Achieve seamless aesthetics and powerful performance with the RYOBI CO concealed door closer. Its fatter design offers exceptional control and durability for your doors. Learn more about the CO range.
● There are two speed ranges for door closing speed.
● Those ranges are classified into two stages of the 1st speed range
which controls general door closing speed and the 2nd speed range.
● Those speeds can be adjusted independently.
● Closing time from the door opened at 90 degrees is appropriately 5 to
8 seconds. (Set the 2nd speed slightly slower than the 1st speed.)
● There are two speed ranges for door closing speed.
● Those ranges are classified into three stages, 1st speed range
which controls general door closing speed, 2nd speed range,
and latching action range.
● Those speeds can be adjusted independently.
● Closing time from the door opened at 90 degrees is appropriately 5 to
8 seconds. (Set the 2nd speed slightly slower than the 1st speed.)
● Door can be closed by the latching action function to quickly close in 2 degrees
before closing position.
● The latching action does not move slower than the 2nd speed
Hydraulic backcheck function (CO-55,56)
● This function prevents accidents and injuries and door damage which occurs due to a door suddenly
opening by a strong wind or rough handling before it happens.
● The door becomes heavier when it operates, however, this is all by design.
The door opens smoothly if it is slowly pushed.
● When installing the door closer equipped with the backcheck function, sufficiently reinforce the
hanging hardware and supporting plate.
● Mechanical backcheck is available on models COU-52, 53, CO-52, 53, 54
Hold-Open Device
● Hold-open angle can be adjusted by changing the installation position of the hold-open device.
● The hold-open angle is a maxium opening angle in the case of a stopper device (non hold-open).
ES Stopper (option)
*** There are only Size 2 and 3 for COU Series (thinner body) ***
Achieve seamless aesthetics and powerful performance with the RYOBI CO concealed door closer. Its fatter design offers exceptional control and durability for your doors. Learn more about the CO range.
● There are two speed ranges for door closing speed.
● Those ranges are classified into two stages of the 1st speed range
which controls general door closing speed and the 2nd speed range.
● Those speeds can be adjusted independently.
● Closing time from the door opened at 90 degrees is appropriately 5 to
8 seconds. (Set the 2nd speed slightly slower than the 1st speed.)
● There are two speed ranges for door closing speed.
● Those ranges are classified into three stages, 1st speed range
which controls general door closing speed, 2nd speed range,
and latching action range.
● Those speeds can be adjusted independently.
● Closing time from the door opened at 90 degrees is appropriately 5 to
8 seconds. (Set the 2nd speed slightly slower than the 1st speed.)
● Door can be closed by the latching action function to quickly close in 2 degrees
before closing position.
● The latching action does not move slower than the 2nd speed
Hydraulic backcheck function (CO-55,56)
● This function prevents accidents and injuries and door damage which occurs due to a door suddenly
opening by a strong wind or rough handling before it happens.
● The door becomes heavier when it operates, however, this is all by design.
The door opens smoothly if it is slowly pushed.
● When installing the door closer equipped with the backcheck function, sufficiently reinforce the
hanging hardware and supporting plate.
● Mechanical backcheck is available on models COU-52, 53, CO-52, 53, 54
Hold-Open Device
● Hold-open angle can be adjusted by changing the installation position of the hold-open device.
● The hold-open angle is a maxium opening angle in the case of a stopper device (non hold-open).
ES Stopper (option)
*** There are only Size 2 and 3 for COU Series (thinner body) ***
