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 556757 is a double-acting industrial component featuring a rotary vane structural design with a 40 mm piston diameter, a 125 mm stroke, and a swivel angle adjustment range of 0 deg to 240 deg. This unit incorporates ball bearing-guided torsion protection, a 16 deg cushioning angle, and pneumatic shock absorbers combined with elastic cushioning rings at both ends, operating at pressures between 2.5 bar and 8 bar on compressed air conforming to ISO 8573-1:2010 [7:4:4]. Position sensing is achieved via proximity switch, maintaining a repetition accuracy of 0.1 deg and a swivel angle backlash of 0.05 deg across any mounting position. Submit the exact part number, quantity, and application requirements to receive a 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 556757. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.