Festo DMSP Series User manual

en Operating

instructions

8081494

2018-01f

[8081496]

Fluidic Muscle

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

Festo – DMSP/MAS – 2018-01f English 5

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

ÓÓ

ÓÓÓ

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

Festo – DMSP/MAS – 2018-01f English 7

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

ÓÓ

Fig. 4

DMSP/MAS

8 Festo – DMSP/MAS – 2018-01f English

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.

ÓÓ

Fig. 5

5.2 Pneumatic installation

 Connect the compressed air supply:

– DMSP: at port1

– MAS-…-K/O: at adapter (A)

ÓÓ

Fig. 6

(A) 1

DMSP/MAS

Festo – DMSP/MAS – 2018-01f English 9

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

ÓÓ

DMSP/MAS

10 Festo – DMSP/MAS – 2018-01f English

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

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