Overview

The Ningbo Dimon Hydraulic 3D Adjustable Concealed Invisible Door Hinge is a cutting-edge architectural door system that seamlessly merges a 100% hidden mortise hinge with an internal hydraulic automatic door closer. Specifically engineered for luxury minimalist interiors, secret flush doors, frameless jamb designs, and modern residential and commercial entryways, this innovative hinge completely eliminates the need for bulky overhead surface-mounted door closer arms, overhead tracks, or floor springs. Fully embedded into the door edge and frame, it closes the door automatically with a smooth, cushioned hydraulic buffer while offering precision 3-way 3D adjustability after installation.

Key Features

• 2-in-1 Concealed Hinge & Hydraulic Closer: Combines completely invisible architectural styling with smooth automatic self-closing, maintaining pristine wall and door aesthetics.
• Soft-Close Hydraulic Buffer & Speed Control: Integrated high-precision hydraulic cylinder decelerates the door leaf in the final closing arc, pulling it shut silently and gently without slamming. Adjustable dual-speed control (+/- valves) allows customized closing and latching speeds.
• Independent 3D Micro-Adjustability: Easily fine-tune door gap alignment after hanging using standard hex keys:
  • Vertical (Height) Adjustment: ±4.0 mm
  • Horizontal (Lateral) Adjustment: ±2.0 mm
  • Depth (In/Out) Adjustment: ±1.5 mm
• High Load Capacity: Available in 177×28mm (rated for 30 kg / 66 lbs per pair) and 190×30mm / 194×30mm (rated for 40 kg / 88 lbs per pair); multi-hinge installations support heavy solid wood doors up to 80 kg (176 lbs).
• Heavy-Duty Zinc Alloy & Steel Linkages: Precision die-cast high-density zinc alloy housing with hardened multi-pivot scissor arms withstands hundreds of thousands of cycles without sagging.
• Architectural Finishes: Finished with high-durability electrostatic coatings in Matte Black (Yahei), Satin Silver, Gunmetal Gray, and Titanium Gold, complete with magnetic or snap-on screw covers.

Technical Specifications

• Product Type: Hydraulic Concealed Self-Closing Hinge (3D Adjustable Invisible Hinge)
• Material: High-Strength Die-Cast Zinc Alloy Body with Hydraulic Dampening Cylinder
• Available Mortise Dimensions:
  • 177 mm × 28 mm (Load Capacity: 30 kg per set)
  • 190 mm × 30 mm / 194 mm × 30 mm (Load Capacity: 40 kg per set)
• Minimum Door Thickness: 40 mm – 55 mm (approx. 1-1/2" to 2-1/8")
• Maximum Door Opening Angle: 100° to 120° (automatic self-closing range from approx. 85° to 0°)
• Adjustability: 3-Dimensional (Vertical ±4mm, Lateral ±2mm, Depth ±1.5mm)
• Finishes: Matte Black, Satin Silver, Gunmetal Gray, Titanium Gold
• Package Configuration: Hydraulic active hinge paired with companion load-bearing dummy hinge, protective installation tags, and stainless steel fasteners

Wholesale & OEM Capabilities

• CNC Routing Templates: Accurate 1:1 paper templates and CAD/DXF routing drawings available for automated door factory production.
• Companion Load-Bearing Hinges: Balanced sets matching hydraulic closer hinges with passive bearing hinges to support extra-tall or oversized door panels.
• Custom Finishes: PVD Brushed Brass, Satin Nickel, and Architectural Bronze for commercial specifications.
• Export Packaging: Foam-cushioned individual boxes with installation instructions, packed in heavy-duty export master cartons.
• Direct B2B Supply: Factory-direct wholesale pricing from Ningbo Dimon, strict QA/QC testing, flexible MOQs, and worldwide container/air freight shipping.