Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Global industrial sourcing · Houston, Texas info@mropartsrfq.com
Reference imageConfirm configuration by manufacturer part number.
Festo
556426
Swivel actuator unit DSL-20-25-270-P-A-S2-B
The Festo 556426 is a double-acting rotary vane industrial component featuring a 20 mm piston diameter, a 25 mm stroke, and an adjustable swivel angle ranging from 0 degrees to 270 degrees with a -6 degree precision adjustment. It operates on compressed air as per ISO 8573-1:2010 [7:4:4] within an operating pressure of 2.5 bar to 8 bar, incorporating elastic cushioning rings at both ends, a plain bearing-guide for torsion protection, and position sensing via a proximity switch. Featuring a corrosion resistance class of 1, a maximum impact velocity of 500 mm/s, and a repetition accuracy of 1 degree, this unit allows for oil lubrication and mounts in any position. Submit the exact part number, quantity, and application requirements for a quote.
Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
Request a QuoteWhy no listed price?
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
- 556426
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 556426.
Worldwide sourcingSupport for planned and urgent industrial requirements.
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
- 25 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 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
- 2 Hz
- Swivel angle backlash
- 2 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
- 0.2 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
- 7E-05 kgm²
- Product weight
- 1220 g
- Basic weight with 0 mm stroke
- 1090 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 556426. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.