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
This Festo industrial component, part number 556759, is a double-acting rotary vane structural design featuring a 40 mm piston diameter, a 125 mm stroke, and a ball bearing-guided mechanism providing protection against torsion. It operates with compressed air as per ISO 8573-1:2010 [7:4:4] within an operating pressure range of 2.5 bar to 8 bar, delivering an adjustment range of swivel angle from 0 deg to 270 deg, a maximum swivel frequency of 2 Hz at 6 bar, and elastic cushioning rings or pads at both ends. Additional attributes include a 0.05 deg swivel angle backlash, 1 deg repetition accuracy, -6 deg precision adjustment, position sensing via proximity switch, and through, hollow piston rod variants with a corrosion resistance class of 1 - Low corrosion stress. Submit the exact part number, quantity, and application requirements for 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 556759. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.