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Festo
556477
Swivel actuator unit DSL-25-50-270-P-A-S20-B
The Festo 556477 is a double-acting rotary vane industrial component featuring a 25 mm piston diameter, a 50 mm stroke, and an adjustable swivel angle range from 0 to 270 degrees with a maximum limit of 272 degrees. It operates on compressed air per ISO 8573-1:2010 [7:4:4] within a 2.5 bar to 8 bar pressure range, utilizing elastic cushioning rings at both ends and integrated plain bearing-guide torsion protection. This unit incorporates a through, hollow piston rod, position sensing via proximity switch, a 1-degree repetition accuracy, and a corrosion resistance class of CRC 1. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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- Manufacturer
- Festo
- Part number
- 556477
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 556477.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Adjustment range of swivel angle
- 0 deg...270 deg
- Stroke
- 50 mm
- Piston diameter
- 25 mm
- Swivel angle
- 0 deg...272 deg
- Cushioning
- Elastic cushioning rings/pads at both ends
- Mounting position
- Any
- Precision adjustment
- -6 deg
- Mode of operation
- Double-acting
- Structural design
- Rotary vane
- Position sensing
- Via proximity switch
- Variants
- Through, hollow piston rod
- Protection against torsion/guide
- With plain bearing-guide
- Operating pressure
- 2.5 bar...8 bar
- Max. impact velocity
- 500 mm/s
- Max. swivel frequency at 6 bar
- 2 Hz
- Swivel angle backlash
- 2 deg
- Repetition accuracy
- 1 deg
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4]
- Information on operating and pilot media
- Operation with oil lubrication possible (required for further use)
- Corrosion resistance class (CRC)
- 1 - Low corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B2-L
- Ambient temperature
- -10 °C...60 °C
- Dynamic load torque
- 0.45 Nm
- Theoretical force at 6 bar, retracting
- 173.5 N
- Theoretical force at 6 bar, advancing
- 246 N
- Theoretical torque at 6 bar
- 5 Nm
- Permissible mass moment of inertia
- 0.00011 kgm²
- Product weight
- 1845 g
- Basic weight with 0 mm stroke
- 1510 g
- Additional weight per 10 mm stroke
- 67 g
- Type of mounting
- Alternatively: | Clamped in T slot
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 556477. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.