CE Certified China A40ZDJ Double Hook Lock 40mm - Secure Closure for Sliding Doors | Trusted Suppliers & Factory
| Features | For wooden door and flush doors, Ecological Gate, Cupboard, Wardrobe. Easy to install and adjust with 3D adjustable: Vertical ±2.5mm, Horizontal ±2mm, Depth ±1mm |
| Opening Angle | 180° |
| TECHNICAL DATA | |
| Max. Door Weight (2 hinges) | 80 KG |
| Min. Door Thickness | 38 mm |
| Max. Door Width | 900 mm |
| Cutter Diameter | 28 mm |
| Cutting Length | 160 & 116 mm |
| Cutting Depth | 10 & 25.5 mm |
| Material | Zinc Alloy |
In the world of architectural hardware and precision joinery, the hinge is the unsung hero that defines functionality, durability, and aesthetic integrity. The 3D Adjustable Hidden Door Hinge represents a breakthrough in engineering, specifically designed to meet the most demanding requirements of contemporary flush wooden doors. This product combines a revolutionary 180-degree opening angle with an 80kg heavy-duty load capacity, advanced three-dimensional adjustability, and an easy-install design, all constructed from premium zinc alloy. It is the definitive hardware solution for professionals and homeowners who will not compromise on performance, convenience, or sleek modern design.
At the heart of this hinge lies its exceptional load-bearing capability. Engineered to support up to 80 kilograms, this hinge redefines the concept of heavy-duty for residential and commercial applications. The core mechanism utilizes a high-grade zinc alloy arm and housing, chosen for its superior structural integrity, remarkable corrosion resistance, and long-term dimensional stability.
This robust construction ensures the hinge can withstand the weight of solid wood doors, thick panels, and frequent daily use without sagging, warping, or failure. Reinforced with hardened steel pivot pins and smooth-operating bearings, it guarantees a consistently silent, fluid, and reliable swing cycle for the lifetime of the installation.
This hinge transforms user interaction with storage spaces through its 180-degree full-opening capability. Doors can swing completely open, resting flush against adjacent surfaces, thereby providing total, unobstructed access to the cabinet or wardrobe interior. This design eliminates awkward angles and blind corners, making it ideal for pantries, corner cabinets, appliance garages, and any space where maximizing usability is paramount.
Despite this expansive range of motion, the hinge remains entirely concealed (hidden) when the door is closed, preserving the clean, minimalist lines of flush-mounted doors.
Achieving a perfectly aligned, professional-grade installation is made effortless with the integrated 3D micro-adjustment system. This feature allows for precise, tool-based fine-tuning in all three spatial planes after the hinge is mounted, correcting minor imperfections in the cabinet carcase or door.
Recognizing the value of time and efficiency, this hinge system is designed with an easy-install philosophy. It features clear mounting templates, intuitive components, and a straightforward process that simplifies installation for both seasoned professionals and capable DIY enthusiasts. The design minimizes complex steps without sacrificing the robust features, allowing for a quicker, more confident setup that gets the job done right the first time.
The 3D Adjustable Hidden Door Hinge is more than a simple fitting; it is a comprehensive performance system. It successfully merges extreme 80kg load-bearing capacity with the ultimate accessibility of a 180-degree opening, the surgical precision of 3D adjustability, and the practicality of easy installation — all housed within a durable zinc alloy body. For those seeking a reliable, high-performance, and aesthetically discreet hinge for heavy wooden flush doors, this product stands as the intelligent and uncompromising choice. It ensures that every door operates with smooth, silent authority and maintains flawless alignment for years to come, fully embodying the union of robust strength and refined modern design.
This 3D Adjustable Hidden Door Hinge is engineered to support a maximum door weight of 80 kg when two hinges are used. Its high-grade zinc alloy construction ensures long-term structural integrity and reliable load-bearing performance for heavy solid wood and flush doors.
3D adjustability means the hinge can be fine-tuned in three directions after installation: vertical (±2.5mm), horizontal (±2mm), and depth (±1mm). This allows you to correct minor misalignments caused by uneven cabinet frames or material movement, ensuring a perfectly flush, gap-free door finish without the need to re-drill or reposition the hinge.
No. This is a fully concealed (hidden) hinge. When the door is closed, the hinge mechanism is completely hidden within the door and cabinet frame, preserving the clean, minimalist aesthetic of flush-mounted doors and allowing the natural beauty of the wood or lacquer finish to remain uninterrupted.
This hinge is designed for wooden doors, flush doors, ecological gates, cupboards, and wardrobes. It requires a minimum door thickness of 38mm and supports doors up to 900mm wide, making it suitable for a wide range of residential and commercial cabinetry and door applications.
This hinge has undergone rigorous quality testing, including a 200,000-times cycling test to verify long-term mechanical reliability and a 96-hour salt spray test to confirm corrosion resistance. All units achieve 100% good performance on quality inspection, and the product holds a registered patent for its innovative design.
The hinge is manufactured from premium zinc alloy, which offers superior corrosion resistance, dimensional stability, and structural strength. For installation, a 28mm diameter cutter is required. The cutting lengths are 160mm and 116mm, with cutting depths of 10mm and 25.5mm respectively, ensuring a precise and secure fit within the door and frame.


