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 part number 556558 is a double-acting rotary vane industrial component featuring a 40 mm piston diameter, a 100 mm stroke, and a swivel angle adjustment range of 0 deg to 270 deg with a 2 deg backlash and 1 deg repetition accuracy. It operates at a pressure of 2.5 bar to 8 bar utilizing compressed air as per ISO 8573-1:2010 [7:4:4], incorporates elastic cushioning rings or pads at both ends, and includes position sensing via a proximity switch. This unit is designed with a through piston rod, a plain bearing-guide for torsion protection, and a corrosion resistance class (CRC) of 1 for low corrosion stress. Submit the exact part number, quantity, and application requirements to receive 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 556558. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.