Front matter 3
Buffer time (s)
Operating pressure (MPa)
0.1 0.2 0.3 0.4 0.5 0.6
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
Buffer time (s)
Operating pressure (MPa)
0.1 0.2 0.3 0.4 0.5 0.6
0.5
0.4
0.3
0.2
0.1
0.0
Buffer time (s)
Operating pressure (MPa)
0.1 0.2 0.3 0.4 0.5 0.6
0.5
0.4
0.3
0.2
0.1
0.0
Buffer time (s)
Operating pressure (MPa)
0.1 0.2 0.3 0.4 0.5 0.6
0.5
0.4
0.3
0.2
0.1
0.0
Buffer time (s)
Operating pressure (MPa)
0.1 0.2 0.3 0.4 0.5 0.6
0.5
0.4
0.3
0.2
0.1
0.0
Buffer time (s)
Operating pressure (MPa)
0.1 0.2 0.3 0.4 0.5 0.6
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
Buffer time (s)
Operating pressure (MPa)
0.1 0.2 0.3 0.4 0.5 0.6
0.5
0.4
0.3
0.2
0.1
0.0
Buffer time (s)
Operating pressure (MPa)
0.1 0.2 0.3 0.4 0.5 0.6
0.5
0.4
0.3
0.2
0.1
0.0
Buffer time (s)
Operating pressure (MPa)
0.1 0.2 0.3 0.4 0.5 0.6
0.5
0.4
0.3
0.2
0.1
0.0
Buffer time (s)
Operating pressure (MPa)
0.1 0.2 0.3 0.4 0.5 0.6
0.5
0.4
0.3
0.2
0.1
0.0
∗Buffer time: The time from when the product hits the rod end of the shock absorber to when the shock
absorber reaches its retracted position.
MXQR8 Extension Stroke End
MXQR12 Extension Stroke End
MXQR16 Extension Stroke End
MXQR20 Extension Stroke End
MXQR25 Extension Stroke End
MXQR8 Retraction Stroke End
MXQR12 Retraction Stroke End
MXQR16 Retraction Stroke End
MXQR20 Retraction Stroke End
MXQR25 Retraction Stroke End
Test conditions
Workpiece weight: Approx. 70% of maximum dynamic load
Speed : Average speed with the fitting directly mounted (Approx. 300 to 500 mm/s
depending on the bore size and operating pressure)
Note) The buffer time depends on the operating conditions
(dynamic load, moment, piston speed and operating
pressure and temperature).
RB
RB
RB
RB
RB
RB
RJ short
stroke type
RJ short
stroke type
RJ short
stroke type
RJ short
stroke type
RJ short
stroke type
RJ short
stroke type
RJ short
stroke type
RB
RJ short
stroke type
RB
RJ short
stroke type
RB
RJ short
stroke type
RB
Adjuster Option: Shock Absorber Buffer Time (Reference Values)
Selection
Caution
1. Operate loads within the range of the
operating limits.
Select the model considering maximum allowable load
and allowable moment. Refer to front matters 1 and 2
for the details. When actuator is used outside of
operating limits, eccentric loads on guide will be in
excess of this causing vibration on guide, inaccuracy,
and shortened life.
2. If intermediate stops by external stopper is
done, avoid ejection.
If lurching occurs damage can result. When making a
stop with an external stopper to be followed by
continued forward movement, first supply pressure to
momentarily reverse the table, then retract the
intermediate stopper, and finally apply pressure to the
opposite port to operate the table again.
Operating Environment
Caution
1. Do not use in the environment, where the
product could be exposed to the liquid such
as cutting oil, etc.
Using in the environment where the product could be
exposed to cutting oil, coolant or oil, etc. could result in
looseness, increased operating resistance, or air
leakage, etc.
2. Do not use in the environment, where the
product could be exposed directly to the
foreign matters such as powder dust, blown
dust, cutting chip, spatter, etc.
This could result in looseness and increased operating
resistance, and air leakage, etc.
Please consult with SMC regarding use in this kind of
environment.
3. Use caution for the anti-corrosiveness of
linear guide section.
Martensitic stainless steel is used for the table and
guide block. But, use caution that anti-corrosiveness is
inferior to the austenitic stainless steel. Especially, rust
may be generated in an environment where waterdrops
are likely to adhere due to condensation, etc.
Series MXQR
