Festo DGO-xxx-A-B series User manual

(en) Operating
instructions
Pneumatic linear drive
DGO-...-A-B
8074779
2017-10c
[8074781]

DGO-...-A-B
Festo DGO-...-A-B 2017-10c
2
Original instructions
Symbols: Fitting and commissioning to be carried out
by qualified personnel only in accordance
with the operating instructions.
Warning, Caution
Please note
Antipollution
Accessories
English 3.......................................................................

DGO-...-A-B
Festo DGO-...-A-B 2017-10c English 3
Pneumatic linear drive
DGO-...-A-BEnglish
Documentation on the product
For all available product documentation èwww.festo.com/pk
1 Operating parts and connections
123
456
1Fastening thread
2Compressed air port
3Thread for fastening the work load
4Lubricating nipple
5Integrated switching magnet
6Adjusting screw for end position cushioning
(not with DGO-12-...)
Fig. 1

DGO-...-A-B
Festo DGO-...-A-B 2017-10c English
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2 Function
When the compressed air ports are pressurized alternately, the piston moves back
wards and forwards in the tubing. By means of a magnet coupling this movement
is transferred to the outer slide.
3 Application
The DGO-... has been designed for transporting mass loads.
4 Transport and storage
SConsider the weight of the product.
Depending on the design, the DGO-...
weighs over 10 kg.
Fig. 2

DGO-...-A-B
Festo DGO-...-A-B 2017-10c English 5
5 Conditions of use
Please note
Malfunctions will occur if the device is not used correctly.
SEnsure that the specifications in this chapter are always observed.
SCompare the maximum values specified in
these operating instructions with your
actual application (e.g. forces, torques,
temperatures, masses).
The product can only be operated in
accordance with the relevant safety
guidelines if the maximum loading limits
are observed.
SObserve the ambient conditions at your location.
Corrosive elements in the environment (e.g. ozone) will reduce the service life
of the product.
SPlease comply with national and local safety laws and regulations.
SUse the product in its original state. Unauthorized modification is not
permitted.
SRemove all transport packing such as foils, caps, cardboard.
Exceptions: adhesive labels on compressed air ports (danger of dirt entering
the tubing)
The packing is intended for recycling (except for: oiled paper which must be
disposed of).
SMake sure there is a supply of correctly
prepared compressed air (see “Technical
specifications”).
Fig. 3
[%] [mbar][°C]
LF-... LR-...
Fig. 4

DGO-...-A-B
Festo DGO-...-A-B 2017-10c English
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6 Fitting
Fitting mechanical components
SAvoid damaging the cylinder barrel.
Damage to the cylinder barrel will reduce
the reliability and the service life of the
DGO-...
SPlace the DGO-... so that all the operating
parts are accessible (lubricating nipple,
adjusting screws).
SMake sure that the drive is fitted free of
mechanical stress and distortion.
When the drive is fitted in a vertical position:
SMake sure that the slide has reached a stable position when it comes to a
stand (e.g. the lowest point or secure it with a moveable bolt).
Work loads with their own guide:
Please note
Jamming and non-permitted bending, e.g. due to tilting torques, reduce the
service life of the DGO-....
The max. permitted misalignment of parallel guiding is 1 mm.
SMake sure that a degree of freedom is maintained between the slide and the
work load.
Driver type FKG-... can be used for this purpose. (see chapter “Accessories”).
Fig. 5
Fig. 6
Ó
Ó
Ó
Ó
Ó
Fig. 7

DGO-...-A-B
Festo DGO-...-A-B 2017-10c English 7
Fitting the work load:
SPlace the work load so that the tilting torque of force Fax parallel to the
movement axis and lever arm “a” remains low (see Fig. 8).
SObserve the maximum values for radial force Frad (see Fig. 8).
150
200
500
1000
100
50
30
20
10
Fax
a [mm]
Fax [N]
H [mm]
H
Frad
a
Frad [N]
DGO-12
DGO-16
DGO-20
DGO-25
DGO-32
DGO-40
Fig. 8

DGO-...-A-B
Festo DGO-...-A-B 2017-10c English
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With heavy work loads or at high and medium slide speeds:
SMake sure that the impulse of the load and the speed lies within the permitted
range.
Depending on the size of the work mass, the DGO-... will withstand maximum
speeds as shown in the following diagram:
m [kg]
vver
[m/s]
vhor
[m/s]
m [kg]
Fig. 9
Loadings in excess of the specified maximum values:
Use additional external shock absorbers or fixed stops of sufficient size.

DGO-...-A-B
Festo DGO-...-A-B 2017-10c English 9
Fitting proximity switches:
SPlace the proximity switches so that they can be actuated reliably by the
magnet.
In the following example the proximity switches are fitted onto a rod
(dia. 6 mm) with the aid of fastening kit SMB-1.
1
X
A
1
SwitchingPos
23
1Magnet
2Switching range
3Proximity switches
Fig. 10
SAlways place the proximity switches in the gaps A and X.
– If the gap is too small, this may lead to multiple switching.
– If the gap is too large, the switch will not be actuated reliably.
AX (+0.5 mm) Switch.
path
Hystere
sis
12 18 20 25 32 40
SMEO-1,
SMTO-1
6 ... 8
mm
10.5
mm
13.5
mm
16.5
mm
20.5
mm
25.5
mm
32.5
mm
7,5 ...
13 mm
1 ... 4.5
mm
SMPO-1-H-B 5 ... 6
mm
7…15
mm
0,4 ... 2.5
mm
Fig. 11: Gaps for proximity switches

DGO-...-A-B
Festo DGO-...-A-B 2017-10c English
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Fitting pneumatic components
Fitting in a vertical or sloping position:
Warning
If there is a pressure failure, the work mass will slide down.
Uncontrolled moving masses can cause injury to people or damage to property
(danger of fingers being squashed).
SCheck whether non-return valves (with control) of type HGL-... are required
here. In this way, you can prevent the work mass from sliding down suddenly.
(work mass = slide mass + mass of the work load)
Setting the slide speed:
SScrew one-way flow control valves of type GRLA-... into the compressed air
ports.
Other accessories with excessive screw depth L will damage the internal slide
of the DGO-.... Fig. 12 shows the maximum screw depth:
DGO-... 16 20 25 32 40
Lmax 4.8 mm 8 mm 7 mm 9 mm 10 mm
Fig. 12: Maximum screw depth Lmax of the compressed air ports
Controlling the DGO-...:
SUse 3/2-way valves (in basic position
open) for both compressed air ports.
Fig. 13