Technical Specifications
1. Product Dimensions and Load Capacity
Product dimensions are 34x246mm, specifically engineered for heavy-duty doors. Each hinge supports up to 120kg, making it one of the highest load-bearing concealed hinges currently available. Its precision-engineered mechanical structure ensures even weight distribution, preventing localised stress concentration, and is suitable for various oversized door types.
2. Materials and Construction
The hinge body is cast from high-strength zinc alloy with a tensile strength exceeding 400MPa. Connecting plates utilise aerospace-grade aluminium alloy subjected to specialised heat treatment. A 316 stainless steel cover plate provides additional protection and decorative finish. All materials undergo rigorous quality inspection.
3. Certifications and Finishes
Certified to EN1935 Grade 13, having completed 200,000 cycle tests. EN1634 certification delivers 132 minutes of fire protection. EN1670 Class 5 corrosion resistance certification ensures product longevity. The professional design features a matte black body with silver cover plates, combining aesthetics with functionality.
Product Features and Advantages
1. Exceptional Load-bearing Capacity
This 3D Heavy Duty Hidden Hinge employs a unique mechanical structure design, with each hinge supporting up to 120kg – significantly exceeding comparable products. Its multi-point support system ensures even weight distribution, making it particularly suitable for heavy-duty fire doors and specialised doors.
2. 180-Degree Wide Opening Angle
The innovative 180-degree opening design provides greater passage space, ideal for locations requiring access for large equipment. A precision bearing system ensures smooth operation, even when fully loaded.
3. Precise Three-Dimensional Adjustment
An advanced three-dimensional adjustment system allows vertical adjustment of ±3mm, horizontal adjustment of ±2mm, and depth adjustment of ±2.5mm. With adjustment precision reaching 0.05mm, it ensures perfect alignment of the door leaf.
4. Exceptional Fire Resistance
Certified to EN1634 with a 132-minute fire resistance rating, featuring an integrated dual-layer fire seal system. Maintains structural integrity in high-temperature environments, providing maximum time for personnel evacuation.
5. Superior Corrosion Resistance
Certified to the highest EN1670 corrosion resistance standard, with zero corrosion observed after 96 hours of salt spray testing. Special surface treatment ensures long-term durability in extreme environments.
6. Extended Service Life
Certified to EN1935 with 200,000 cycle testing, equivalent to over 30 years of daily use. Features a permanent lubrication system for genuinely maintenance-free operation.
7. Simplified Installation Design
Equipped with a dedicated positioning system and adjustment tools, installation time is reduced by 40% compared to traditional products. The unique snap-fit design further streamlines installation.
Installation and Usage Guide
1. Pre-Installation Preparation
Use the dedicated template for precise positioning to ensure accurate slot locations. Control slot depth to 15.5mm ± 0.1mm, employing CNC equipment to guarantee machining accuracy. Clean the installation surface thoroughly, ensuring it is free of dust and contaminants.
2. Hinge Installation Procedure
First install the hinge cup on the door frame, using a laser level to ensure precise positioning. Then install the hinge cup on the door leaf, maintaining strict vertical alignment. Finally, assemble the hinge arm assembly and initially tighten all screws.
3. Three-Dimensional Adjustment Procedure
Adjust in the sequence: depth → vertical → horizontal. Use the dedicated adjustment tool, inspecting after each adjustment. After coarse adjustment, perform fine-tuning to ensure smooth door operation.
4. Final Inspection and Acceptance
Conduct comprehensive functional testing, including opening/closing force, hold position, and sealing performance. Verify torque values for all fasteners to meet design specifications. Complete final acceptance documentation.
Customer Value
1. Significantly Reduced Total Cost of Ownership
The extended lifespan and maintenance-free characteristics of this 3D Heavy Duty Hidden Hinge reduce long-term operational costs by 50%. Its standardised design facilitates bulk installation, boosting construction efficiency by 40% and significantly shortening project timelines.
2. Enhanced Project Value
The product holds multiple international certifications, guaranteeing engineering quality meets the highest standards. The concealed design substantially elevates project prestige, while precise adjustment functionality ensures installation accuracy. This adds significant selling points to projects, helping clients achieve superior investment returns.
