Adjustable concealed door hinges (3D adjustable concealed hinges) feature a zinc alloy body, having passed the EN 1395 standard's 200,000 opening/closing cycle test and achieved EN 1634-1 fire resistance certification for 132 minutes. They combine high strength and durability with fire safety performance. Their core advantage lies in three-dimensional adjustment capabilities, enabling precise fine-tuning of vertical, horizontal, and depth deviations in door panels. This ensures long-term stability without sagging. The concealed design facilitates seamless installation and compatibility with diverse door types, representing a premium door control solution for those prioritising safety, durability, and aesthetics. For further information, please contact us.
Product Overview
| Product name | EN1935 3D Adjustable Concealed Door Hinges Fire Rated Hidden Hinge |
| Product Model | DDCH008-G40 |
| Certification | EN1935 200,00 cycles test, EN1634 fire rated 132mins |
| Material | Zinc Alloy |
| Finish | Silver Painted , Black Painted , Golden Painted |
| Color | Silver, Black, Golden |
| Suitable for | Wooden Door, Metal Door, Steel Door, Interior Door, Outer Door ,Folding Door etc. |
Packaging & Shipping
| MOQ | 500 Pieces |
| Package | One pair/white box or color box or Blister card in Standard export carton |
| Sample time | 5-7 working days |
| Production lead time | 30-35 days |
| Shipping Port | Jiangmen , China / Shenzhen , China . |
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Product Features
1. Three-dimensional adjustment for precise adaptation
Adjustable concealed door hinges support independent adjustment in three dimensions: vertical (up/down), horizontal (left/right), and depth (front/back). With an adjustment range of ±2mm, they swiftly rectify issues of poor door closure caused by uneven walls or installation inaccuracies. Adjustments require no door disassembly, being completed solely via internal screws. This proves particularly advantageous for renovation projects or scenarios demanding high precision, significantly lowering installation barriers and time expenditure.
2. 200,000-cycle durability, lasting like new
The product passed the EN 1395 standard's 200,000 opening/closing cycle test, simulating high-frequency usage scenarios (e.g., 300 daily cycles in commercial settings) while maintaining smooth, snag-free rotation. The zinc alloy body, precision die-cast with anti-corrosion surface treatment, offers robust impact resistance. Suitable for prolonged use in humid environments or coastal regions, its lifespan far exceeds the standard 80,000-100,000 cycles of ordinary hinges, reducing maintenance frequency.
3. 132-Minute Fire Resistance for Safety Assurance
Compliant with EN 1634-1 fire resistance testing standards, the hinge structure remains intact without deformation after 132 minutes of exposure to high-temperature flames and thermal radiation, ensuring fire doors maintain their barrier function during fires. The concealed design eliminates the risk of exposed metal components softening and detaching under extreme heat, buying critical time for evacuation and firefighting operations. Ideal for fire-critical environments such as hospitals, schools, and shopping centres.
4. Concealed Aesthetics, Seamless Integration
3D adjustable concealed hinges employ an embedded installation. When the door leaf closes, the hinges are entirely concealed within the door frame, leaving only an extremely narrow gap of 1-2mm. This creates a visually minimalist effect, appearing as if there are no hardware fittings. Compared to exposed hinges, this design avoids visible screws and metal components that compromise the door's integrity. It complements modern minimalist and wabi-sabi aesthetics, elevating the sophistication of any space.
5. Universal Compatibility, Flexible Installation
Compatible with timber, steel, and fire-rated doors, accommodating left/right and inward/outward opening configurations. Suitable for door thicknesses ranging from 35-55mm. Installation requires no custom door frames, fitting within standard pre-embedded slots to reduce production and inventory costs. The modular adjustment mechanism allows for individual component replacement when damaged, extending the product's lifecycle value.
Suitable Applications
Adjustable concealed door hinges are ideal for the following scenarios:
*High-traffic commercial spaces: such as shopping centres, office buildings, and hotels, requiring frequent operation and durability;
*Public buildings with stringent fire safety requirements: hospitals, schools, airports, necessitating compliance with fire resistance timings and structural stability;
*Humid or corrosive environments: coastal regions, laboratories, industrial facilities, where zinc alloy's corrosion resistance excels;
Premium residences and minimalist design: bespoke home renovation projects prioritising concealed aesthetics and precise adjustment.
The Stainless Steel Euro Door Hinge that we offer are tested to the most stringent international industry standards, including BS EN, CE, UL, ANSI and BHMA, Suitable for Education, Healthcare, Hospitality, Residential and Commercial applications.
More door hardware items include:
1.Door Hinge- UL 10C R38013 & BHMA/ANSI Grade1/2 & CE EN1935 Grade 13
2.Concealed Hinge- BS EN1935, EN1634 Fire Rated
3.Door Lock - CE EN12209 UKCA Fire Rated & UL 10C R40901
4. Door Handle- BS EN 1906 Grade 4, EN1634 Fire Rated
5. Panic Exit Device- UL 10C R40486 & UL305 SA45817 & CE EN1125
6. Door Closer – CE BS EN 1154 & UL 10C R40717
7. Lock Cylinder-BS EN1303, EN1634 Fire Rated
8. Door Viewer - UL Listed UL 10C Fire Rated R41286
9. Glass Hardware / Bathroom Hardware / Barn Door Hardware
Contact:
David Jian
Mobile:0086-139 2903 7292ADD: 12th Floor, Building 2, No.898, KeChuang Technical Zone, Jiangmen Avenue, Pengjiang District, Jiangmen City, Guangdong, China (Postcode:529000)
Https://www.danddhardware.com