Festo DLGF, Instruction Manual

Page: 4 / 4

Maintenance accessories
Designation Part number
1)
Type
1)
DLGF­KF­20/­25
Oil gun 8041022 AZTP­S­L
Metering needle kit 8075522 AZTN­DSG
Metering needle for DLGF­20: Green,
angled 45°
Metering needle for DLGF­25: Olive,
angled 45°
Cartridge 8073523 AZLG­H1­C­10,
(Elkalub VP 922, Chemie­Technik Co.,
Vöhringen)
DLGF­KF­32/­40
Grease gun with needle­pointed
nozzle 647958 LUB­1
Lubrication adapter, angled output 8073388 LUB­1­TR­W
Lubricating grease 8073786 ELKALUB VP 922,
(Chemie­Technik, Vöhringen)
1) Spare parts catalogue
➔
www.festo.com/spareparts
Tab. 5
11 Malfunctions
11.1 Fault clearance
Fault description Cause Remedy
Irregular movement of slide One­way flow control valve not
installed correctly Choke with exhaust air as far as
possible (not with supply air).
Malfunctions in position sens­
ing Ferritic parts in the vicinity of
the proximity switch Use parts of non­magnetic
materials or maintain minimum
distances
è
7.4 Mounting accessories.
Linear actuator integrated in a
distorted manner Fasten the linear actuator to a
flat base.
Seal worn Replace wearing parts:
– Self repair with a set of
wearing parts
– Repair at Festo
Heavy leakage
Sealing band pressed/sucked
in For unpressurized linear drive:
– Loosen the tubing connec­
tion and move the slide
twice by hand through the
entire stroke (if necessary,
move fixed stops into the
end position).
– Avoid low pressure in the
piston chamber (e.g. only
move the depressurised
slide slowly).
Lack of air volume – Increase connection cross­
section.
– Place volume upstream.
Linear actuator does not
achieve the desired speed.
High friction or counteracting
force Observe limit values.
Tab. 6
11.2 Repair
Send product to the Festo repair service for repair.
12 Recycling
ENVIRONMENT!
Dispose of the packaging and product according to the valid provisions of envir­
onmentally sound recycling
è www.festo.com/sp.
13 Technical data
Size 20 25 32 40
Design Rodless drive
Mode of operation Double­acting
Cushioning Pneumatic cushioning,
Self­adjusting on both sides
Pneumatic connection M5 G1/8 G1/8 G1/4
Speed [m/s] 0.07 … 1.5
Repetition accuracy [mm] ±0.05
Mounting position Optional
Operating pressure [bar] 2 … 8 1.5 … 8
Operating medium Compressed air acc. to ISO 8573­1:2010 [7:­:­]
Size 20 25 32 40
Notes on the operating/pilot
medium Lubricated operation possible (in which case lubricated
operation will always be required)
Ambient temperature [°C] 0 … 60
Theoretical force at 6 bar [N] 188 295 483 754
Weight DLGF ‑ G
Basic weight with 0 mm
stroke [g] 590 957 1703 3234
Additional weight per 10 mm
stroke [g] 28.2 35.3 54.7 80.6
Weight DLGF ‑ KF
Basic weight with 0 mm
stroke [g] 1015 1640 2829 5585
Additional weight per 10 mm
stroke [g] 35.5 45.5 69.4 105.5
Materials
Cover, housing, rotor/slide Aluminium
Seals NBR, TPE­U (PU)
Guide band, guide (DLGF ‑ KF),
scraper
POM
Sleeve, stop Steel
Tab. 7
Size 20 25 32 40
Loading characteristics, DLGF ‑ G
Formula for combined loads:
Permitted forces and torques, DLGF
‑
G
+F
zmax
[N] 54 95 138 456
­F
zmax
[N] 98 164 276 662
M
xmax
[Nm] 0.6 1.1 1.8 7.7
M
ymax
[Nm] 2.2 4.5 7.6 37.6
M
zmax
[Nm] 0.7 1.4 2.9 11.2
Characteristic load values, DLGF
‑
KF
Formula for combined loads (load comparison factor):
Permitted forces and torques, DLGF­KF
F
ymax
[N] 600 1000 1300 1700
+F
zmax
[N] 400 700 950 1150
­F
zmax
[N] 700 1200 1600 2000
M
xmax
[Nm] 5.4 12.3 30 54
M
ymax
[Nm] 15 30 50 90
M
zmax
[Nm] 15 30 50 90
Tab. 8