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Products/Festo/557546
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Festo

557546

Semi-rotary actuator DFPB-170-090-F0710

The Festo part number 557546 is a double-acting rack and pinion industrial component featuring an actuator size of 170 and a 90-degree swivel angle with no cushioning or position detection. Constructed with an F0710 flange hole pattern and a NAMUR-standard valve connection based on VDI/VDE 3845, this unit operates on compressed air meeting ISO 8573-1:2010 [7:4:4] standards within a working pressure range of 1 to 8 bar at a nominal pressure of 5.6 bar. Rated for SIL 3 Low Demand mode and certified for ATEX Gas category II 2G (c T4 X) and ATEX Dust category II 2D (c 125°C X) in ambient temperatures from -20°C to +80°C, it supports any assembly position and allows lubricated operation. Submit the exact part number, quantity, and application requirements to request a formal quote.

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Manufacturer
Festo
Part number
557546
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 557546.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Size of actuator
170
Flange hole pattern
F0710
Swivel angle
90 deg
Cushioning
No cushioning
Assembly position
Any
Mode of operation
double-acting
Design structure
Rack and pinion
Position detection
No
Valve connection conforms to standard
Based on VDI/VDE 3845 (NAMUR)
Safety Integrity Level (SIL)
bis SIL 3 Low Demand mode
Working pressure
1 ... 8 bar
Nominal working pressure
5.6 bar
ATEX category Gas
II 2G
Explosion ignition protection type Gas
c T4 X
ATEX category Dust
II 2D
Explosion ignition protection type Dust
c 125°C X
Explosion-proof ambient temperature
-20°C <= Ta <= +80°C
Ambient temperature
-20 ... 80 °C
Operating medium
Compressed air in accordance with ISO8573-1:2010 [7:4:4]
Note on operating and pilot medium
Lubricated operation possible (subsequently required for further | operation)
CE symbol (see declaration of conformity)
according to EU-Ex protection guideline (ATEX)
Corrosion resistance classification CRC
3
Torque at rated working pressure and 0° rotation angle
154 Nm
Note about the torque
Das Betriebsdrehmoment des Antriebs darf nicht höher sein als das in | der ISO 5211 aufgeführte maximal zulässige Drehmoment, bezogen auf | die Größe des Befestigungsflansches und der Kupplung.
PFD (Probability of Failure on Demand)
4.95E-06
Product weight
5,200 g
Pneumatic connection
Subbase | G1/8
Materials note
Conforms to RoHS
Materials information for drive shaft
Wrought Aluminum alloy | Anodized
Materials information for cover
Aluminum die cast | coated
Materials information for seals
NBR
Materials information, housing
Wrought Aluminum alloy | Anodized
Materials information for nut
Wrought Aluminum alloy | Anodized
Screw material data
High alloy steel, non-corrosive

Engineering context

Identification and RFQ Guidance

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Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

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Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Festo 557546. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.