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Festo
556631
Swivel actuator unit DSL-20-50-270-CC-A-S2-KF-B
This Festo industrial component, part number 556631, is a double-acting rotary vane actuator featuring a 20 mm piston diameter, a 50 mm stroke, and a swivel angle adjustment range from 0 deg to 246 deg with a 12 deg cushioning angle. It utilizes a ball bearing-guided structure for torsion protection, incorporating pneumatic shock absorbers and elastic cushioning rings at both ends along with position sensing via proximity switch. Operating on compressed air per ISO 8573-1:2010 [7:4:4] within a 2.5 bar to 8 bar pressure range, the unit achieves a 0.05 deg swivel angle backlash and 0.1 deg repetition accuracy at a maximum impact velocity of 500 mm/s and 1 Hz swivel frequency at 6 bar. Submit your exact part number, quantity, and application requirements to request a formal quote for this component.
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- Manufacturer
- Festo
- Part number
- 556631
- Data verification
- Manufacturer evidence reviewed
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Exact part-number verificationTechnical properties are matched to 556631.
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Verified configuration
Technical Specifications
- Cushioning angle
- 12 deg
- Adjustment range of swivel angle
- 0 deg...246 deg
- Stroke
- 50 mm
- Piston diameter
- 20 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
- 0.35 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
- 0.0012 kgm²
- Product weight
- 1480 g
- Basic weight with 0 mm stroke
- 1220 g
- Additional weight per 10 mm stroke
- 52 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 556631. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.