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 577177 is a double-acting industrial component featuring a 25 mm piston diameter, a 25 mm stroke, and an M6 internal thread on the piston rod at one end. Operating on compressed air per ISO 8573-1:2010 [7:4:4] within a pressure range of 0.15 MPa to 1 MPa, this ISO 21287 conforming cylinder utilizes self-adjusting pneumatic end-position cushioning and position sensing via proximity switch. It provides a theoretical retracting force of 247 N at 6 bar, an ambient temperature range of -20 °C to 80 °C, moderate corrosion resistance (CRC 2), and ISO Class 5 cleanroom suitability. Submit the exact part number, quantity, and application requirements to request 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 577177. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.