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 577188 is a double-acting industrial component featuring a 25 mm piston diameter, a 50 mm stroke, and an M8 external piston rod thread at one end conforming to ISO 21287. It operates with compressed air according to ISO 8573-1:2010 [7:4:4] at pressures from 0.15 MPa to 1 MPa (1.5 bar to 10 bar), delivering a theoretical retracting force of 247 N at 6 bar. This unit incorporates self-adjusting pneumatic end-position cushioning with a 3.5 mm cushioning length, 0.3 J impact energy in the end positions, and position sensing via a proximity switch. Rated for ambient temperatures from -20 °C to 80 °C, the assembly achieves corrosion resistance class 2 and ISO Class 5 cleanroom suitability with any mounting position. Submit the exact part number, quantity, and application requirements to request 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 577188. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.