VIDEO:
30 SECOND
PART BUILDER
EXPLAINED
- SMC Home
- Actuators
- Specialty Actuators
- Rod Lock
- Locking
- CLA2
- C(D)LA2W, Locking, Double Acting, Double Rod
C(D)LA2W, Locking Air Cylinder, Double Acting, Double Rod
The CLA2 cylinder acts as an air-operated brake with spring-backup. When external position feedback sends a signal to an air valve, the brake is actuated and fast-acting shoes grab the actuator shaft. When pressure is removed, the spring automatically locks the brake onto the shaft. Three locking mechanisms are available: spring lock, air pressure lock and air/spring pressure lock. The CLA2 locks in either direction, comes in five bore sizes, and is available with PT or NPT ports. Other features include non-lube operation, air cushions, and seven mounting styles.
- Double acting, double rod cylinder w/lock
- Mounting: basic, axial foot, rod flange, head flange, single clevis, double clevis, center trunnion
- Bore sizes (mm): 40, 50, 63, 80, 100
- Strokes up to 1500mm (depending on bore size & mounting)
- Auto switch capable
How to order
How to Order
Number of
auto switches
With auto switch
CLA2
CDLA2
L
L
E
50
50
100
100
E
JN
JN
M9BW
With auto switch
(Built-in magnet)
Cylinder stroke [mm]
For details, refer to page 2.
Mounting
Tube material
* Not available with auto switch.
With rod boot/cushion
Lock operation
Auto switch
* For applicable auto switches,
refer to the table below.
Bore size
If a built-in magnet cylinder without an auto
switch is required, there is no need to enter
the symbol for the auto switch.
(Example) CDLA2L40-100-E
Port thread
type
Made to Order
For details, refer to page 2.
* Air-hydro type has
no cushion.
ø40, ø50, ø63, ø80, ø100
Series CLA2
Nil
Aluminum tube
F
*
Steel tube
H
Air-hydro type
Nil
Rc
TN
NPT
40
40 mm
50
50 mm
63
63 mm
80
80 mm
100
100 mm
Nil
2 pcs.
S
1 pc.
n
“n” pcs.
Nil
Without auto switch
E
Spring locking (Exhaust locking)
P
Pneumatic locking (Pressure locking)
D
Spring and pneumatic locking
Rod boot
Nil
Without rod boot
J
Nylon tarpaulin
K
Heat resistant tarpaulin
Cushion
Nil
With cushion on both sides
N
Without cushion
C
Single clevis
D
Double clevis
T
Center trunnion
B
Basic
L
Axial foot
F
Rod flange
G
Head flange
Built-in Magnet Cylinder Model
* Lead wire length symbols: 0.5 m·················· Nil (Example) M9NW
1 m·················· M (Example) M9NWM
3 m·················· L (Example) M9NWL
5 m·················· Z (Example) M9NWZ
* Solid state auto switches marked with “” are produced upon receipt of order.
* Since there are other applicable auto switches than listed above, refer to page 23 for details.
* For details about auto switches with pre-wired connector, refer to the Best Pneumatics No. 3. For the D-P3DWAl, refer to the WEB catalog.
*
The D-A9l/M9lll/P3DWAl auto switches are shipped together, (but not assembled). (However, auto switch mounting brackets are assembled for the D-A9l/M9lll before shipment.)
** Water resistant type auto switches can be mounted on the above models, but in such case SMC cannot guarantee water resistance.
Please contact SMC regarding water resistant types with the above model numbers.
Applicable Auto Switches/Refer to the Best Pneumatics No. 3 for further information on auto switches.
Type Special function
Electrical
entry
Indicator light
Wiring
(Output)
Load voltage Auto switch model Lead wire length [m]
Pre-wired
connector
Applicable load
DC AC
Tie-rod
mounting
Band
mounting
0.5
(Nil)
1
(M)
3
(L)
5
(Z)
Solid state auto switch
—
Grommet
Yes
3-wire (NPN)
24 V
5 V, 12 V
—
M9N
—
V V V v v
IC circuit
Relay,
PLC
—
G59
V
—
V v v
3-wire (PNP)
M9P
—
V V V v v
—
G5P
V
—
V v v
2-wire 12 V
M9B
—
V V V v v
——
K59
V
—
V v v
Terminal
conduit
3-wire (NPN)
24 V
12 V
—
G39C G39
— — — — —
2-wire
K39C K39
— — — — —
IC circuit
Diagnostic indication
(2-color indication)
Grommet
3-wire (NPN)
5 V, 12 V
M9NW
—
V V V v v
—
G59W
V
—
V v v
3-wire (PNP)
M9PW
—
V V V v v
—
G5PW
V
—
V v v
2-wire 12 V
M9BW
—
V V V v v
—
—
K59W
V
—
V v v
Water resistant
(2-color indication)
3-wire (NPN)
5 V, 12 V
M9NA
**
—
v v V v v
3-wire (PNP)
M9PA
**
—
v v V v v
2-wire 12 V
M9BA
**
—
v v V v v
—
G5BA
**
— —
V v v
With diagnostic output (2-color indication)
4-wire (NPN)
5 V, 12 V
F59F G59F
V
—
V v v
IC circuit
Magnetic field resistant (2-color indication)
2-wire (Non-polar)
—
P3DWA
— — —
V V v
—
Reed auto switch
—
Grommet
Yes
3-wire (NPN equivalent)
— 5 V —
A96
—
V
—
V
— —
IC circuit
—
2-wire 24 V
12 V
100 V
A93
—
V
—
V
— — —
Relay,
PLC
No
100 V or less
A90
—
V
—
V
— —
IC circuit
Yes
100 V, 200 V
A54 B54
V
—
V V
—
—
No
200 V or less
A64 B64
V
—
V
— —
Terminal
conduit
Yes
—
A33C A33
— — — — —
PLC
100 V, 200 V
A34C A34
— — — — —
DIN terminal
A44C A44
— — — — —
Relay,
PLC
Diagnostic indication (2-color indication)
Grommet — —
A59W B59W
V
—
V
— —
Fine Lock Cylinder
Double Acting, Single Rod
1
Series CLA2
Specifications
Lock Specifications
Rod Boot Material
* Constraints associated with the allowable kinetic energy are imposed on the speeds at which the piston
can be locked.
* Maximum ambient temperature for the rod boot
Standard Strokes
Made to Order
Provided with a compact lock mechanism,
it is suitable for intermediate stop,
emergency stop, and drop prevention.
Recommended Pneumatic Circuit/Caution on Handling
Caution
For detailed specifications mentioned above,
refer to "Specific Product Precautions 3".
Accessories
Note 1) Intermediate strokes not listed above are produced upon receipt of order.
Spacers are not used for intermediate strokes.
Note 2) Long strokes are applicable for the axial foot and rod flange types.
Caution
1. The minimum stroke for mounting varies
with the auto switch type and cylinder
mounting type. In particular, the center
trunnion type needs careful attention.
(For details, refer to pages 20 and 21.)
Minimum Stroke for
Auto Switch Mounting
Lock operation
Spring locking
(Exhaust locking)
Spring and
pneumatic locking
Pneumatic locking
(Pressure locking)
Unlocking pressure [MPa] 0.3 or more 0.1 or more
Lock starting pressure [MPa] 0.25 or less 0.05 or more
Maximum operating pressure [MPa]
1.0 0.5
Locking direction Both directions
Bore size [mm]
40
50 63 80 100 40 50 63 80 100
Type Non-lube Air-hydro
Fluid Air
Turbine oil (Lock portion is air)
Action Double acting
Proof pressure 1.5 MPa
Maximum operating pressure 1.0 MPa
Minimum operating pressure 0.08 MPa 0.2 MPa
Piston speed 50 to 500 mm/sec
*
15 to 300 mm/sec
*
Ambient and fluid temperature
Without auto switch: –10°C to 70°C
With auto switch: –10°C to 60°C
(No freezing)
5°C to 60°C
Cushion Air cushion None
Stroke length tolerance Up to 250:
+1.0
0
, 251 to 1000:
+1.4
0
, 1001 to 1500:
+1.8
0
Mounting
Basic, Axial foot, Rod flange, Head flange, Single clevis,
Double clevis, Center trunnion
Refer to pages 18 to 23 for cylinders with
auto switches.
•Minimum stroke for auto switch mounting
•Auto switch proper mounting position
(detection at stroke end) and its mounting
height
•Operating range
•Auto switch mounting brackets/Part no.
Bore size [mm] Standard stroke [mm]
Note 1)
Long stroke [mm]
Note 2)
40
25, 50, 75, 100, 125, 150, 175, 200, 250
300, 350, 400, 450, 500
800
50, 63
25, 50, 75, 100, 125, 150, 175, 200, 250
300, 350, 400, 450, 500, 600
1200
80, 100
25, 50, 75, 100, 125, 150, 175, 200, 250
300, 350, 400, 450, 500, 600, 700
ø80: 1400
ø100: 1500
Mounting Basic Axial foot Rod flange Head flange Single clevis Double clevis
Center
trunnion
Standard
Rod end nut
V V V V V V V
Clevis pin — — — — —
V
—
Option
Single knuckle joint
V V V V V V V
Double knuckle joint (with pin)
V V V V V V V
With rod boot
V V V V V V V
Symbol
Specifications
-XAl
Change of rod end shape
-XC3
Special port location
-XC6
Piston rod and rod end nut made of stainless steel
-XC11
Dual stroke cylinder/Single rod type
-XC14
Change of trunnion bracket mounting position
-XC15
Change of tie-rod length
-XC22
Fluororubber seal
-XC35
With coil scraper
Symbol
Rod boot material
Max. ambient temperature
J
Nylon tarpaulin 70°C
K
Heat resistant tarpaulin 110°C
*
2
B
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