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1. Product Specifications
1-1. Lock unit specification
Lock unit model
Applicable rod size mm *2
Locking operation type
Fluid
Proof pressure
Max. operating pressure
Min. operating pressure
Ambient and fluid temperature
Operating fluid temperature
Lubrication
Rod speed mm/s
Locking direction
Holding force
(Maximum static load)(N) *1
Port size (Rc, NPT, G)
Mounting type
*1 The holding force (max. static load) shows the maximum capability and does not show the normal holding capability.
Choose the cylinder based on the Selection graph (Page 6 and 7).
*2 Applicable rod size affects holding force. Ensure the rod used is the appropriate size as shown in the table above.
For the shape of the inserted rod, refer to Fig.2 Rod end style.
1-2. Stop accuracy
Lock unit model
Stop accuracy
Conditions
(Used with
air cylinder)
！
W a r n i n g
・Confirm the specifications.
This product is designed only for use in compressed air systems including vacuum. Do not operate at
pressures or temperatures outside of the specification, as this could cause damage or malfunction (Refer
to the specifications.)
Please contact SMC if using fluids other than compressed air (including vacuum) generated by air
compressor.
SMC does not guarantee against any damage if the product is used outside of the specification range.
MWB∗32-UT
Ø12 f8
630
MWB*32
MWB*40
・Mounting orientation ･･･ Horizontal
・Supply pressure ･･･ 0.5MPa
・Piston speed ･･･ 300mm/s
・Load condition ･･･ Upper limit of allowable value
Solenoid valve for lock
Value shown is based on testing and the largest
value is quoted. (Test repeated 100 times)
MWB∗40-UT
MWB∗50-UT
Ø16 f8
Ø20 f8
Exhaust locking
1.5MPa
1.0MPa
0.3MPa
-10℃～70℃ (No freezing)
Not required (non-lube)
～1000
Both directions
980
1570
1/8
Basic type, axial foot type, flange type
MWB*50
MWB*63
±1.0mm
Mounted to the lock release port
- 5 -
MWB∗63-UT
MWB∗80-UT
Ø20 f8
Ø25 f8
Air
2450
3920
1/4
MWB*80
MWB∗100-UT
Ø30 f8
6080
MWB*100
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