Festo ESNU-50-10-P-A Manual

Festo Ikke kategoriseret ESNU-50-10-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.
11 Fault clearance
Fault description Cause Remedy
Irregular movement of the
piston rod, cylinder jolts.
Lack of lubricant Apply lubricant in accordance
with wearing parts sheet
è
www.festo.com/spareparts.
The one-way flow control valves
restrict the supply air.
Restrict the exhaust air flow if
possible, not the supply air.
The piston rod is dirty. Clean the cylinder.
Provide covering.
Relubricate after intensive
cleaning.
The supply air is insufficient
(stick slip).
Keep the tubing lines short and
select suitable cross-sections.
Select the correct pressure.
Keep the pressure constant.
The pressure is too low. Connect volume upstream.
The guide is not parallel to the
direction of stroke.
Use self-aligning rod cou-
pler as in accessories
è
www.festo.com/catalogue.
The piston does not move to
the end position.
The cylinder barrel is damaged. Replace the cylinder.
The setting screw for end-posi-
tion cushioning is completely
closed.
Loosen the setting screw.
Foreign matter in the cylinder. Filter the compressed air.
The cylinder travels to an
external end stop.
Readjust the end stop.
False triggering during position
sensing.
The temperatures are too high
or too low.
Comply with the permissible
temperature range of the prox-
imity switches.
Error in the proximity switch Operating instructions of
the proximity switch
è
www.festo.com/sp.
Tab. 1: Fault clearance
12
Technical data
ESNU -8 -10 -12 -16 -20
Pneumatic port M5 G 1/8
Cushioning ESNU-...-P elastic end-position cushioning, both ends
Mounting position any
Operating medium Compressed air to ISO 8573-1:2010 [7:4:4]
Information on the operating
medium
lubricated operation possible, in which case lubricated
operation will always be required
Operating pressure [MPa] 0.15 … 1 0.12 … 1
[bar] 1.5 … 10 1.2 … 10
[psi] 21.8 … 145 17.4 … 145
Ambient temperature [°C] –20 … +80
Theoretical force at
0.6 MPa (6 bar; 87 psi),
advance
[N] 24.8 41.7 60.9 107.3 169.2
Theoretical force exerted by
spring return force, return
[N] 5.4 7 13.3 19.3
Basic weight [g] 34.6 37.3 75 89.9 186.8
Added weight per 10 mm
stroke
[g] 2.4 2.7 4 4.6 7.2
Tab. 2:
Technical data ESNU-8 … 20
ESNU -25 -32 -40 -50 -63
Pneumatic port G 1/8 G 1/8 G 1/4 G 3/8
Cushioning ESNU-...-P elastic end-position cushioning, both ends
Mounting position any
Operating medium Compressed air to ISO 8573-1:2010 [7:4:4]
Information on the operating
medium
lubricated operation possible, in which case lubricated
operation will always be required
Operating pressure [MPa] 0.12 … 1
[bar] 1.2 … 10
[psi] 17.4 … 145
Ambient temperature [°C] –20 … +80
Theoretical force at
0.6 MPa (6 bar; 87 psi),
advance
[N] 270.7 442.4 687.6 1071 1763
Theoretical force exerted by
spring return force, return
[N] 23.8 40.3 66.3 107
Basic weight [g] 238 370.5 661 1087 1445
Added weight per 10 mm
stroke
[g] 11 15.5 24 40 44
Tab. 3:
Technical data ESNU-25 … 63

Produkt Specifikationer

Mærke: Festo
Kategori: Ikke kategoriseret
Model: ESNU-50-10-P-A

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