Festo DMSP Series User manual

en Operating
instructions
8081494
2018-01f
[8081496]
Fluidic Muscle
DMSP/MAS

DMSP/MAS
2Festo – DMSP/MAS – 2018-01f
Translation of the original instructions
Symbols: Installation and commissioning may only be per
formed in accordance with these instructions by
technicians with appropriate qualifications.
Warning
Caution
Note
Environment
Accessories
English 3.........................................................................

DMSP/MAS
Festo – DMSP/MAS – 2018-01f English 3
English – Fluidic Muscle DMSP/MAS
Table of contents
1 Configuration 4............................................................
2 Safety 5..................................................................
2.1 Intended use 5.............................................................
2.2 General safety instructions 5..................................................
2.3 Qualified personnel 5........................................................
3 Function 6................................................................
4 Storage 6.................................................................
5 Installation 7..............................................................
5.1 Mechanical installation 7.....................................................
5.2 Pneumatic installation 8.....................................................
6 Commissioning 9...........................................................
6.1 Test run 9.................................................................
7 Operation 10...............................................................
8 Maintenance and care 11.....................................................
9 Disassembly and repair 11....................................................
10 Disposal 11................................................................
11 Accessories 11..............................................................
12 Fault clearance 12...........................................................
13 Technical data 13............................................................
14 Characteristic curves 14......................................................

DMSP/MAS
4 Festo – DMSP/MAS – 2018-01f English
Documentation on the product
For all available product documentation èwww.festo.com/pk
1 Configuration
DMSP MAS-…-K/O
1342 5 647
1Thread for supply port (only for DMSP)
2Connecting thread (only for DMSP)
3Connecting flange with press-form sleeve
(only for DMSP)
4Contracting diaphragm (fibre-reinforced rub
ber tubing)
5Thread for connecting adapter (only for
MAS-…-K/O)
– for MAS-…-MOopen on both sides
– for MAS-…-MCopen on one side
6Force limiter inside the connecting flange
(only for MAS-…-K)
7Connecting flange with external hexagon
(only for MAS-…-K/O)
Fig. 1

DMSP/MAS
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2 Safety
2.1 Intended use
The fluidic muscle DMSP/MAS is intended for the following use:
– lifting and lowering of loads
– vibration and shaking applications
– transmission of force (e.g. clamping of two plates)
– use as pneumatic spring
The DMSP/MAS is a pure tensile actuator that has no internal guide. The tensile force is maximum at the
start of the contraction and then declines to zero with the stroke in a degressive manner. The expansion in
the peripheral direction cannot be used for clamping tasks, since the friction can cause damage to the dia
phragm.
The product is used for rough positioning of payloads in combination with tools or as a drive when ex
ternal guides are used.
The product is not approved for operating conditions in which vegetable and water-soluble greases or
oils can penetrate.
2.2 General safety instructions
Warning
People can be injured by the sudden release of pneumatic forces or catapulted compon
ents.
 Take the great potential energy into account with all work on the pressurized
DMSP/MAS. A sudden release of this energy (e.g. through bursting of the contract
ing diaphragm due to incorrectly stressing it) can fling individual parts of the
DMSP/MAS with very great acceleration.
 Take into consideration the legal regulations for the respective location.
 Only use the product if it is in its original status and in an excellent technical status.
 Use the product only within the defined values (è13 Technical data and 14 Characteristic curves).
 Do not make any unauthorised modifications to the product.
 Take into consideration the ambient conditions at the location of use.
2.3 Qualified personnel
Only qualified personnel may perform installation, commissioning, maintenance and disassembly of the
product. The qualified personnel must be familiar with installation of pneumatic systems.

DMSP/MAS
6 Festo – DMSP/MAS – 2018-01f English
3 Function
Through pressurisation, the contraction membrane3of the DMSP/
MAS expands in the direction of the periphery. This creates tensile force
and a contraction motion in the longitudinal direction.
The DMSP/MAS is single-acting. Movement is transferred to the pay
load with the aid of connecting elements (è11 Accessories), which
are screwed into thread 1. For the DMSP, the adapter is already integ
rated.
A force limiter is integrated into the connecting flange2of the
MAS-…-K. If the limit of the force limiter is exceeded, a valve dis
charges the excess compressed air.
Fig. 2
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4 Storage
Unfavourable storage conditions can impair operational reliability.
 Ensure that the following points are complied with in storage:
– Do not store DMSP/MAS in a kinked condition
– Protect it from UV radiation (leave it in the protective sleeve until use)
– Store with low humidity (60%)
– Avoid high temperatures (max.+30°C)
 Protect product in storage from damaging influences.
Damaging influences include:
– corrosive coolant or other materials (e.g. ozone)
– oils, greases and grease-solvent vapours
– glowing chips or sparks

DMSP/MAS
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5 Installation
5.1 Mechanical installation
Note
Certain mechanical stresses on the contracting
membrane reduce the service life of the DMSP/
MAS.
 Ensure that the membrane always
– remains free from torsion
– is mounted remains unkinked (uncom
pressed) even when unpressurized (no
folding)
DMSP 5 10 20 40
Connecting thread6
DMSP-…-AM M8 M16x1.5 M20x1.5 M30x1.5
DMSP-…-CF M4 – – –
DMSP-…-CM/-RM M6 M8 M10x1.25 M16x1.5
Recommended through-holes [H12]
DMSP-…-AM 8.4 mm 17 mm 21mm 31mm
DMSP-…-CF 4.3mm – – –
DMSP-…-CM/-RM 6.4 mm 8.4 mm 10.5 mm 17 mm
Max. tightening torque1)
DMSP-…-AM 7…10 Nm 15…19 Nm 23…28 Nm 100…110 Nm
DMSP-…-CF 2,5…3 Nm –––
DMSP-…-CM/-RM 4…6 Nm 7…10 Nm 12…16 Nm 50…55 Nm
1) Secured with Loctite 222 (DMSP-10) / Loctite 242 (DMSP-20/40)
Tab. 1
Note on MAS-10
If the thread on the MXAC connecting adapter is
too long, this can damage the connecting thread
of the MAS-10-…-O(without force limiter).
 Make sure that the connecting thread
lengths of adapter and MAS fit each other
(èTab. 2).
Fig. 3
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Fig. 4
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DMSP/MAS
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1. Lightly grease the thread of the connecting adapter. This reduces the mounting forces.
2. Screw the connecting adapter (è11 Accessories) into the mounting thread of the MAS5.
MAS 10 20 40
Thread1
Open M10x1.25 M16x1.5 M20x1.5
Closed M10x1.25 M10x1.25 M16x1.5
Connecting thread length
MAS-…-MO-K 15 mm 24 mm 30 mm
MAS-…-MC-K 15 mm 15 mm 24 mm
MAS-…-MO-O 10 mm 26 mm 22 mm
MAS-…-MC-O 10 mm 15 mm 20 mm
Adapter thread length
MXAC- (old) 15 mm1) 24 mm 30 mm
MXAD- (new) 10 mm 18 mm 20 mm
Max. permitted tightening
torque
8…13 Nm 15…25 Nm 35…45 Nm
1) If used with the old adapter MXAC-R10, the MAS-10-...-O-... (with force limiter) will be damaged.
Tab. 2
3. When placing the moveable mass, make sure that the fol
lowing specifications are fulfilled:
– permissible parallelism tolerance of the connections
– permissible angle tolerance
– permissible pretensioning
– maximum permissible values for forces and applied loads
Take permissible values from the technical data (è13) and
the Characteristic curves (è14).
4. Fasten the payload using the adapter so that the payload
centre of mass is aligned with the central shaft.
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Fig. 5
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5.2 Pneumatic installation
 Connect the compressed air supply:
– DMSP: at port1
– MAS-…-K/O: at adapter (A)
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Fig. 6
(A) 1

DMSP/MAS
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6 Commissioning
Warning
Unexpected movement of components.
Injury due to impact or pinching.
 Protect positioning range from manipulation
(e.g. with protective guards).
 Make sure that no foreign objects are
present in the work range.
For MAS-…-Kwith force limiter:
Note
If the limit of the force limiter is exceeded, the safety function of the MAS-…-K is
triggered.
 Make sure that all forces lie within the permissible range (è13 Technical data).
If the maximum permissible force is exceeded, compressed air escapes at the connect
ing flange of the MAS-…-K. As soon as the maximum permissible force is complied with,
the MAS-…-K is ready for operation again.
6.1 Test run
1. Slowly pressurize DMSP/MAS (e.g. with soft-start valve HEL).
2. Check the following points at the DMSP/MAS:
– The required motion sequence is complied with.
– Contraction takes place within the permissible tolerance (max. 25 % of the nominal length).
– The required force is reached/the load is lifted.
– No leakage occurs.
3. End the test run.
4. Vent the fluidic muscle.
Fig. 7
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DMSP/MAS
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7 Operation
Note
Extreme conditions place stress on the DMSP/MAS.
The following factors lead to a strong reduction in the service life c(èFig. 8):
– increasing contraction h
– rising applied load m
– rising ambient or operating temperature
Through targeted application of pressure to one side and exhausting on the other side
(“rinsing”), the thermal stressing of the components can be reduced and the service life
of the product increased (not for DMSP-…-CM and MAS-…-MC).
m = 0
m = max
c [n]
h [%]
0 5 10 15 20 25 30
Fig. 8
 Protect product during operation from damaging influences. These influences include:
– corrosive coolant or other materials (e.g. ozone)
– oils, greases and grease-solvent vapours
– glowing chips or sparks