Handling
Stroke adjusting unit
holding bolt
Stroke adjusting unit
holding bolt
Shock absorber
Shock absorber
lock nut
Shock absorber
Shock absorber
holding bolt
MY2H16,
H unit
MY2C unit
For MY2HT
Shock absorber
Stroke adjusting unit
holding bolt
MY2HT
1. Do not unnecessarily alter the guide adjustment setting.
The adjustment of the guide is preset and does not require re-
adjustment under normal operating conditions. Therefore, do
not unnecessarily alter the guide adjustment setting.
2. Avoid operation that causes negative pressure in-
side the cylinder.
Take precautions under operating conditions in which negative
pressure is increased inside the cylinder by external forces or iner-
tial forces. Air leakage may occur due to separation of the seal belt.
3. Do not get your hands caught during cylinder operation.
For the cylinder with a stroke adjusting unit, the space be-
tween the slide table and stroke adjusting unit is very small,
and your hands may get caught. When operating without a
protective cover, be careful not to get your hands caught.
4. Do not operate with the stroke adjusting unit fixed
in an intermediate position.
When the stroke adjusting unit is fixed in an intermediate posi-
tion, slippage can occur depending on the amount of energy
released at the time of an impact. In such cases, the use of
the adjusting bolt mounting brackets, available per made-to-or-
der specifications -X416 and -X417, is recommended.
For other lengths, please consult with SMC.
<Securing the unit body>
The unit body is secured by equally tightening the two stroke
adjusting unit holding bolts. (See drawings below.)
<Stroke adjustment of shock absorber>
For MY2C and MY2H
Loosen the shock absorber lock nut (shock absorber holding
bolts for MY2H16, H unit), and adjust the stroke by rotating the
shock absorber. After the adjustment, tighten the lock nut
(holding bolts) to secure the shock absorber.
Caution
11. Do not mount cylinders as they are twisted.
When mounting, be sure for a cylinder tube not to be twisted.
The flatness of the mounting surface is not appropriate, the
cylinder tube is twisted, which may cause air leakage due to
the detachment of a seal belt, damage a dust seal band, and
cause malfunctions.
12. Do not mount a slide table on the fixed equipment
surface.
It may cause damage or malfunctions since an excessive load
is applied to the bearing.
13.Consult with SMC when mounting in a cantilevered
way.
Since the cylinder body deflects, it may cause malfunctions.
Please consult with SMC when using it this way.
14. Fixed parts of the cylinder on both ends must have
at least 5 mm of contact between where the bottom
of the cylinder tube and the equipment surface.
15 .Consider uncalculated loads such as piping,
cableveyor, etc., when selecting a load moment
Calculation does not include the external acting force of
piping, cableveyor, etc. Select load factors taking into
account the external acting force of piping, cableveyor, etc.
Caution
Mounting
Bore size (mm)
Tightening torque
16
25
40
0.7
1.8
5.8
Tightening torque for stroke adjusting
unit holding bolts
N·m
Head cover
Cylinder tube
Slide table
Mounting with a slide table (slider)
Head cover
Slide table
Cylinder tube
Mounting in a cantilevered way
Head cover
5 mm or
more
5 mm or
more
Slide table
Cylinder tube
Loosen the two unit holding bolts on the shock absorber side,
rotate the shock absorber and adjust the stroke. After the ad-
justment, secure the shock absorber by tightening the unit
holding bolts equally.
Series
MY2
Specific Product Precautions 3
Be sure to read before handling. Refer to front matters 54 and 55 for Safety Instructions
and pages 3 to 11 for Actuator and Auto Switch Precautions.
1117
MY3A
MY3B
MY1B
MY1M
MY1C
MY1H
MY1HT
MY1
W
MY2C
MY2H
MY3M
Individual
-X
D-
-X
Technical
data
P1057-P1120-E.qxd 08.10.3 2:27 PM Page 1117
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com