Festo ESNU-50-25-P-A Manual

Festo Ikke kategoriseret ESNU-50-25-P-A

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Side 1/2
ESNU
Round cylinder
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Deutschland
+49 711 347-0
Operating instructions
8150506
2021-11
[8150508]
Translation of the original instructions
© 2021 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
–
Only use the product in its original condition without unauthorised modifica-
tions.
–
Take into account the ambient conditions at the location of use.
–
Observe the identifications on the product.
–Store the product in a cool, dry environment protected from UV and corrosion.
Keep storage times short.
–Before working on the product, switch off the compressed air supply and lock it
to prevent it from being switched on again.
2.2 Intended use
The product is intended for the transport of loads.
2.3 Training of qualified personnel
Work on the product may only be carried out by qualified personnel who can eval-
uate the work and detect dangers. Personnel must have the relevant mechanical
training.
3 Additional information
–
Contact the regional Festo contact if you have technical problems
è
www.festo.com.
–
Accessories and spare parts
è
www.festo.com/catalogue.
4 Function
The piston rod moves outwards when the cylinder chamber is pressurised.
With single-acting cylinders the extended piston rod is retracted by an integrated
return spring.
With a single-ended piston rod the cylinder force is different in forward and
reverse.
The position of the piston can be queried by proximity switches.
5
Product design
1 2 3 4
Fig. 1:
Round cylinder ESNU
1
Male thread on the piston rod
2
Male thread on the bearing cap
3
4
Cross hole for mounting
6 Transport
NOTICE
Unexpected and unbraked movement of components
• Secure moving components for transport.
1. Take product weight into account
è
12 Technical data.
2. Maintain the support clearance of 300 mm when attaching transportation£
equipment.
7 Mounting
1. Handle the cylinder so as to avoid any damage to the cylinder barrel and the
piston rod.
2. Note the following points:
–Parallel mounting when using external guides
–
Mounting without distortion
–
Compliance with the permissible loads
è
www.festo.com/catalogue
3. Observe the maximum tightening torque of the counter nut on the male
thread on the bearing cap [2].
ESNU -8 -10 -12 -16 -20
Maximum tightening torque
on the bearing cap
[Nm] 10 20 40
ESNU -25 -32 -40 -50 -63
Maximum tightening torque
on the bearing cap
[Nm] 40 60 80 100
4. Avoid a mechanical alignment inaccuracy between the piston rod and an
external guide with one of the following measures:
–
absolutely precise alignment
–use of a self-aligning rod coupler FK
–use of a guide unit FEN with compensating coupling
A rigid coupling will reduce the service life and the function of the cylinder.
8 Mounting accessories
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 velocity:
•
Use one-way flow control valves in the following supply ports:
–for single-acting cylinders: GRLZ (supply air)
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
cushioning piston.
For position sensing with proximity switches:
•
Use proximity switches with mounting kit.
Avoid external influence caused by magnetic or ferritic parts in the vicinity of
the proximity switches. Distance 10 mm.³
9 Pneumatic installation
•
Connect the tubing to the pneumatic port [3].
10 Commissioning
1.
Pressurise the complete system. A soft start valve is used for the slow switch-
on pressurisation
è
www.festo.com/catalogue.
2.
With medium or large payloads or at high velocities:
–Use an arrester fixture with sufficient sizing
è
www.festo.com/catalogue.
NOTICE
Risk of collision due to payloads that project into the setup region of the product.
• Only turn adjusting screws while the product is stationary.
3. Close the one-way flow control valve completely, then open it again by one
revolution.
4. Pressurise the cylinder at the pneumatic port [3].
Ä
The piston rod advances to the end position.
5. Exhaust the cylinder.
Ä
The piston rod is retracted to the end position by the spring return.
6. Start the test run.
7.
If necessary: correct the velocity at the one-way flow control valve. The piston
rod should reach the end stop without hard impact or rebounding.

Produkt Specifikationer

Mærke: Festo
Kategori: Ikke kategoriseret
Model: ESNU-50-25-P-A

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