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 556400 is a double-acting rotary vane industrial component featuring a 16 mm piston diameter, a 40 mm stroke, and a swivel angle range of 0 deg to 246 deg with a 15 deg cushioning angle and -3 deg precision adjustment. Operating on compressed air as per ISO 8573-1:2010 [7:4:4] within an operating pressure of 2.5 bar to 8 bar, this variant incorporates a through, hollow piston rod, a plain bearing-guide for torsion protection, and dual-end pneumatic shock absorbers combined with elastic cushioning rings. It achieves a repetition accuracy of 0.1 deg, a maximum impact velocity of 500 mm/s, a 2 deg swivel angle backlash, and a maximum swivel frequency of 1.5 Hz at 6 bar, with position sensing via proximity switch and support for oil-lubricated operation. 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 556400. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.