OEM Furniture Hardware Manufacturing Manufacturers & Product

Critical CNC-milled and precision-turned features can be held down to ±0.005 mm, with ±0.01 mm standard on precision features. For die-cast zinc and aluminum components, we maintain as-cast tolerances within ±0.05 mm to ±0.1 mm, followed by secondary CNC machining for pivot pins, bearing bores, and mounting interfaces to guarantee smooth mechanism kinematics.

CNC machining (3-axis, 4-axis, and 5-axis) and progressive metal stamping are performed directly in Sunmy-owned facilities. High-pressure die casting and surface finishing are handled by audited partner plants. All incoming material verification, dimensional CMM inspections, First Article Inspections (FAI), and packaging quality audits are managed directly by our in-house engineering team.

We sign formal bilateral Non-Disclosure Agreements (NDAs) with client engineering teams prior to receiving any 2D drawings, 3D STEP files, or samples. Overseas engineering buyers work directly with our engineering personnel—ensuring design data is never shared with third-party trading intermediaries.

Standard documentation includes Raw Material Mill Test Certificates (spectrometric chemical composition and mechanical properties), First Article Inspection (FAI) reports, CMM dimensional measurement reports, and salt spray corrosion test certificates. RoHS and REACH declarations are provided based on destination market requirements.

Yes. We specialize in low-volume prototype builds through CNC machining, urethane casting, and 3D printing to validate mechanical kinematics, BIFMA load ratings, and assembly clearances. Once the design is proven, our engineers run Moldflow and stamping simulations before cutting mass production dies.