Festo DFST-32-20-Y4-A-G2 Manual

Festo Ikke kategoriseret DFST-32-20-Y4-A-G2

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Side 1/4

Translation of the original instructions

1 Applicable Documents

All available documents for the product www.festo.com/sp.è

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 stopper cylinder DFST is designed for use as a retractable fixed stop in order

to reach defined holding positions with transported material (e.g. on mounting or

sorting systems). The DFST sorts the stationary transported material in buffer

zones.

Fig. 1 Stopping transported material

2.3 Foreseeable misuse

With DFST-...-L: the toggle lever must not be overrun in the stop direction by the

transported material when the lever locking mechanism is active. Otherwise the

transported material will damage the locking mechanism.

2.4 Training of qualified personnel

Installation, commissioning, maintenance and disassembly should only be con-

ducted by qualified personnel.

The skilled personnel must be familiar with the installation of pneumatic control

systems.

3 Further information

– Accessories www.festo.com/catalogue.è

– Spare parts www.festo.com/spareparts.è

4 Service

Contact your regional Festo contact person if you have technical questions

èwww.festo.com.

5 Product overview

5.1 Function

The stopper cylinder DFST is a double-acting cylinder. The piston rod is extended

with the toggle lever mechanism by pressurising the supply port . The toggle1

lever gently stops the incoming transported material with the integrated shock

absorber. The piston rod is retracted by pressurising the supply port . The2

stopper cylinder with spring return (not applicable for DFST-...-D/DL) can also be

set to single-acting. This is done by screwing a silencer into the supply port .1

This makes sense if reduced extension velocities are sufficient.

Lever Locking Mechanism

With the stopper cylinder DFST-..-L with a factory-installed lever locking mechan-

ism, the toggle lever locks into its end position. When the stopper cylinder is

retracted, the toggle lever locking mechanism is automatically deactivated.

5.2 Structure

Supply port (extending, 2x)

Supply port (retracting, 2x)

Guide rod for protection against

rotation

Piston rod

Detent for knurled nut

Roller toggle lever

Stop roller

Thread for inductive proximity

sensor (2x)

Lever locking mechanism (option-

al)

Knurled nut for setting the cush-

ioning

Stop for lever locking mechanism

Hole for mounting toggle lever

deactivation mechanism

Through-hole for mounting (4x)

Slot for proximity sensor (6x)

Fig. 2 Product design

8123248

DFST-32-...-G2

Stopper cylinder

8123248

2020-01

[8123250]

Instructions| Operating

Festo SE & Co. KG

Ruiter Straße 82

73734 Esslingen

Germany

+49 711 347-0

www.festo.com

6 Mounting

6.1 Preparation

Fig. 3 Maintain required distances

• Leave sufficient space for the pneumatic connections and for replacing the

shock absorber.

Fig. 4 Alignment of transported material

• Observe the following points:

– the conveyed material impinges on the roller of the toggle lever.

– the direction of transport of the transported material is exactly perpendic-

ular to the roller toggle lever.

Fig. 5 Changing stopper head

• The roller toggle lever can be rotated 90° to each of 4positions by the off-9

set of the guide rod. Lock guide rod with thread-locking compound when

screwing it into the new position.

Fig. 6 Mounting Clearances

• Observe distances X

, X

and X

. The distances refer to the bottom of the

flange as the mounting level of the stopper cylinder with the piston rod exten-

ded.

Size 32

X1 (maximum distance from the bottom of the pallet) [mm] 76.1

X2 (toggle lever pressed) [mm] 81.3

Size 32

X3 (minimum distance from the bottom of the pallet) [mm] 73.8

1) The dimensions refer to the position of the maximum energy absorption (knurled nut in the upper posi-

tion).

Tab. 1 Mounting Clearances

6.2 Mounting

Fig. 7 Direct mounting

• Fasten the stopper cylinder with 4 screws.

Size 32

Screw M6

Tab. 2 Screw Sizes

6.3 Mounting Accessories

Proximity Sensor

Fig. 8

• Fasten the proximity sensor in the thread or in the slot in accordance8 aD

with the assembly instructions.

Lever Deactivating Mechanism

Fig. 9 Lever Deactivating Mechanism

• Attach the lever deactivating mechanism in accordance with the assembly

instructions.

7 Pneumatic installation

• Select one of the two alternative connections:

Produkt Specifikationer

Mærke:	Festo
Kategori:	Ikke kategoriseret
Model:	DFST-32-20-Y4-A-G2

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