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Festo
561948
Semi-rotary actuator DRE-77-F12-Q12-FS-O
The Festo 561948 is a single-acting industrial component featuring a size 77 rack and pinion design structure with an ISO 5211 conforming F12 flange hole pattern and a VDI/VDE 3845 NAMUR valve connection. Operating on compressed air in accordance with ISO 8573-1:2010 [7:4:4] at working pressures from 2 to 10 bar, this unit provides a 90-degree swivel angle with an end-position adjustment range of -4 to 8 degrees at 0° and -8 to 4 degrees at 90° using spring force for the closing direction without cushioning or position detection. Rated for ATEX category II 2G with explosion ignition protection type c T6 and ATEX category II 2D with explosion ignition protection type c 60°C, it functions within an explosion-proof ambient temperature range of -20°C to +60°C in any assembly position. Submit the exact part number, quantity, and application requirements to receive a quote.
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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
- Manufacturer
- Festo
- Part number
- 561948
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 561948.
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
- 77
- Flange hole pattern
- F12
- Swivel angle
- 90 deg
- End-position adjustment range at 0°
- -4 ... 8 deg
- End-position adjustment range at 90°
- -8 ... 4 deg
- Fitting connection conforms to standard
- ISO 5211
- Cushioning
- No cushioning
- Assembly position
- Any
- Mode of operation
- single-acting
- Design structure
- Rack and pinion
- Position detection
- No
- Closing direction
- Spring force, closing
- Valve connection conforms to standard
- VDI/VDE 3845 (NAMUR)
- Working pressure
- 2 ... 10 bar
- ATEX category Gas
- II 2G
- Explosion ignition protection type Gas
- c T6
- ATEX category Dust
- II 2D
- Explosion ignition protection type Dust
- c 60°C
- Explosion-proof ambient temperature
- -20°C <= Ta <= +60°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
- Ambient temperature
- -20 ... 80 °C
- Air consumption at 6 bar per cycle 0°-90°-0°
- 18 l
- Product weight
- 19,800 g
- Shaft connection
- V27
- Pneumatic connection
- Subbase | G1/4
- Materials note
- Contains PWIS substances
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
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 561948. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.