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Flag Type



  • Flag Type (Video)

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・e Catalog (Flag Type)

Various types and sizes with beautiful design.

Butterfly Type( 300 Series )


• Small and slim, ideal for lightweight doors (indoor use).
• The butterfly design makes installation highly efficient.
• Non handed - Can be used for both right and left hand opening doors.

Flag Type ( 100 / 200 / 1000 / 2000 Series )


• Designed with cutting edge technology from Nitto Kohki. Easy to install on all kinds of swing doors (regular rectangle doors, arch doors, etc).
• Variety of models available for different size and type of doors (wooden, aluminum, lightweight steel, steel and glass doors).

Drip-proof Type 700 series

• Made in highly endurable stainless steel with special sealing mechanism.
• Commercial grade, widely applicable for various locations including bathrooms, seashores etc.

Drip-proof Type PC series


• Drip-proof design, suitable for outdoor use or moist area.
• Adopts an actuator with unique temperature sensor, ensuring consistent closing speed all year round.

For glass doors NK series


• Drip-proof design, suitable for outdoor use or moist area.
• Suitable for glass doors 8 to 12 mm thick

Designed with abundant experience and advanced technology.

Flag Type 300, 1000, 2000, 100, and 200 series


Simple design

AUTO-HINGE is a door hinge with integrated door closer, providing the door a neat-looking. The simple and beautiful design matches different door styles.

Wide range of application

AUTO-HINGE can be also used on the arch doors or doors without top jamb for which the common overhead door closers are not readily compatible.

Sufficient door-closing power

The 100 and 200 series incorporate two different springs (weak and strong) along with a clutch switching mechanism, exhibiting sufficient door-closing power even with its slim body.

Internal stop mechanism

The "S" models come with an automatic mechanism that stops and holds the door. With the 300 series, stops at any position from 85˚ to 180˚ (free stops). With the 1000 series, at any position from 85˚ to 180˚ (free stops) or at 85˚. With the 100 and 200 series, at 85˚ and 150˚.

Simple adjustment for closing speed

The door closing speed can be easily adjusted with a screwdriver.

Easy to install

AUTO-HINGE are installed in exactly the same manner as conventional flag-type hinges. Installation can be done easily with minimal time and labor.

Outstanding durability

AUTO-HINGE is designed and constructed as to undergo minimum friction, achieving outstanding durability and long life time.

Mounting position for Flag Type AUTO-HINGE


In case the sub door does not require the self-closing function, you may use the empty hinges for the sub door so as to match the appearance with the master door.

Closing speed adjustment

• Remove the cap.
• Turn the speed adjustment screw inside the damper hinge by screwdriver and adjust the door closing speed to the desired speed.
• Place the cap back to the hinge.


Closing speed adjustment video (Flag Type)


Closing speed adjustment video (Flag Type)

Handling precautions