technical prints. Furthermore, overseas customers interface directly with our Shenzhen engineering and technical sales teams. Because no domestic trading brokers or unvetted third parties are inserted into the communication loop, your proprietary engineering IP remains strictly contained within our audited engineering servers.

Yes. Sunmy Hardware was specifically established to bridge the gap between rapid R&D turnaround and high-volume contract manufacturing. We support 1-to-20 piece prototype runs utilizing CNC milling, turning, SLA/SLS additive printing, and silicone urethane tooling. Once the design is frozen, our engineers transition the component into automated multi-axis CNC setups, aluminum/zinc die casting, or progressive die metal stamping, preserving dimensional continuity across the product lifecycle.