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Festo
556550
Swivel actuator unit DSL-40-50-270-CC-A-S20-B
The Festo 556550 is a double-acting rotary vane industrial component featuring a 40 mm piston diameter, a 50 mm stroke, and an adjustable swivel angle ranging from 0 deg to 240 deg with a 16 deg cushioning angle. This unit incorporates pneumatic shock absorbers and elastic cushioning rings at both ends, a 0.1 deg repetition accuracy, and a plain bearing-guide for torsion protection. Operating within a 2.5 bar to 8 bar pressure range, it utilizes compressed air as per ISO 8573-1:2010 [7:4:4] and supports position sensing via proximity switch. 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
- 556550
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 556550.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Cushioning angle
- 16 deg
- Adjustment range of swivel angle
- 0 deg...240 deg
- Stroke
- 50 mm
- Piston diameter
- 40 mm
- Swivel angle
- 0 deg...240 deg
- Cushioning
- Pneumatic shock absorber at both ends | Elastic cushioning rings/pads at both ends
- Mounting position
- Any
- Precision adjustment
- -3 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
- 0.7 Hz
- Swivel angle backlash
- 2 deg
- Repetition accuracy
- 0.1 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
- 1.1 Nm
- Theoretical force at 6 bar, retracting
- 495 N
- Theoretical force at 6 bar, advancing
- 660 N
- Theoretical torque at 6 bar
- 20 Nm
- Permissible mass moment of inertia
- 0.004 kgm²
- Product weight
- 6055 g
- Basic weight with 0 mm stroke
- 5205 g
- Additional weight per 10 mm stroke
- 170 g
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 556550. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.