Concealed Hinges

3D concealed hinges have various types of load capacity, finishes, and styles. The hinges can be adjusted in three dimensions, and the sturdy material and structure can withstand high weights. Commercial, wholesale, real estate, and engineering use. OEM/ODM.

Product Series

sunshine hardware

FAQ

What exactly is a "3D Concealed Hinge," and how is it different from a standard concealed hinge?

A 3D Concealed Hinge (often called a fully adjustable hinge) is the premium category of cup hinges. The "3D" refers to its ability to adjust the door panel in three independent planes after installation:

  • Depth Adjustment (In/Out): Compensates for door panel thickness variations or ensures the door sits flush with the cabinet frame.
  • Height Adjustment (Up/Down): Corrects minor discrepancies in the drilling position of the cup hole.
  • Side/Lateral Adjustment (Left/Right): Fine-tunes the gap between doors for a perfectly even reveal.

A standard concealed hinge typically only offers 2D adjustment (height and depth, or side-to-side and depth). The 3D version provides ultimate installation flexibility and precision, essential for flawless mass production and high-end custom work.

What are the main benefits of using 3D concealed hinges in production?

The key benefits are precision, efficiency, and durability:

  • Perfect Alignment: Compensates for cumulative tolerances in cabinet boxes and door panels, ensuring consistent, professional-looking gaps.
  • Faster Installation & Corrections: Installers can quickly fine-tune doors on-site without remounting the hinge base, saving significant labor time and reducing callbacks.
  • Integrated Soft-Close: Most 3D hinges include a hydraulic or mechanical soft-close mechanism, ensuring doors close quietly and gently every time—a must-have for modern residential and commercial furniture.
  • Superior Weight Capacity & Longevity: Engineered for heavier doors and high-frequency use, with robust steel construction and high-cycle testing.

What finishes are available?

  • Standard Finishes: Nickel (Satin & Polished), Black, Dark Bronze. These are applied via electroplating or PVD coating for superior scratch and corrosion resistance.
  • Custom Finishes: For large-volume projects (OEM/ODM), we offer custom PVD colors (e.g., Matte Black, Brushed Gold, Chrome) to match your hardware exactly.

How is quality controlled?

Our hinges undergo strict quality checks:

  • Cycle Testing: Hinges are tested to exceed 80,000 to 100,000 open/close cycles.
  • Salt Spray Test: Finishes are tested for 96 hours of corrosion resistance.

What are your packaging and minimum order terms?

 We cater to both small studios and large manufacturers:

  • Packaging: Standard is a white regular package for cost-efficiency.
  • MOQ (Minimum Order Quantity): Relatively 300 for standard items. For custom finishes or packaging, a higher MOQ applies. Contact us for specific terms.
  • Samples: We provide functional samples for testing and approval before full production runs.