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 3656857 is a double-acting industrial component featuring an 80 mm piston diameter, a 40 mm stroke, and an external M20x1.5 piston rod thread on one end. Designed with a profile barrel, piston, and piston rod conforming to ISO 15552, it operates within a pressure range of 0.04 MPa to 1.2 MPa and includes self-adjusting pneumatic end-position cushioning. Position sensing is achieved via proximity switch, and the unit functions within an ambient temperature range of -20 °C to 80 °C while delivering a theoretical retracting force of 2721 N at 6 bar. Submit the exact part number, quantity, and application requirements to receive a formal quotation for this component.
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 3656857. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.