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Festo
556639
Swivel actuator unit DSL-20-80-270-P-A-S20-KF-B
The Festo 556639 is a double-acting rotary vane industrial component featuring a 20 mm piston diameter, an 80 mm stroke, and a ball bearing-guided through, hollow piston rod with an adjustment range of swivel angle from 0 deg to 270 deg and an actual swivel angle from 0 deg to 272 deg. Operating at pressures between 2.5 bar and 8 bar using compressed air as per ISO 8573-1:2010 [7:4:4], this unit includes elastic cushioning rings or pads at both ends, position sensing via proximity switch, a maximum impact velocity of 500 mm/s, a maximum swivel frequency of 2 Hz at 6 bar, a swivel angle backlash of 0.05 deg, and a repetition accuracy of 1 deg with a precision adjustment of -6 deg. It features a corrosion resistance class of CRC 1 for low corrosion stress, allows any mounting position, and supports oil lubrication operation which is required for further use. Submit the exact part number, quantity, and application requirements for a quote.
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- Manufacturer
- Festo
- Part number
- 556639
- Data verification
- Manufacturer evidence reviewed
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Exact part-number verificationTechnical properties are matched to 556639.
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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
- 80 mm
- Piston diameter
- 20 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
- Ball bearing-guided
- Operating pressure
- 2.5 bar...8 bar
- Max. impact velocity
- 500 mm/s
- Max. swivel frequency at 6 bar
- 2 Hz
- Swivel angle backlash
- 0.05 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
- 0.35 Nm
- Theoretical force at 6 bar, retracting
- 120.5 N
- Theoretical force at 6 bar, advancing
- 158 N
- Theoretical torque at 6 bar
- 2.5 Nm
- Permissible mass moment of inertia
- 7E-05 kgm²
- Product weight
- 1596 g
- Basic weight with 0 mm stroke
- 1180 g
- Additional weight per 10 mm stroke
- 52 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 556639. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.