For upward-opening flap doors.
Can also be used with concealed, piano, or butt hinges.
Opening angle adjustable from 80Àö to 100Àö.
Designed to hold the door in a fully opened position.
Type that holds the door at both 65° and 90° also available.
Successfully passed 50,000 open/close cycles in a private test.
Closing speed adjustable.
Torque Calculation :
--Torque = Door Height x 1/2 x Door Weight.
--Per Piece : 20 - 70 kgf·cm.
--Per Pair : 40 - 140 kgf·cm.