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Festo
556661
Swivel actuator unit DSL-25-40-270-CC-A-S2-KF-B
The Festo 556661 is a double-acting industrial component utilizing a rotary vane structural design with a 25 mm piston diameter, a 40 mm stroke, and a swivel angle adjustment range of 0 deg to 246 deg. This unit features ball bearing-guided torsion protection, a precision adjustment of -3 deg, a swivel angle backlash of 0.05 deg, and a repetition accuracy of 0.1 deg, operating at pressures between 2.5 bar and 8 bar on compressed air conforming to ISO 8573-1:2010 [7:4:4]. Cushioning is provided by pneumatic shock absorbers and elastic rings at both ends, supporting a maximum impact velocity of 500 mm/s and a max swivel frequency of 1 Hz at 6 bar with position sensing via proximity switch. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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- Manufacturer
- Festo
- Part number
- 556661
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 556661.
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Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Cushioning angle
- 10 deg
- Adjustment range of swivel angle
- 0 deg...246 deg
- Stroke
- 40 mm
- Piston diameter
- 25 mm
- Swivel angle
- 0 deg...246 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 piston rod
- Protection against torsion/guide
- Ball bearing-guided
- Operating pressure
- 2.5 bar...8 bar
- Max. impact velocity
- 500 mm/s
- Max. swivel frequency at 6 bar
- 1 Hz
- Swivel angle backlash
- 0.05 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
- 0.7 Nm
- Theoretical force at 6 bar, retracting
- 173.5 N
- Theoretical force at 6 bar, advancing
- 248 N
- Theoretical torque at 6 bar
- 5 Nm
- Permissible mass moment of inertia
- 0.0016 kgm²
- Product weight
- 2023 g
- Basic weight with 0 mm stroke
- 1755 g
- Additional weight per 10 mm stroke
- 67 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 556661. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.