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Products/Festo/556738
Festo 556738 Swivel actuator unit DSL-40-50-270-P-A-S2-KF-B
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Festo

556738

Swivel actuator unit DSL-40-50-270-P-A-S2-KF-B

The Festo 556738 is a double-acting industrial component featuring a rotary vane structural design with a 40 mm piston diameter and a 50 mm stroke. This ball bearing-guided unit operates within a pressure range of 2.5 bar to 8 bar using compressed air as per ISO 8573-1:2010 [7:4:4], offering an adjustable swivel angle of 0 deg to 270 deg and elastic cushioning rings at both ends. It includes position sensing via proximity switch, a through piston rod variant, and a corrosion resistance class of CRC 1 for low corrosion stress. Submit the exact part number, quantity, and application requirements to request a quote.

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Manufacturer
Festo
Part number
556738
Data verification
Manufacturer evidence reviewed

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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
50 mm
Piston diameter
40 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
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
5.4 Nm
Theoretical force at 6 bar, retracting
495 N
Theoretical force at 6 bar, advancing
603 N
Theoretical torque at 6 bar
20 Nm
Permissible mass moment of inertia
0.00024 kgm²
Product weight
6175 g
Basic weight with 0 mm stroke
5300 g
Additional weight per 10 mm stroke
175 g
Type of mounting
Alternatively: | Clamped in T slot

Engineering context

Identification and RFQ Guidance

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.

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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 556738. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.