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Festo
556643
Swivel actuator unit DSL-20-100-270-CC-A-S2-KF-B
The Festo 556643 is a double-acting industrial component featuring a rotary vane structural design with a 20 mm piston diameter, a 100 mm stroke, and a swivel angle ranging from 0 deg to 246 deg with a 12 deg cushioning angle. Equipped with ball bearing-guided protection against torsion, a 0.05 deg swivel angle backlash, and a 0.1 deg repetition accuracy, it operates within a 2.5 bar to 8 bar pressure range using compressed air as per ISO 8573-1:2010 [7:4:4] with possible oil lubrication. Cushioning is provided by pneumatic shock absorbers and elastic cushioning rings or pads at both ends, supporting a maximum impact velocity of 500 mm/s and a max swivel frequency of 1 Hz at 6 bar. Submit the exact part number, quantity, and application requirements for 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
- 556643
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 556643.
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Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Cushioning angle
- 12 deg
- Adjustment range of swivel angle
- 0 deg...246 deg
- Stroke
- 100 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
- 1740 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 556643. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.