NHN® Invisible Door Hardware
Hidden Door Hinge / Concealed Door Closer
Features
NHN invisible door hardware offers beautiful and contemporary streamline appearance to the doors.
KT3D series completely hidden door hinge and NHN 1600U-M/495S high performance concealed door closer are designed to be mounted inside the door/frame so that keeps the aesthetic door appearance, ideal for the entrance where conventional type of door hinges/overhead door closers are not suitable or would interfere architectural design.
Suitable for wooden, steel and aluminum doors, ideal solution for modern commercial and residential buildings.
NHN KT3D is an innovative door hinge that is completely concealed into door and door frame.
The 3-D adjustability enables to make the hinge installation very easy and highly efficient. The opening angle of 180 degrees allows door to swing fully open. Combining with NHN 1600U-M/495S concealed door closer, offers beautiful and contemporary streamline door appearance with self-closing feature.
NHN 1600U-M / 495S are a super-thin, stylish, robust and high performance Concealed Door Closer.
With the door closed, the main body and lever are completely concealed into door and door frame to streamline the external appearance. Combining quality, efficiency and functionality, NHN 1600U-M/495S provides smooth door closing motion utilizing a needle bearing, ideal for hotel rooms, reception rooms, powder rooms, hallways, modern offices etc.
NHN invisible door hardware is a smart solution that integrates functionality into design.
Perfect for hotel guest rooms / conference rooms / reception rooms / modern storage / powder rooms / hallway doors etc.
Lineups
NHN KT3D series – Hidden Door Hinge
- Concealed into door and door frame.
- 3-D adjustability
- Opening angle :180 degrees
- Non-handed, works for left/right doors.
- Body: Special zinc alloy
- Arms: Aluminum
| Model | KT3D-140 | KT3D-199 | KT3D-200 |
|---|---|---|---|
| use | Internal Only | ||
| Max door size | 900 x 2400 mm (35.4 x 94.5”) | 1000 x 2400 mm (39.4 x 94.5”) | 1200 x 2400 mm (47.2 x 94.5”) |
| Min door thickness | 40 mm (1.6”) for wooden door 36 mm (1.4”) for steel door | 55 mm (2.2”) for wooden door 50 mm (2”) for steel door | 55 mm (2.2”) for wooden door 50 mm (2”) for steel door |
| Max door weight (with 2 hinges) | 60 kgs. (132 lbs.) | 105 kgs. (231 lbs.) | 160 kgs. (352 lbs.) |
| 3-D adjustability | Vertical ±2.5mm(±3/32”) Horizontal ±2mm(±5/64”) Depth ±1mm(±3/64”) | Vertical ±3mm(±1/8”) Horizontal +3mm(1/8”) or -2mm(-5/64”) Depth ±1mm(±3/64”) | Vertical ±3mm(±1/8”) Horizontal +3mm(1/8”) or -2mm(-5/64”) Depth ±1mm(±3/64”) |
NHN 1600U-M / 495S series – Concealed Door Closer
- Slim body, stylish, high quality and performance.
- Concealed into door and door frame
- Dual speed adjustability (closing and latching speeds)
- Standard hold-open function
- Adjustable opening angle and hold-open position
- Aluminum body
- Non-handed, works for left/right doors.
| Model | 1628U-M | 1638U-M | 495S |
|---|---|---|---|
| Use | Internal Only | Internal Only | Internal Only |
| Applicable door width | 550 – 850 mm (21.7 – 33.5”) | 750 – 950 mm (29.5 – 37.4”) | 550 – 1100 mm (21.7 – 43.3”) |
| Min. door/frame thickness (for standard installation) | Door : 35 mm (1.4”) Frame : 35 mm (1.4″) | Door : 35 mm (1.4”) Frame : 35 mm (1.4″) | Door : 49 mm (1.93”) Frame : 40 mm (1.57″) |
| Min. door/frame thickness (for top jamb installation) | Door : 35 mm (1.4”) Frame : 35 mm (1.4″) | Door : 35 mm (1.4”) Frame : 35 mm (1.4″) | Door : 40 mm (1.57″) Frame : 49 mm (1.93”) |
| Applicable door weight | 25 – 40 kgs. (55 – 88 lbs.) | 40 – 60 kgs. (88 – 132 lbs.) | 30 – 100 kgs. (66 – 220 lbs.) |
| Max opening angle | 105 deg. | 105 deg. | 120 deg. |
Download
KT3D series – Hidden Door Hinge
Instruction Manual for KT3D-140
Instruction Manual for KT3D-199
Instruction Manual for KT3D-200
Dimension Drawing for KT3D-140
Dimension Drawing for KT3D-199
Dimension Drawing for KT3D-200
Template for KT3D-140
Template for KT3D-199
Template for KT3D-200
1600U-M / 495S series – Concealed Door Closer
Installation Manual & Dimension Drawing for 1600U-M
Installation Manual & Dimension Drawing for NHN495S (Standard)
Installation Manual & Dimension Drawing for NHN495S (Reverse)