NITTO-DENSEI AUTO HINGES


BUTTERFLY TYPE
The perfect compliment to elegant interiors 
PRODUCT FEATURE
POWERFUL DOOR CLOSING Exclusive DENSEI-patented door closing mechanism built into every hinge.
EASY INSTALLATION As easy to install as any ordinary hinge.
BLENDS WITH ANY DECOR Slim, armless design accentuates the beauty of any interior. 
FLEXIBILITY Available for both right-opening and left-opening doors.
CAN BE ADAPTED FOR SPECIAL DOORS Can be used in situations where other closers can't, such as arches doors.
EASY CLOSING-SPEED ADJUSTMENT A simple turn of the screwdriver lets you adjust the closing speed.
STAY-OPEN FUNCTION Door can be made to stay open at any angle between 90 degree and 180 degree.
SELECTION CHART
MODEL DOOR* DOOR SIZE (mm/inch) DOOR WEIGHT (kg/lb) STAY-OPEN FUNCTION RANGE MAX. OPENING RANGE SURFACE COLORS & FINISH REMARKS
311S (Code:HEA0101) Wood    Aluminum Lightweight Steel            (In door use) W:800/31.5  or less  H:2000/78.7 or less      D:30/1.18    or less 30/66 or less 90 degree - 180 degree 180 degree, left or right, single side opening Silver, Bronze, Ivory, Gold; melamine-baked resin coating
310 (Code:HEA0201) Empty hinge**
*Door and frame materials to which the hinges is fitted should be of hardwood, such as lauan or harder.
**Same appearance as Auto Hinge, but without interior closing mechanism.
RANGE OF OPEN-CLOSE CONTROLS
Door will stay open if opened to any point between 90 degree and 180 degree.

Door automatically closes if moved to an angle of approx 85 degree. 


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