Heavy-duty capacity. Zero visible screws. Effortless single-person mounting for grand doors.
Grand Architecture Deserves Seamless Perfection
When interior design scales up, hardware shouldn’t get in the way.
Picture a massive, floor-to-ceiling door panel swinging open with effortless grace. No bulky industrial hinges disrupting the sightline. No exposed alignment screws cluttering the timber. Just clean, unbroken architectural lines where the door meets the frame.
That is the power of the Arlu® Invisible Neo L-7.
Engineered in Belgium and honored with the prestigious Red Dot Design Award, the Invisible Neo L-7 is the heavyweight champion of concealed hinges. Built for oversized, extra-heavy doors up to 150kg, it allows massive panels to rest completely flush against the wall while opening to a full 180°. Best of all, matching cover plates keep every single screw hidden away, open or closed.
Massive Doors. Effortless Solo Setup.
Hanging oversized interior doors usually requires a whole installation crew and a afternoon of wrestling with alignment.
Here’s where it gets clever…
Despite its extreme load rating, the L-7 features Arlu’s patented Easy-Hook® system. The hinge separates easily into door and frame components, allowing a single installer to hook and mount even massive door panels safely into place—no extra hands needed.
Once mounted, fine-tuning is simple. Using a standard Allen key, you can adjust alignment across three dimensions (height, width, and depth/pressure) without removing the door from its frame.
Key Benefits at a Glance
Extreme Load Capacity: Engineered to support heavy doors up to 150kg with 3 hinges (or up to 160kg depending on panel width).
100% Hidden Hardware: Matching cover plates conceal all mounting screws and 3D adjustment mechanisms.
180° Swing Clearance: Wide opening angle with zero obstruction.
Universal Handing: Fully reversible for left-opening or right-opening doors.
Maintenance-Free Operation: Integrated self-lubricating argentalon® bearings eliminate squeaks and grease forever.
| Matt Chrome | 70000003 |
| Glossy Chrome | 70000068 |
| Stainless Steel Look | 70000071 |
| White Matt | 70000174 |
| Tar Black | 70000108 |
| Black Umber | 70000111 |
| Bronze | 70000143 |
| Classic Bronze | 70000097 |
| Dark Bronze | 70000144 |
| Copper | 70000175 |
| Polished Brass | 70000065 |
Technical Details
| Material | High-grade Zamak alloy |
| Hinge Dimensions (L × W) | 170 × 32mm |
| Min Door Thickness | 40mm (46mm with max 7mm front panel/cladding) |
| Opening Angle | 180° |
| Load Capacity (2 Hinges) | Up to 115kg (730mm door width) / 80kg (1230mm width) |
| Load Capacity (3 Hinges) | Up to 165kg (730mm door width) / 115kg (1230mm width) |
| Load Capacity (4 Hinges) | Up to 175kg (730mm door width) / 130kg (1230mm width) |
| 3D Adjustability | Height: -3.0 / +3.0mm | Width: -3.0 / +4.0mm | Depth: -1.0 / +1.0mm |
| Durability Rating | Tested to min. 200,000 cycles |
| Fixing Screws | Max Ø5.0mm SPAX wood screws or M5 machine screws for steel frames |
Weight Table
| Number of hinges | 2 | 3 | 4 |
| 730 | 115 kg | 165 kg | 175 kg |
| 830 | 110 kg | 160 kg | 175 kg |
| 930 | 105 kg | 155 kg | 170 kg |
| 1030 | 100 kg | 150 kg | 165 kg |
| 1130 | 90 kg | 135 kg | 150 kg |
| 1230 | 80 kg | 115 kg | 130 kg |
Number of concealed hinges depending on the door weight and a maximum
door size of 2000 mm (height) x 1000 mm (width) in accordance with EN1935:
| 2 hinges | 3 hinges |
| 3 hinges | Max. 150 kg |
*To ensure the door leaf remains perpendicular, the use of at least 3 hinges is recommended. Using more than 4 hinges is not recommended; please contact ARLU if this is necessary.
Adjusted door weight:
According to the EN1935 standard, door closers increase the load on the door hinges and their wear and tear.
This must be taken into account for the correct calculation.
| door closer | door weight +20% |
| door closer with back-check | door weight +75% |
| for intensive use | door weight +10% |
*When using a door closer, we recommend using 4 hinges:
2 at the top, 1 in the middle and 1 at the bottom.
General Questions
A concealed hinge, also known as a hidden or invisible hinge, is a type of hinge designed to be completely hidden when the door is closed. Unlike traditional hinges, concealed hinges enhance the aesthetic appeal by providing a clean and seamless look.
Concealed hinges are widely used in residential, commercial, and public spaces. They are particularly popular in minimalist designs, luxury interiors, and high-traffic areas where aesthetics and functionality are paramount.
- Sleek Design: They provide a flush, screw-free appearance, enhancing the overall aesthetic of the door and space.
- Durability: Built to withstand frequent use, they are often cycle-tested for long-term reliability.
- Safety Features: Many concealed hinges offer finger protection by minimizing gaps between the door and the frame.
- Adjustability: Most concealed hinges provide 3D adjustment (height, width, and depth) for precise alignment.
- Wide Opening Angle: They typically allow for larger opening angles, up to 180°, improving accessibility.
Concealed hinges are designed to support significant door weights while maintaining smooth and durable operation. When installed correctly, they can perform as well as or better than traditional hinges, especially for modern applications.
- Lightweight doors: with smaller hinges
- Medium-weight doors
- Heavy doors: with larger, load-bearing hinges
It’s essential to select the correct hinge size and model for the specific door type and weight.
Most concealed hinges are universally compatible, meaning they can be used for both left- and right-opening doors.
Yes, concealed hinges can often be installed on existing doors, provided there is enough material in the door and frame to accommodate the hinge. However, some retrofitting may be required.
Many concealed hinges are designed for easy installation. Features like pre-aligned templates and innovative mechanisms (e.g., ‘easy hook’ designs) simplify the process. However, precise measurements and careful installation are essential to achieve optimal results.
Common tools include a drill, screws, screwdrivers, and sometimes a router for creating hinge recesses. Some concealed hinges come with installation guides or templates for added convenience.
- Height: Up or down for proper door positioning.
- Width: Side-to-side for perfect alignment.
- Depth: In or out for flush fitting with the frame.
This feature ensures precise alignment and smooth door operation, even after installation.
Concealed hinges are highly durable and often tested for long-term use, typically exceeding 200,000 open-close cycles. They are made from robust materials to withstand wear and tear.
Minimal maintenance is required. Occasional cleaning and lubrication may be needed to ensure smooth operation. It’s also a good idea to periodically check alignment and make adjustments if necessary.
No, concealed hinges are designed to hide screws, even when the door is open. This provides a clean and seamless appearance.
Yes, concealed hinges are perfect for minimalist and modern designs. They keep the focus on the door and room’s architecture by eliminating the visual clutter of traditional hinges.
Check the alignment using the hinge’s 3D adjustability features. Adjust the height, width, or depth to ensure proper positioning. If the problem persists, verify the installation measurements.
Replacing concealed hinges is relatively straightforward if you use the same hinge model. For different models, you may need to adjust or expand the hinge recess.
Yes, certain models of concealed hinges are designed specifically for heavy or large doors. Be sure to choose a hinge with the appropriate weight and size rating.
Many concealed hinges are compatible with fire-rated doors, but it’s essential to confirm the hinge’s certification and specifications for fire-rated applications.
While the hinge is mostly concealed, some models offer different finishes for visible components to match the door or frame’s design.
For assistance, contact the retailer or manufacturer where you purchased the hinge. They can provide technical support, replacement parts, or additional resources.
Elevate Your Spaces with the ARLU Invisible Neo Hinge
Ready to transform your doors into sleek, architectural masterpieces? The ARLU Invisible Neo Hinge combines flawless aesthetics with unmatched functionality, making it the ultimate choice for architects, interior designers and joiners seeking minimalist perfection.
From its hidden hardware to effortless 3D adjustability, this hinge isn’t just a tool—it’s a design feature that redefines what’s possible in modern interiors. Perfect for minimalist homes, high-end offices, and public spaces, the Neo hinge ensures your projects stand out with elegance and precision.
Don’t wait to revolutionize your designs. Click below to explore the ARLU Invisible Neo Hinge and bring your vision to life today!
