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Festo
556427
Swivel actuator unit DSL-20-25-270-CC-A-S2-B
This Festo industrial component, part number 556427, is a double-acting rotary vane structural design featuring a 20 mm piston diameter, 25 mm stroke, and an adjustable swivel angle range from 0 deg to 246 deg with a -3 deg precision adjustment. Operating at pressures between 2.5 bar and 8 bar using compressed air as per ISO 8573-1:2010 [7:4:4], the unit incorporates pneumatic shock absorbers and elastic cushioning rings at both ends, a plain bearing-guide for torsion protection, and position sensing via proximity switch. It delivers a maximum impact velocity of 500 mm/s, a max swivel frequency of 1 Hz at 6 bar, a 12 deg cushioning angle, a 2 deg swivel angle backlash, and a 0.1 deg repetition accuracy, while permitting oil lubrication. Submit the exact part number, quantity, and application requirements to receive a formal quote.
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- Manufacturer
- Festo
- Part number
- 556427
- Data verification
- Manufacturer evidence reviewed
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Exact part-number verificationTechnical properties are matched to 556427.
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Verified configuration
Technical Specifications
- Cushioning angle
- 12 deg
- Adjustment range of swivel angle
- 0 deg...246 deg
- Stroke
- 25 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
- With plain bearing-guide
- Operating pressure
- 2.5 bar...8 bar
- Max. impact velocity
- 500 mm/s
- Max. swivel frequency at 6 bar
- 1 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
- 0.2 Nm
- Theoretical force at 6 bar, retracting
- 120.5 N
- Theoretical force at 6 bar, advancing
- 159 N
- Theoretical torque at 6 bar
- 2.5 Nm
- Permissible mass moment of inertia
- 0.0012 kgm²
- Product weight
- 1260 g
- Basic weight with 0 mm stroke
- 1130 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 556427. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.