Festo CRDSNU Series Operating Instructions

CRDSNU
Round cylinder
Operating instructions
8117748
2020-05b
[8117750]
Translation of the original instructions
© 2020 all rights reserved to Festo SE & Co. KG
1 Applicable documents
All available documents for the product è www.festo.com/sp.
2 Safety
2.1 Safety Instructions
– Take into consideration the ambient conditions at the location of use.
– Only use the product in original status without unauthorised modifications.
– Observe labelling on the product.
– Store the product in a cool, dry, UV-protected and corrosion-protected envir-
onment. Ensure that storage times are kept to a minimum.
– Prior to mounting, installation and maintenance work: Switch off compressed
air supply and secure it from being switched back on.
– Observe tightening torques. Unless otherwise specified, the tolerance is
± 20 %.
2.2 Intended use
The product is intended for the transport of loads.
2.3 Training of skilled personnel
Installation, commissioning, maintenance and disassembly should only be con-
ducted by qualified personnel.
3 Further information
– Accessories è www.festo.com/catalogue.
– Spare parts è www.festo.com/spareparts.
4 Service
Contact your regional Festo contact person if you have technical questions
è www.festo.com.
5 Product overview
5.1 Function
The piston rod moves outwards when the cylinder chamber is pressurised. The
advanced piston rod is retracted as follows:
–
– For double-acting cylinders, by pressurising the other cylinder chamber.
The cylinder force during advance and return is:
– different with piston rod at one end.
– identical with through piston rod.
The position of the piston can be detected by proximity sensors.
5.2
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347-0
www.festo.com
8117748
1 Male thread on the piston rod for
mounting the payload
2 Male thread on the bearing cap for
mounting
Fig. 1 Sample illustration CRDSNU
5.3
• Handle the cylinder so as to avoid any damage to the cylinder barrel and pis-
ton rod.
• Observe the following points:
–
–
–
• Observe tightening torque of lock nuts on the male thread 2.
Size
Tightening torque
on the bearing cap
Tab. 1 Tightening torques on the bearing cap
• Avoid mechanical alignment inaccuracies between the piston rod and an
external guide using one of the following measures:
–
–
–
A rigid coupling impairs the service life and function of the cylinder.
5.4
In the case of a large payload, high piston speed or when using quick exhaust
valves:
• Use suitable shock absorbers or external stops.
To prevent the payload from sliding down suddenly in the event of an air supply
failure in a horizontal or sloping mounting position:
• Use piloted check valves.
To set the speed:
• Use one-way flow control valves in the following supply ports:
–
–
The one-way flow control valves are screwed directly into the supply ports. Use of
other accessories with a screw-in depth that is too long will damage the cushion-
ing piston.
For position sensing with proximity sensors:
• Use proximity sensors with mounting kit.
Avoid external influence caused by magnetic or ferritic parts in the vicinity of
the proximity sensors (spacing ³ 10 mm).
6
6.1
• Connect tubing to supply ports.
7
7.1
• Pressurise the system slowly. A soft start valve is used for gradual start-up
pressurisation è www.festo.com/catalogue.
With medium or large payloads or at high speeds:
• Use sufficiently large arrester fixtures. The product will tolerate the maximum
velocities and payloads without external arrester fixtures
è www.festo.com/catalogue
Design
Installation
Parallel mounting when using external guides
installation without distortion
Compliance with the permissible loads è www.festo.com/catalogue
12 16
[Nm] 15 15
absolutely precise alignment (general)
use of a self-aligning rod coupler FK
use of a guide unit FEN with compensating coupling
Mounting Accessories
For single-acting cylinders: GRLZ (supply air)
For double-acting cylinders: GRLA (exhaust air)
Installation
Pneumatic Installation
Commissioning
Preparation
3 Supply ports in the bearing/end
cap
4 Cross hole for mounting
20 25 32 40 50
40 40 60 80 100
63
100