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 3657821) is a double-acting pneumatic actuator featuring a 63 mm piston diameter, a 150 mm stroke, and an external M16x1.5 piston rod thread. Built with a profile barrel structural design 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 with a 22 mm cushioning length. The unit provides position sensing via proximity switch, features a corrosion resistance class of CRC 2, and delivers a theoretical retraction force of 1682 N at 6 bar across an ambient temperature range of -20 °C to 80 °C. Submit the exact part number, quantity, and application requirements to receive 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 3657821. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.