MWB#-TF2Z418EN
Page 1 of 3
Instruction Manual
MWB-X3075, MWB-X3246 & MWB-UT-X3075
series
Cylinder with Lock/Brake: MWB-X3075/X3246
Lock
Brake
Lock/Brake Unit: MWB-UT-X3075
Lock
Brake
The intended use of the lock/brake unit is to be used as an individual
product and integrated into an MWB cylinder for intermediate stop,
emergency stop and drop prevention.
1 Safety Instructions
These safety instructions are intended to prevent hazardous situations
and/or equipment damage. These instructions indicate the level of
potential hazard with the labels of
“Caution,” “Warning” or “Danger.”
They are all important notes for safety and must be followed in addition
to International Standards (ISO/IEC)
*1)
, and other safety regulations.
*1)
ISO 4414: Pneumatic fluid power - General rules relating to systems.
ISO 4413: Hydraulic fluid power - General rules relating to systems.
IEC 60204-1: Safety of machinery - Electrical equipment of machines.
(Part 1: General requirements)
ISO 10218-1: Manipulating industrial robots -Safety. etc.
Refer to product catalogue, drawings, Operation Manual and Handling
Precautions for SMC Products for additional information.
Keep this manual in a safe place.
Caution
Caution indicates a hazard with a low level of risk which, if
not avoided, could result in minor or moderate injury.
Warning
Warning indicates a hazard with a medium level of risk
which, if not avoided, could result in death or serious injury.
Danger
Danger indicates a hazard with a high level of risk which, if
not avoided, will result in death or serious injury.
Warning
Always ensure compliance with relevant safety laws and
standards.
Only personnel with appropriate training should operate
machinery and equipment.
The product specified here may become unsafe if handled incorrectly.
The assembly, operation and maintenance of machines or equipment
including our products must be performed by an operator who is
appropriately trained and experienced.
This cylinder with lock or the separate lock unit employs an exhaust
locking system. Sudden braking will occur, if the air supply to the
locking unit is lost or becomes lower than the minimum operating
pressure.
2 Specifications
2.1 Cylinder Specifications
Bore size [mm]
32
40
50
63
80
100
Action
Double acting
Fluid
Air
1
Proof pressure
1.5 MPa
Max. operating
pressure
1.0 MPa
Min. operating
pressure
0.08 MPa
Ambient and
fluid
temperatures
Without auto switch: −10°C to 70°C (No freezing)
With auto switch: −10°C to 60°C
Lubricant
Not required (Non-lube)
Piston speed
50 to 1000 mm/s
2
Stroke length
tolerance
~250st:
+1.0
0
, 251~1,000st:
+1.4
0
Cushion
Air cushion
Port size
(Rc, NPT, G)
1/8
1/4
3/8
1/2
Mounting
Basic type
1
Select an air filter with a filtration size of 5μm or smaller. For detailed
information please refer to the operation manual.
2
Load limits exist depending upon the piston speed when locked,
mounting direction, and operating pressure.
2.2 Lock Unit Specifications
Bore size
[mm]
32
40
50
63
80
100
Locking
action
Exhaust locking
Max.
operating
pressure
1.0 MPa
Min.
operating
pressure
0.3 MPa
Locking
direction
Both directions
Holding force
(Max. static
load)[N]
1
630
980
1570
2450
3920
6080
This locking unit does not have manual lock release.
*
1
The holding force (max static load) shows the maximum capability and
does not show the normal holding capacity. Select a cylinder using the
method described in Model Selection in MWB catalogue or operation
manual.
2.3 Stopping Accuracy
Bore size [mm]
32
40
50
63
80
100
Lock type
Exhaust Locking
Stopping
accuracy [mm]
±1.0
Conditions
Mounting orientation: Horizontal
Supply pressure: 0.5 MPa
Piston speed: 300 mm/s
Load condition: Upper limit of allowed value
Solenoid valve for locking is mounted on the unlock port.
Maximum value of stopping position dispersion from 100 measurements
2.4 Overrun distance (All bore sizes)
1) 2) 3)
Overrun distance s [mm] after venting the lock unit to standstill at
vertical mounting position as a function of speed v [mm/s] at 0.6 MPa.
2.4.1 Ø32mm
2.4.2 Ø40mm
2.4.3 Ø50mm
2.4.4 Ø63mm
2.4.5 Ø80mm
2.4.6 Ø100mm
1)
Overrun distance for all bore sizes are validated according to ISO
13849-2. It is allowed to brake at every intermediate position. The
actual overrun distances should be determined in the actual application.
2)
When testing overrun distance in the actual application, perform
safely, observing your national laws.
3)
The brake is specified for operation up to the kinetic energy limit for
the cylinder as shown in the catalogue and indicated in the graph by the
solid line. The brake has the capacity to stop the piston in emergency
situations up to twice the velocity as shown by the dotted line.
3 Installation
Warning
Do not install the product unless the safety instructions in the MWB
operation manual have been read and understood. Refer to the MWB
operation manual for details of the installation method and precautions.
3.1 Environment
Warning
Do not use in an environment having corrosive gases, chemicals, sea
water, water, water steam, or where there is direct contact with any of
these.
Do not expose to direct sunlight and block the sunlight.
Do not use in a location subject to vibration or impact.
Do not use in a location close to a heat source and exposed to radiant
heat.
Use a suitable cover on the rod, if used in such locations where dust
is present or water or oil may be splashed.
3.2 Piping
Caution
Before connecting piping make sure to clean up chips, cutting oil, dust
etc.
When installing piping or fittings, ensure sealant material does not
enter inside the port. When using seal tape, leave 1 thread exposed
on the end of the pipe/fitting.
3.3 Lubrication
Caution
SMC products have been lubricated for life at manufacture, and do not
require lubrication in service.
If a lubricant is used in the system, apply the lubricant following
instructions in the MWB catalogue.
3.4 Mounting
Caution
Do not apply eccentric load to the piston rod.
Alignment of the centre of gravity of the load and the centre of the
cylinder is necessary. When there is a large amount of misalignment,
eccentric wear or damage of the piston rod
can
result due to the
moment of inertia caused by the stopping impact when locking.
ORIGINAL INSTRUCTIONS
