Festo DGC-K-18 … -80 - Manual

DGC-K-18 … -80
Festo AG & Co. KG
Postfach
73726 Esslingen
Germany
+49 711 347-0
www.festo.com
Operating instructions 8025694
1306a
[8025692]
Original: de
Linear actuator DGC-K-18 … -80 English . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note
Installation and commissioning are to be carried out only by qualified specialists
(
operating instructions).
1 Control sections and connections
1 2 3 4
6
2 5
8 9 7
1 Connection cap
2 Regulating screw for internal
end-position cushioning
3 Slide
4 Mounting thread for useful load
5 End cap
6 Slot for proximity sensor 1)
7 Mounting slots in the profile
8 Pneumatic connections
9 Thread for direct mounting on the
cover 2)
1) Accessories
2) In the DGC-K-18 ...-63, the threads are in the cover screws.
The DGC-K-80 has separate threads.
Fig. 1
2 Function and application
When the pneumatic ports 7 are pressurized altern-
atingly, the piston moves backwards and forwards in
the profile barrel. By means of a rigid connection, the
slide
3 also moves. The slot in the profile barrel re-
quired for this is covered by a band system.
Fig. 2 Circuit symbol
The DGC-K is intended for the space-saving transport
of loads.
It is approved for the slide operating mode.
Fig. 3 Slide mode
Note
Unpressurized movement of the slide is permitted only for fault correction and at
low speed. If excessive speed is used, the resulting low pressure can pull the
sealing band into the piston chamber. This leads to:
– high leakage and
– impermissible acceleration (e.g. when installed vertically).
3 Transport and storage
• Consider the weight of the DGC-K.
The DGC-K weighs up to 82 kg, depending on the design.
For transport, the conveyors must be spaced according to the permissible sup-
port spacings (support spacings
Fig. 4 and Fig. 5).
4 Requirements for product use
Note
Improper handling can result in malfunctions.
• Make sure that the specifications contained in this chapter are adhered to at
all times.
This is the only way to ensure correct and safe product behaviour.
• Take into consideration the legal regulations applicable for the destination as
well as:
– regulations and standards
– regulations of the testing organizations and insurers
– national specifications.
• Remove all transport packaging such as plastic sheets, caps and cartons (ex-
cept for any covers in the pneumatic ports).
The material used in the packaging has been specifically chosen for its recyclab-
ility (exception: oil paper = residual waste).
• Use the product in its original status, without any unauthorised product modific-
ations.
• Take into consideration the ambient conditions at the location of use.
Corrosive environments (e.g. ozone) will reduce the service life of the product.
• Compare the limit values specified in these operating instructions with your
actual application (e.g. pressures, forces, torques, temperatures, loads,
speeds).
Operation of the product in compliance with the relevant safety regulations is
contingent on adherence to the load limits.
• Take the tolerance of the tightening torques into account.
Unless otherwise specified, the tolerance is ±20 %.
For vertical installation:
• Make sure that the slide has reached a stable position when it comes to a stop
(e.g. the lowest point or secured with external stops).
• Make sure the compressed air is properly prepared ( Technical data).
• Maintain the selected medium for the total service life of the product. Example:
Always use non-lubricated compressed air.
• Slowly pressurise the system as a whole.
There will then be no uncontrolled movements.
For slow start-up pressurisation, use start-up valve type HEL.
5 Installation
5.1 Installation, mechanical
• Avoid the sealing band being pressed and/or sucked in.
Damage to the sealing band reduces its reliability in operation. Jerky movement
of the unpressurized slide can cause a partial vacuum that sucks the sealing
band into the piston chamber.
• Avoid the band system becoming damaged or excessively dirty.
Damage to the DGC-K will reduce its reliability and service life.
• Make sure that the device is installed free of distortion and deflection.
• Use:
– the mounting thread 9 for direct mounting to the connection and end
cap 1 and 5
– The mounting slots with large stroke lengths for attachment via the profile,
taking into account the recommended support spacings ( Fig. 4 and Fig. 5).
• Select the corresponding mounting accessories from our catalogue
( www.festo.com/catalogue).
Note
• Make sure that the travel range of the drive is not restricted by the attach-
ments to the profile (in particular with lateral attachment).
• To do this, push the movable load one time over the complete positioning
path.