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.

Festo
The Festo 556633 is a double-acting industrial component featuring a rotary vane structural design with a 20 mm piston diameter, a 50 mm stroke, and a ball bearing-guided through, hollow piston rod. It operates within a 2.5 bar to 8 bar pressure range using compressed air as per ISO 8573-1:2010 [7:4:4] and incorporates elastic cushioning rings or pads at both ends with an adjustable swivel angle range of 0 degrees to 270 degrees. Position sensing is achieved via a proximity switch, supporting a maximum swivel frequency of 2 Hz at 6 bar, a repetition accuracy of 1 degree, and an operating swivel angle of 0 degrees to 272 degrees with -6 degrees precision adjustment. Submit the exact part number, quantity, and application requirements for a formal quote.
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.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
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.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Festo 556633. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.