SMC Networks CUJ Series Manual page 25

Series
Specific Product Precautions 1
Be sure to read before handling.
Refer to pages 15 through 21 for safety instructions, actuator precautions and auto switch precautions.
Mounting
Caution
When mounting a mini free-mount cylinder, tighten the
bolts with the proper tightening torque.
Bolt
CUJB4 M2.5 x 0.45
C(D)UJB6
C(D)UJB8 M3 x 0.5
C(D)UJB10
Tightening torque
Allowable Kinetic Energy
Caution
When driving an inertial load, operate a cylinder with
kinetic energy within the allowable value. The range in
the chart below that is delineated by bold solid lines
indicates the relation between load weights and
maximum driving speeds.
4
Bore size (mm)
Operating piston speed (m/s)
3.8 x 10
Allowable kinetic energy (J)
10
ø10
ø8
1
ø6
ø4
0.1
0.01
0.01
Maximum speed V (m/s)
CUJ
⋅
Proper tightening torque N m
0.54
1.06
Tightening torque
6 8 10
0.05 to 0.5
-3 -3 -3
6.25 x 10 9.35 x 10 12.5 x 10
0.1 1.0
Strictly observe the limiting range of lateral load on a piston
rod. (See the graphs below.) If this product is used beyond
the limits, it may shorten the machine life or cause damage.
With auto switch
ø10
0.5
0.4
ø8
0.3
0.2
ø6
0.1
0 4 6 8 10
Stroke ST (mm)
-3
Selection
Without auto switch
ø10
0.4
0.3
ø8
0.2
ø6
0.1
ø4
15 20 0 4 6 8 10
Stroke ST (mm)
15 20
22