RYOBI


search   Site Map

HOMECorporate ProfileInvestor Relations
BUILDERS' HARDWARE
Home > Builders' Hardware > Products > Concealed Door Closers > Application/Feature
Print

Concealed Door Closers

< back

SUPERIOR TECHNOLOGY IN COMPACT BODY REALIZES THE BEAUTY.

APPLICATION / COU SERIES (Thinner body type)

Model number Applicable door size Door thickness Body
thickness
Steel door Wooden door
Without
hold open
With
hold open
With
back
check
Max door width
(mm)
Max door weight
(kg)
Standard
installation
(mm)
Standard
installation
(mm)
size
(mm)
COU-52 COU-152 COU-52 BC 900 45 36 40 28
COU-53 COU-153 COU-53 BC 950 65
COU-52H - - 900 45
COU-53H - - 950 65

APPLICATION / CO SERIES

Model number Applicable door size Door thickness Body
thickness
Steel door Wooden door
Without
hold open
With
hold open
With
back
check
Max door width
(mm)
Max door weight
(kg)
Standard
installation
(mm)
Standard
installation
(mm)
size
(mm)
CO-52 CO-152 CO-52 BC 900 45 40 45 31
CO-53 CO-153 CO-53 BC 950 65 45 50 36
CO-54 CO-154 CO-54 BC 1050 85
CO-55 CO-155 - 1200 120 60 65 48
CO-56 - - 1500 180

APPLICATION / CO SERIES ES-STOPPER MODEL (OPTION)

Model number Applicable door size Door thickness Body
thickness
Steel door Wooden door
Without
hold open
With
hold open
With
back
check
Max door width
(mm)
Max door weight
(kg)
Standard
installation
(mm)
Standard
installation
(mm)
size
(mm)
- CO-155 ES - 1200 120 60 65 48
- CO-156 ES - 1500 180


Door cut dimension



Installation


EXCEPTIONAL PERFORMANCE-EXCEPTIONAL VALUE

Ryobi's technology in high quality die-casting and advanced production methods have been combined to produce a highly competitive range of performance closers. In-house tested to 500,000 cycles and incorporating precision rack and pinion mechanisms, the concealed closer range offers outstanding quality and performance at a very realistic price.


Speed adjustment valve



Hydraulic backcheck function(CO-55,56)

FULLY HYDRAULIC CONTROLS

Maximum control over the doors closing speed is provided by the easy to operate hydraulic adjustment, whilst the versatile hydraulic mechanism also allows for 1st and 2nd closing (as illustrated), ensuring a smooth and independent control over the doors movement. The added benefit of a latching speed control is available with the COU-50 series and CO-55,56,whilst for the heavy duty CO-55 and 56 a new,adjustable,hydraulic backcheck function is a significant feature.


NEW MECHANICAL BACKCHECK FUNCTION

Available for all models in the series, the new mechanical backcheck (cushion check) function, features setting and adjustment in the guide rail. The cushioned rubber absorbs the power of the door in the event of it violently swinging open, as in the case of high winds or public misuse.
The backcheck facility reduces the possibility of door damage and is particularly important in public buildings, schools and hospitals where the protection of people and property is paramount.
Note:CO-55,56 have hydraulic backcheck function.
Mechanical backcheck function is not necessary for CO-55,56.


Optional Specification


ADJUSTABLE DOOR STOP/HOLD OPEN/BACKCHECK ANGLE & HOLD OPEN FORCE

By the positioning of stopper, stop metal fitting (hold open device), and mechanical backcheck device, the door stop angle, hold open angle and backcheck angle are adjustable as required. Hold open force is also adjustable by the hold open force adjustment nut as shown in the chart.


Adjustment of door stop/hold open/backcheck angle
Door stop/Hold open/backcheck angle are adjustable by the posistioning of stopper/stopmetal fitting (hold open device), and mechanical backcheck device at 1 - 6 as shown in illustration.


Model No. Adjustable range
COU-152 0∼3.6kgf.m(0∼36Nm)
CO-152
COU-153 0∼3.1kgf.m(0∼31Nm)
CO-153
CO-154 0∼2.7kgf.m(0∼27Nm)
CO-155 0∼3.7kgf.m(0∼37Nm)
CO-155 ES 3∼15kgf.m(30∼150Nm)
CO-156 ES 2∼14kgf.m(20∼140Nm)