Design - SMC Networks MWB 32-UT Series Operation Manual

2-2. Design

The compatibility of the product is the responsibility of the person who designs the equipment or decides its
specifications
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W a r n i n g
- Refer to section 1-3 Precautions on model selection.
- Refer to the table below for the recommended rod dimensions.
Lock unit model
Applicable rod size *
Material
Surface treatment
Surface roughness
∗If a larger diameter rod is used; it may lead to the breakage of the inner parts of the lock unit, mounting
failure of lock unit, operation failure or a decrease in lock holding force.
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C a u t i o n
- The shape of the rod end to be inserted into the lock unit should be like those shown below so that
the lock unit seal and inner surfaces are not damaged.
面取部
Chamfer
(1) For male thread
- Do not apply excessive lateral load or external force to the lock unit. They may break the lock unit.
- Do not use the product in applications where the rod rotates.
- Do not apply loads with impact, strong vibration or rotational forces while the lock mechanism is
activated.
External impact loads, strong vibrations or rotating forces may break or reduce the life of the lock unit.
- If the piping between the lock release port and the solenoid valve for locking is long or the piping
diameter is small, the stopping accuracy of the lock unit will be decreased.
- The rod will move suddenly if the lock unit is unlocked whilst the rod is under load or if the piston
is pressurised incorrectly. If the sudden movements frequently occur in the application, make
adjustment to the air circuit or control system to prevent short life or breakage of the lock unit.
- Do not operate the product outside of the specified rod speed.
- The base oil component of grease may seep out.
The base oil of grease in the lock unit may seep out from the holding plate or cap depending on the operating
conditions (ambient temperature of 40
unit is required for use in a clean room consult with SMC.
MWB∗32 MWB∗40
Ø12 Ø16
f8 f8
30°
Fig. 2 Rod end style
o
C or more, pressurized condition, low frequency operation etc.). If the lock
- 9 -
MWB∗50 MWB∗63
Ø20
f8
Carbon steel / Stainless
Hard chrome alloy 10μm
Max. roughness Rz1.6 or less
面取部
Chamfer
(2) For female thread
MWB∗80 MWB∗100
Ø25 Ø30
f8
30°
f8