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CE Certified Standard Lock 5572Z - Reliable Security Solution from China Suppliers and Factory for Fire and Smoke Doors
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CE Certified Standard Lock 5572Z - Reliable Security Solution from China Suppliers and Factory for Fire and Smoke Doors

Discover our European standard lock, CE certified and specifically designed for external fire and smoke doors. Our locks are available for both rebated and non-rebated doors, ensuring versatility and safety. As a leading supplier and factory in China, we pride ourselves on delivering high-quality products that meet international standards. Enhance your security with our reliable locking solutions, perfect for various applications in fire safety
  • Model No. 5572
  • 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, correcting minor imperfections in the cabinet carcase or door:
  • 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.
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
Q What is the maximum door weight this 3D adjustable hidden hinge can support?
This 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.
Q What types of doors are compatible with this concealed hinge?
This hinge is designed for wooden doors, flush doors, ecological gates, cupboards, and wardrobes. The minimum door thickness required is 38mm and the maximum door width supported is 900mm, making it suitable for a wide range of residential and commercial applications.
Q How does the 3D adjustment system work, and what tolerances does it allow?
The integrated 3D micro-adjustment system allows fine-tuning in all three spatial planes after mounting: Vertical ±2.5mm (up/down), Horizontal ±2mm (side-to-side), and Depth ±1mm (in/out). This enables precise door alignment and compensates for minor imperfections in the cabinet frame or door panel.
Q What opening angle does this hidden door hinge achieve?
This hinge provides a full 180-degree opening angle, allowing doors to swing completely open and rest flush against adjacent surfaces. This provides total, unobstructed access to the cabinet or wardrobe interior while maintaining a completely hidden appearance when the door is closed.
Q What quality and durability tests has this hinge passed?
This hinge has undergone rigorous quality verification, including a 200,000-times cycling test to confirm long-term mechanical reliability, a 96-hour salt spray test to validate corrosion resistance, and a 100% performance inspection at the point of manufacture. It also holds a registered patent, reflecting its innovative engineering design.
Q What material is the hinge made from, and what are the installation cutter requirements?
The hinge is manufactured from premium zinc alloy, chosen for its superior structural integrity, corrosion resistance, and dimensional stability. For installation, a cutter with a 28mm diameter is required. The cutting lengths are 160mm and 116mm, with cutting depths of 10mm and 25.5mm respectively.