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 556766 is a double-acting rotary vane industrial component featuring a 40 mm piston diameter, a 160 mm stroke, and a swivel angle adjustment range of 0 deg to 240 deg with a 0.05 deg swivel angle backlash and 0.1 deg repetition accuracy. This ball bearing-guided unit includes a through, hollow piston rod, pneumatic shock absorbers and elastic cushioning rings at both ends, a 16 deg cushioning angle, a -3 deg precision adjustment, and position sensing via proximity switch. It operates on compressed air conforming to ISO 8573-1:2010 [7:4:4] at pressures between 2.5 bar and 8 bar, supporting a maximum impact velocity of 500 mm/s and a max swivel frequency of 0.7 Hz at 6 bar in any mounting position. Submit the exact part number, quantity, and application requirements to receive a quote for this component.
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 556766. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.