Festo DGC-8 ... 63-... - Manual (Page 5)

DGC-8 ... 63-...
Festo AG & Co. KG
Postfach
D-73726 Esslingen
+49 711 347 0
www.festo.com
(en) Operating instructions 8024552
1301g
Original: de
Linear drive DGC-8 ... 63-... English . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note
Fitting and commissioning is to be carried out only by qualified personnel in
accordance with the operating instructions.
1 Operating elements and connections
1 2 3 4
7
5 6
9 7 8
1 Thread for mounting the cylinder
foot 1) or for direct mounting
2 Shock absorber or elastomer
shock absorber (exchangeable
chapter “Commissioning”)
3 Guide rail
4 Slide
5 Centring hole for effective load
6 Fastening thread for work load
7 Compressed air connections
8 Groove for proximity sensor 1)
9 Adjusting screw for end position
cushioning
1) Accessories
Fig. 1
2 Function and application
When the compressed air is ports are pressurized
alternately, the piston moves backwards and forwards
in the tubing. By means of a rigid connection, the
outer slide also moves. The slot in the cylinder barrel
required for this is covered by a band system.
Fig. 2 Circuit symbol
The DGC is intended for the space-saving transport of
masses.
Both the slide mode and the yoke operating modes
are permitted (observe loading limits).
Unpressurised movement of the slide is permitted
only for fault elimination and at low speed. If the
speed is too high, the resulting partial vacuum can
pull the sealing band into the piston chamber. This
leads to:
– severe leakage and
– impermissible accelerations (e.g. with a vertical
mounting position).
Fig. 3 Slide operation
Fig. 4 Yoke operation
3 Transport and storage
Note
• Avoid touching the guide rail with your hands during transport und storage.
Otherwise the layer of grease will be damaged.
• Consider the weight of the DGC.
Depending on the design, the DGC weighs over 150 kg.
For transport, the transport belts must be spaced according to the permissible
support distances (support distances
Fig. 6).
4 Requirements for product use
Note
Malfunctions will occur if the device is not used correctly.
• Be sure to always comply with the specifications in this chapter.
• Note the warnings and instructions on the product and in the relevant operat-
ing instructions.
• Compare the maximum values specified in these operating instructions with
your actual application (e.g. forces, torques, temperatures, masses).
Only observance of the load limits allows operation of the product in compliance
with the relevant safety regulations.
• Take into consideration the ambient conditions at the location of use.
Corrosive elements in the environment (e.g. ozone) will reduce the service life of
the product.
• Please comply with national and local safety laws and regulations.
• Use the product in its original state without any unauthorised modifications.
• Remove packaging, such as foils and cardboard.
Exception:
– The plastic cover on the aluminium guide rail (with DGC-…
-G/GF).
The packing is intended for recycling (except for: oiled paper = general waste).
• Make sure that the compressed air is properly prepared 11 Technical Data
• Take the tolerance of the tightening torques into account. Unless otherwise
specified, the tolerance is ±20%.
5 Installation
5.1 Fitting mechanical components
• Avoid pushing in or sucking in the sealing band.
Damage to the sealing band reduces its reliability in operation. Jerky movement
of the unpressurised slide can cause a partial vacuum that sucks the sealing
band into the piston chamber.
• Leave all screws and threaded bolts in their original states, unless you are
requested to modify them in these instructions.
• Do not allow the band system to become damaged or excessively dirty.
Damage to the DGC will reduce its reliability and service life.
• Make sure that the device is fitted free of mechanical stress and distortion.
• Use the foot mounting adapter HPC to mount the DGC on the end caps.
• Turn the mounting screws until they are equally tight.
Tightening torques [Nm]
HPC-8 HPC-12/18 HPC-25 HPC-32/40 HPC-50 HPC-63
0.8 1.6 2 4.5 15 23
Fig. 5
Drives with long stroke lengths:
• Use the support spacings (l) for the profile attachments MUC
Fig. 6.
∅ 8
∅ 12
∅ 18
∅ 25
∅ 32
∅ 40
∅ 50
∅ 63
F
l l