Specifications

2
Type
Fluid
Proof pressure
Maximum operating pressure
Minimum operating pressure
Rod end thread
Rod end thread tolerance
Stroke length tolerance
Piston speed
Specifications
Pneumatic (non-lube) type
Air
1.0MPa
0.7MPa
0.08MPa
Without auto switch: –10°C to 70°C (with no freezing)
With auto switch: –10°C to 60°C (with no freezing)
Male threads
JIS class 2
50 to 500mm/s
Ambient and
fluid temperature
Theoretical Output
Standard Strokes
Standard strokes (mm)
20, 30, 40, 50, 60, 70, 80, 90, 100
Bore sizes (mm)
20, 25, 32
Bore size (mm) Operating direction
Operating pressure (MPa)
OUT
IN
OUT
IN
OUT
IN
20
25
32
Unit: N
+ 1.0
0
0.3
94.2
79.2
147
124
241
207
0.5
157
132
246
206
402
346
0.7
220
185
344
288
563
454
OUT IN
Bore size (mm)
Effective cushion length (mm)
Effective Cushion Length
Allowable kinetic energy
20
6.6
25
6.7
32
7.7
Free-Mounting Cylinder with Air Cushion Series CU
Weights
Basic weight
Additional weight
Bore size (mm)
Standard stroke (mm)
20
25
32
Unit: g
20
186
289
464
30
208
323
512
40
230
357
560
50
252
391
608
60
274
425
656
70
296
459
704
80
318
493
752
90
340
527
800
100
362
561
848
Bore size (mm)
20
25
32
Unit: g
Magnet
5
6
11
Tightening torque:
20, 25
32
Bore sizes
(mm)
Hexagon socket
head cap screw
size (mm)
Proper tightening
torque (N⋅m)
M5
M6
5.10 ±10%
8.04 ±10%
∗ Intermediate strokes are also available upon receipt of order. Contact SMC.
Minimum stroke length is 20mm.
Refer to "Selection" on page 19
regarding allowable kinetic energy.
Refer to the below table
for mounting Series CU.