Datasheet

Use the Recommended Pneumatic Circuit
Caution
Operating Precautions
Caution
Caution
1. Do not use 3-position solenoid valves.
Avoid use in combination with 3-position solenoid valves
(especially closed center metal seal types). If pressure is trapped
in the port on the lock mechanism side, the cylinder cannot be
locked. Furthermore, even after being locked, the lock may be
released after some time, due to air leaking from the solenoid
valve and entering the cylinder.
2. Back pressure is required for releasing the lock.
Before starting operation, be sure to control the system so that air
is supplied to the side without the lock mechanism as shown in
the above figure. There is a possibility that the lock may not be
released. (Refer to the section on releasing the lock.)
3. Release the lock for mounting or adjusting the cylinder.
If mounting or other work is performed when the cylinder is locked,
the lock unit may be damaged.
4. Operate with a load ratio of 50% or less.
If the load ratio exceeds 50%, this may cause problems such as
failure of the lock to release, or damage to the lock unit.
5. Do not operate multiple cylinders in synchronisation.
Avoid applications in which two or more end lock cylinders are
synchronised to move one work piece, as one of the cylinder
locks may not be able to release when required.
6. Use a speed controller with meter-out control.
Lock cannot be released occasionally by meter-in control.
7. Be sure to operate completely to the cylinder stroke end on
the side with the lock.
If the cylinder piston does not reach the end of stroke, locking and
unlocking may not be possible.
8. Adjust the position of an auto switch, so that it could work at
the both positions where it is distanced from the stroke and a
backlash (2 mm).
When a 2-colour indication switch is adjusted for green indication
at the stroke end, it may change to red for the backlash return, but
this is not abnormal.
• This is necessary for the correct locking and unlocking actions.
Operating Pressure
1. Supply air pressure of 0.15 MPa or higher to the port on the side
that has the lock mechanism, as it is necessary for releasing the
lock.
Exhaust Speed
1. When the pressure on the side with the lock mechanism drops to
0.05 MPa or below, the lock engages automatically. If the piping on
the side with the lock mechanism is thin and long, or if the speed
controller is away from the cylinder port, the lock engagement may
take some time due to decline of the exhaust speed. The same
result will be caused by clogging of the silencer installed at the
Releasing the Lock
Warning
Manual Release
Caution
1. Manual release (Non-lock type)
Insert the accessory bolt from the top of the rubber cap (it is not
necessary to remove the rubber cap), and after screwing it into the
lock piston, pull it to release the lock. If you stop pulling the bolt, the
lock will return to an operational state.
Thread sizes, pulling forces and strokes are as shown below.
2. Manual release (Lock type)
While pushing the M/O knob, turn it 90° counterclockwise. The lock
is released (and remains in a released state) by aligning the mark
on the cap with the OFF mark on the M/O knob. When locking is
desired, turn the M/O knob clockwise 90° while pushing fully,
correspond on cap and ON mark on the M/O knob. The correct
position is confirmed by a click sound “click”. If not confirmed,
locking is not done.
With head end lock With rod end lock
1. Before releasing the lock, be sure to supply air to the side without
the lock mechanism, so that there is no load applied to the lock
mechanism when it is released. (Refer to the recommended
pneumatic circuits.) If the lock is released when the port on the
other side is in an exhaust state, and with a load applied to the lock
unit, the lock unit may be subjected to an excessive force and be
damaged. Also, it is very dangerous because the piston rod will
move suddenly.
Rubber cap
Unlock
Manually locked state
Lock
Manually unlocked state
Remove the bolt for normal operation.
It can cause lock malfunction or faulty release.
Bore size
(mm)
20, 25, 32
40, 50, 63
80, 100
M2.5 x 0.45 x 25 l or more
M3 x 0.5 x 30 l or more
M5 x 0.8 x 40 l or more
Thread size
4.9
10
24.5
Pulling force
(N)
2
3
3
Stroke
(mm)
Caution
Standard
Large Bore
Size
Long Stroke
Non-rotating
Rod
Axial Piping
Anti-lateral
Load
With End Lock
Water
Resistant
Auto SwitchMade to Order
With Auto
Switch
Compact Cylinder: With End Lock Series CBQ2
172