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 3657811 is an ISO 15552 compliant double-acting industrial component featuring a 63 mm piston diameter, a 20 mm stroke, and an M16x1.5 external piston rod thread. This piston barrel assembly operates within a pressure range of 0.04 MPa to 1.2 MPa utilizing compressed air per ISO 8573-1:2010 [7:4:4], delivering a theoretical retracting force of 1682 N at 6 bar. Designed with self-adjusting pneumatic end-position cushioning, a 22 mm cushioning length, and 1.3 J impact energy capacity, it supports any mounting position and position sensing via proximity switches. 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 3657811. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.