SMC Networks CKZ3N Series User manual

Aluminum body reduces
weight by up to 39%
Series CKZ3N
North American type
(Complies to standard.)
Series CKZ3T
European type
Weight reduced
by up to
39%7.16kg
CKZ3N63-135LT
4.36kg
New
Unclamping angle 15° as standard
15° angle shortens clamping time and improves cycle time.
CKZ2N63-135LT
Conventional model
Power Clamp Cylinder
ø50, ø63
CAT.ES20-202A
Series CKZ3
New
New

Series CKZ3N ø50, ø63
Cover: Rubber
Equivalent to UL94 standard V0:
Flame resistant
Cover: Metal
Open/close type
metal cover
Piston
Rounded cover design reduces
weld spatter accumulation.
Metal cover as standard option
• Suitable for arc welding lines
• Protects the cylinder from
unexpected external impact.
Without switch can also
be selected as standard.
Proximity cassette installation
and removal easily accomplished
by unfastening a single bolt.
Simple arm opening angle changes.
Oval shaped piston makes
space saving possible.
Cylinder disassembly is not necessary. The arm opening
angle can be changed by replacing the stopper bolt.
Stopper bolt
North American type
Power Clamp Cylinder
New
New
New
New
New
Aluminum clamping
body adopted
Product weight reduced by up to
39%
Unclamping
Unclamping angle 15° as standard
Rc port thread as standard
Series Clamp body
Bore size Made to Order specifications
Iron
Aluminum


50

63
—
80 Cylinder port
G,NPT,Rc
G,NPT
Unclamped
opening angle
15° to 135°
30° to 135°
Proximity
switch
• TURCK
• P&F
Metal cover
Standard

Front
mounting
Standard

Without
switch
Standard

Unclamped
opening angle 15°
Standard
CKZ3N
CKZ2N
NewNew
50–135°
(Arm position:R/L)
63–135°
(Arm position:R/L)
3.17kg
4.36kg
5.06kg
7.16kg
37%
39%
CKZ2N
Reduction
rate
CKZ3N
New
Manual toggle
release point
Conventional
model
Complies to NAAMS (North American Automotive Metric Standard).
75 arm variations available.
Spatter proof construction
Bore
size
(mm)
Arm
opening
angle
–
Switch cassette
Hexagon socket head cover cap screw
Features 1

Without switch can also
be selected as standard.
Series CKZ3T ø50, ø63
European Type
Power Clamp Cylinder
New
New
New
Oval shaped piston makes
space saving possible.
Series Clamp
body
Bore size Made to Order specifications
Aluminum
Iron
Aluminum

—
—

—

—

—  —
40 50 63 80
Cylinder
port
G,NPT,Rc
G,NPT
Unclamped
opening angle
15° to 135°
30° to 135°
Proximity
switch
Small bore size (ø25)
clamp cylinder
—
With angle
adjustment
—
With manually
operated handle
—
With pneumatic
sensor
—
Metal
cover
Standard
   
Unclamped
opening angle 15°
Standard

Without
switch
Standard
CKZ3T
CKZT
NewNew
• TURCK
• P&F
New
50–135°
63–135°
3.14kg
4.34kg
5.06kg
7.16kg
37%
39%
CKZ3T CKZT
New
12 arm variations available for each size.
Spatter proof construction
Cover: Rubber
Equivalent to UL94 standard V0:
Flame resistant
Rounded cover design reduces
weld spatter accumulation.
Manual toggle
release point
Switch cassette
Hexagon socket head cover cap screw
Proximity cassette installation
and removal easily accomplished
by unfastening a single bolt.
Stopper bolt
Conventional
model
Piston
Simple arm opening angle changes.
Cylinder disassembly is not necessary. The arm opening
angle can be changed by replacing the stopper bolt.
Bore
size
(mm)
Arm
opening
angle
–
Cover: Metal
Open/close type metal cover
New
Rc port thread as standard
Metal cover as standard option
• Suitable for arc welding lines
• Protects the cylinder from
unexpected external impact.
Unclamping
Unclamping angle 15° as standard
Aluminum clamping
body adopted
Product weight reduced by up to
39%
Reduction
rate
Model Selection
CKZ3N
North American Type
Made to Order
European Type
CKZ3T
Features 2

Series CKZ3T Arm
Manual release
Either rubber cover (equivalent to V0 of UL94)
or metal cover can be selected.
Toggle link mechanism
Maintains secure and powerful support.
Proximity switch
Both TURCK and P&F switches are available.
Without switch can also be selected.
Arm
Series CKZ3N
Bumper
Reduces the effects of impact
from unclamping the cylinder.
Software
CATIA
UNIGRAPHICS
FIDES
AUTO CAD
SOLID WORKS
3D CAD Series Variations
Series
Bore size (mm)
Arm opening angle
Switch
Port thread type
ø63 Equivalentø50 Equivalent
15°, 30°, 45°, 60°, 75°
90°, 105°, 120°, 135°
TURCK/P&F
NPT/G/Rc
CKZ3N/CKZ3T
Series CKZ3N
Series CKZ3T
Power Clamp Cylinder
∗For additional formats, please log on to
the SMC web site www.smcusa.com
and click on the E-Tech icon.
Front matter 1

+0.5°
0
Figure 1
Clamping
cylinder port
Unclamping
cylinder port
Cylinder
Clamp arm
Shim
Workpiece
receptacle
side block
Clamping
block
Shim
Clamping
cylinder port
Unclamping
cylinder port
Cylinder Clamp arm
Shim
Workpiece
receptacle
side block
Clamping
block
Shim
1Common precautions for each size
1) Use air filtered through a 5-µm-element filter.
2) Before piping is connected to the power clamp cylinder it should be thoroughly flushed with air.
3) Only use the clamp arm in our catalog. Do not weld an arm to the cylinder.
4) Always use a speed controller, and set it so that it takes at least
1 second from unclamped to clamped, and at least 1 second
from clamped to unclamped.
5) This product is designed to be used after being adjusted using a
shim. For this reason, it is set to between 0° to +0.5° at the
clamping end as shown in Fig. 1.
2Power clamp cylinder mounting
 When clamping by using clamping force only
Example)
Series CKZ3N Series CKZ3T
 Mounting process
Workpiece setting Air supply Operate to the
end of clamp
Shim adjustment
B
A
Install a block
at clamp side
Shim adjustment
C
Block contact adjustment
(clamp side)
 Procedure
A) Place the workpiece, supply air at clamp side without installing clamping block, operate the clamp arm to the end of clamp.
B) Under the above conditions, adjust shim so that the space between the workpiece and the clamping block is about 0 mm.
Theoretically there is no clamping force for holding a workpiece under this condition.
C) In order to generate clamping force from the state described in step B, insert additional shim. The thickness of the shim differs
depending on the arm length and pressure, so please refer to the graph on front matter 3 as a guide. About 10% error may
occur due to the difference in tolerance of the clamp cylinder body.
Model Selection
CKZ3N
North American Type
Made to Order
European Type
CKZ3T
Front matter 2
Series CKZ3
Model Selection 1

Arm length L
AArm length L
A
Arm length L: 150 mm
0
500
1000
1500
2000
2500
3000
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
Shim thickness (mm) Shim thickness
(mm)
Clamping force (N)
0.5 MPa
0.3 MPa
0.7 MPa
0.5 MPa
0.3 MPa
0.7 MPa
Recommended
shim thickness
Recommended
shim thickness
0.7 MPa
0.5 MPa
0.3 MPa
Peak clamping
force position
Arm length L: 200 mm
0
500
1000
1500
2000
2500
3000
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
Clamping force (N)
0.7 MPa
0.5 MPa
0.3 MPa
Peak clamping
force position
2Power clamp cylinder mounting
 Relation between shim thickness and clamping force
Note) When a shim that exceeds the clamping force peak plotted on the graph is inserted, the self-locking mechanism doesn’t work.
Insert a shim with appropriate thickness.
∗Arm length “L” indicates the distance between the clamp arm shaft and the clamping position.
For distance “A” between knock positioning pinhole and clamp arm shaft, refer to the Table 1.
CKZ3T50
CKZ3T63
10
10
AModel
Table 1
CKZ3N50
CKZ3N63
5
10
AModel
Table 1
Series CKZ3N Series CKZ3T
ø50 ø63
Series CKZ3
Model Selection 2
Front matter 3

Cylinder
Arm length L
Shim w
Clamping
cylinder port
Unclamping
cylinder port
Hard stop section A
Upper hard stop
Clamping
block
Arm length L
Shim w
Clamping
cylinder port
Unclamping
cylinder port
Cylinder
Hard stop section A
Upper hard stop
Clamping
block
Shim q
Clamp arm
(Distance to a hard stop)
(Distance to a hard stop)
Clamp arm
Shim q
 When using a hard stop
 When using the side guide
Clamp arm
Side guide
2Power clamp cylinder mounting
Series CKZ3N Series CKZ3T
 Precaution
When using the side guide to the clamp arm to prevent lateral motion, make sure not to apply a lateral load or galling to the clamp
arm.
 Procedure
A) Supply air at clamp side without installation of upper hard stop, and operate the clamp arm to the end of clamp.
B) Under the above conditions, adjust shim qso that the space between the upper hard stop and the lower hard stop is about 0
mm. Theoretically there is no clamping force to the lower hard stop under this condition.
C) In order to generate clamping force from the state described in step B, insert additional shim. The thickness of the shim differs
depending on the arm length and pressure, so please refer to the graph on front matter 3 as a guide. About 10% error may occur
due to the difference in tolerance of the power clamp cylinder body.
D) Under the state described in step C, adjust shim wso there is contact between the clamping block and the workpiece.
 Mounting process
Air supply
Hard stop
set
A
Operate to the
end of clamp
Shim adjustment
B
Install the
upper hard
stop
Shim adjustment
Shim adjustment
C
Upper hard
stop contact
adjustment
Workpiece
setting
D
Block contact
adjustment
(clamp side)
Model Selection
CKZ3N
North American Type
Made to Order
European Type
CKZ3T
Front matter 4
Series CKZ3Model Selection

L
Fulcrum
W
L
Fulcrum
G
W2
W1
L
Fulcrum W
θ
θ
Allowable load for clamp arm end
Refer to the graph on front matter 6 for parts weight of the arm.
Note) The value shows parts weight only, it does not include arm
weight.
Series CKZ3T
Use the clamp arm in the catalog.
The length of the clamp arm “L” should be the length
given below or less.
Allowable load for clamp arm end
Refer to the graph on front matter 6 for parts weight of the arm.
Note) The value shows parts weight only, it does not include arm weight.
Single-side-arm type (R/L)
Use within the allowable arm end load range according to the
distance “L” from the fulcrum to the mounting tool’s center
position and the arm opening angle “θ”.
Two-side-arm type (D)
Consider the weight of allowable arm end load according to
the center position “G” of each arm end load (W1+ W2), the
distance “L” to the fulcrum and the arm opening angle “θ”.
Use within the allowable range of (W1+ W2), in this case.
CKZ3N50
CKZ3T50
CKZ3N63
CKZ3T63
150 mm
300 mm
Arm length LModel
Series CKZ3N
3Clamp arm
Clamping force (N)
operating pressure 0.5 MPa
Arm length L(mm)
5000
4000
3000
2000
1000
0350300250200150100500
ø63
ø50
Relation between clamp arm length and maximum clamping force
Series CKZ3
Model Selection 3
Front matter 5

Y
Release point
Metal coverRubber cover
Leave sufficient space in
order to release by hitting
with a plastic hammer.
Leave sufficient space
for wiring a proximity
switch.
150
MIN
Leave sufficient space to open
and close the metal cover
when operating the manual
release.
Leave sufficient space in the below position.
4Space in design
ø50 ø63
50
63
Y
132
138
Bore size
(mm)
Distance from pivot point L(mm)
150
140
130
120
110
100
90
80
70
60
50
Load capacity (kg)
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Distance from pivot point L(mm)
Load capacity (kg)
300
280
260
240
220
200
180
160
140
120
1000 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0
30°
45°
60°
75°
90°
105°
120°
135°
Arm opening
angle θ
3Clamp arm
(mm)
Model Selection
CKZ3N
North American Type
Made to Order
European Type
CKZ3T
Front matter 6
Series CKZ3Model Selection

θ
θ
Angle display
Seal washer
Head cover
Stopper bolt 135
Angle display
Hexagon socket head cap screw
Detection plate
A
Switch cassette mounting bolt
Switch cassette
9 types of arm opening angles (unclamping angles) 15°, 30°, 45°, 60°, 75°, 90°, 105°, 120° and 135° are available for each standard size.
 Arm opening angle change procedure
1) When changing the arm opening angle, be sure to operate the cylinder to the clamping end, and confirm that the air inside the
cylinder has been exhausted.
2) Loosen the switch cassette mounting screw, and remove the switch cassette.
3) Remove the hexagon socket head cap screw (part A), and change the position of the screw to the required angle position, and
tighten it to the tightening torque shown below.
4) Mount the switch cassette to the body, and tighten the switch cassette mounting bolt to the tightening torque shown below.
When mounting the clamping arm in a vertical clamping position, note that the maximum angle will change.
5) Remove the stopper bolt of the head cover, and mount a different stopper bolt for other angles using the tightening torque below.
When replacing the stopper bolt, fix the head cover securely. If the stopper bolt is replaced without fixing the head cover, the
head cover may be displaced, causing air leakage. (Confirm the direction of the angle display.)
For the applicable stopper bolt part numbers, refer to page 4 for CKZ3N, and page 15 for CKZ3T.
Switch cassette
mounting bolt
Description Bore size
(mm)
Tightening torque
(N·m)
50
63
50
63
0.6 to 1.0
0.6 to 1.0
2.6 to 3.5
2.6 to 3.5
Stopper bolt
Description Bore size
(mm)
Tightening torque
(N·m)
50
63
130 to 150
160 to 200
CKZ3T50
CKZ3T63
Model Type A Type B
75°
60°
105°
105°
Maximum angle θ
Type BType A
5Arm opening angle change
6Vertical clamping (CKZ3T only)
Hexagon socket head
cap screw
Series CKZ3
Model Selection 4
Front matter 7