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CE Certified 55mm A55ZP Roller Lock by China Suppliers - Enhanced Security for External and Smoke Doors
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CE Certified 55mm A55ZP Roller Lock by China Suppliers - Enhanced Security for External and Smoke Doors

Introducing our high-quality single-leaf doors, expertly designed for external and smoke-proof applications. These doors are prepared for profile cylinders with a convenient key action, allowing for one-turn operation. As a leading manufacturer in China, we pride ourselves on delivering exceptional products that meet international standards. Our factory ensures that each door is crafted with precision, making us a reliable choice among suppliers in the industry. Enhance your security and style with our premium doors, perfect for both residential and commercial use
  • Model No. A55ZP
  • Color Black, Satin Chrome,gun Black , Satin brass , Satin Nickle , or custom color(as your color sample)
  • Product Positioning Mid-to-high-end hardware
  • Certification ISO9001
  • Customization OEM & ODM acceptable
  • Strength 20 Years of Manufacturing Experience

Advantage
🔄
200,000 Times Cycling Test
🧪
96H Salt Spray Test
✅
100% Good Performance
🏅
Patent
Key Specifications
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
Technical Profile

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.

⚙️ Engineered for Unmatched Strength: 80kg Heavy-Duty Performance

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.

🚪 Maximum Accessibility & Seamless Aesthetics: The 180-Degree Full-Clearance Design

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.

🎯 Advanced 3D Adjustability for Flawless Alignment

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:

  • Depth Adjustment (In/Out): To set the exact position of the door, ensuring a perfectly flush surface or a desired reveal.
  • Vertical Adjustment (Up/Down): To level the door precisely, creating even horizontal gaps along the top and bottom.
  • Lateral Adjustment (Side-to-Side): To fine-tune the gaps between adjacent doors, ensuring consistent, hairline margins.

This adjustability saves significant installation time, compensates for material movement, and guarantees a flawless, gap-free finish that is the hallmark of quality craftsmanship.

🔧 Streamlined Simplicity: The Easy-Install Advantage

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 robust features, allowing for a quicker, more confident setup that gets the job done right the first time.

🔄 200,000 Cycles Tested 🧪 96H Salt Spray Passed ⚖️ 80kg Load Capacity 📐 180° Full Opening 🏅 Patented Design
Conclusion

The Superior Choice for Demanding Applications

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.

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Frequently Asked Questions
What is the maximum door weight this hinge can support?
This 3D Adjustable Hidden Door Hinge is engineered to support doors weighing up to 80 kg when using two hinges. Its high-grade zinc alloy construction and hardened steel pivot pins ensure stable, long-term load-bearing performance for heavy wooden flush doors.
What does "3D adjustable" mean, and how does it help during installation?
The 3D adjustment system allows precise fine-tuning in three directions after the hinge is mounted: Vertical (±2.5mm) for leveling the door height, Horizontal/Lateral (±2mm) for adjusting side gaps, and Depth (±1mm) for setting the exact flush position. This eliminates the need to re-drill and saves significant installation time.
Is the hinge visible when the door is closed?
No. This is a fully concealed (hidden) hinge. When the door is closed, the hinge is completely hidden within the door and frame, preserving the clean, minimalist aesthetic of flush-mounted wooden doors without any visible hardware interruption.
What types of doors is this hinge compatible with?
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.
What quality tests has this hinge passed?
This hinge has undergone rigorous quality validation, including a 200,000-times cycling durability test and a 96-hour salt spray corrosion resistance test, with 100% good performance results. It is also a patented product, reflecting its innovative engineering and quality assurance standards.
What material is this hinge made from, and why does it matter?
The hinge is manufactured from premium zinc alloy, selected for its superior structural integrity, excellent corrosion resistance, and long-term dimensional stability. This material choice ensures the hinge maintains its shape and performance over years of daily use, resisting wear, rust, and environmental degradation far better than standard steel alternatives.