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 557285, is a double-acting unit built on ISO 21287 with a 4-inch piston diameter, a 2-inch stroke, and a profile barrel structural design featuring a piston, piston rod, and a guide rod with yoke for anti-torsion protection. It operates on compressed air per ISO 8573-1:2010 [7:4:4] across an operating pressure range of 1 bar to 10 bar, delivering a theoretical force of 1059 lbf advancing and 1017 lbf retracting at 6 bar. The assembly incorporates elastic cushioning rings at both ends, position sensing for proximity sensors, and a moderate corrosion resistance class (CRC) rating of 2. Submit the exact part number, quantity, and application requirements to request a formal 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 557285. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.