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 557287 is a double-acting industrial component featuring a 4-inch piston diameter, a 3-inch stroke, and a profile barrel structural design based on the ISO 21287 norm. This unit incorporates elastic cushioning rings at both ends, a guide rod with a yoke for anti-torsion protection, and position sensing capabilities for proximity sensors. It operates within a pressure range of 1 bar to 10 bar using compressed air according to ISO 8573-1:2010 [7:4:4], delivering a theoretical retracting force of 1017 lbf and an advancing force of 1059 lbf at 6 bar. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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 557287. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.