5-Inch Hydraulic Self-Closing Invisible Door Hinge 50KG
5-Inch Hydraulic Self-Closing Invisible Door Hinge 50KG
5-Inch Hydraulic Self-Closing Invisible Door Hinge – Quiet, Smooth & Modern
Upgrade your interior doors with this premium hydraulic self-closing invisible door hinge. Crafted from durable aluminum alloy with an electrophoresis surface finish, this 5.5-inch hinge offers silent, controlled door closure every time — keeping your home tidy, secure, and noise-free. Its sleek, concealed design blends seamlessly into any modern interior.
Key Features
- Hydraulic Damping Buffer: Delivers whisper-quiet, controlled closing action — no slamming, no noise
- Invisible Design: Concealed installation for a clean, minimalist aesthetic on wooden doors
- 180° Opening Angle: Full-range door swing with hydraulic positioning zones for smooth operation
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Multi-Zone Hydraulic Positioning:
- 0°–45°: Gradual slow-close zone
- 45°–85°: Quick-close zone
- 95°–165°: Hold-open positioning zone
- High Load Capacity: Supports up to 50 kg with 2 pcs, up to 80 kg with 3 pcs
- Aluminum Alloy Construction: Lightweight yet strong, resistant to corrosion and daily wear
- Multiple Finish Options: Available in Gold, Silver, Black, and Grey to match your décor
- Easy Installation: Each pack includes 1 hinge + screws — all you need for a quick, hassle-free fit
Specifications
| Model | DFL-R019D |
| Material | Aluminum Alloy |
| Size | 5.5 Inch |
| Surface Treatment | Electrophoresis |
| Colors Available | Gold / Silver / Black / Grey |
| Opening Angle | 180 Degrees |
| Max Load (2 pcs) | 50 KG |
| Max Load (3 pcs) | 80 KG |
| Max Door Height | ≤ 2000 mm |
| Max Door Width | ≤ 90 mm |
| Weight | 450 g / pc |
| Package Contents | 1 x Hinge + Screws |
| Country of Origin | Made in China (Mainland) |
Perfect For
- Apartment interiors and home renovation projects
- Wooden interior doors in living rooms, bedrooms, bathrooms, and offices
- Any space where quiet, automatic door closing is a priority
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Frequently Asked Questions
Q: What types of doors are compatible with this hydraulic self-closing hinge?
A: This 5-inch invisible hydraulic hinge is designed for wooden interior doors with a maximum height of 2000 mm and maximum width of 90 mm, making it ideal for standard apartment and home interior doors in living rooms, bedrooms, bathrooms, and home offices.
Q: How many hinges do I need per door?
A: For doors up to 50 kg, 2 hinges are sufficient. For heavier doors up to 80 kg, we recommend using 3 hinges for optimal support and smooth hydraulic performance.
Q: Can I adjust the closing speed of this hydraulic door hinge?
A: The hydraulic mechanism features three built-in positioning zones (0°–45° slow close, 45°–85° quick close, 95°–165° hold-open), providing an automatic, controlled closing sequence. The zones work together to deliver a consistently smooth and quiet door close without manual adjustment.
Q: Is this hinge truly invisible when the door is closed?
A: Yes. The concealed design means the hinge is hidden within the door and frame when the door is in a closed position, maintaining a clean and seamless aesthetic — ideal for modern, minimalist interiors.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.