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 1638851 is a double-acting industrial component featuring a 32 mm piston diameter, a 250 mm stroke, and an M10x1.25 external piston rod thread conforming to ISO 15552. This unit incorporates adjustable pneumatic cushioning at both ends, a 17 mm cushioning length, and position sensing via proximity switch across an operating pressure range of 0.06 MPa to 1.2 MPa. Constructed with a piston rod at one end and a structural design comprising a piston, piston rod, tie rod 1, and cylinder barrel, it operates on compressed air per ISO 8573-1:2010 [7:4:4] with possible oil lubrication. Rated for a moderate corrosion resistance class (CRC 2), VDMA24364-B1/B2-L LABS conformity, ISO 14644-1 Class 5 cleanroom suitability, and an ambient temperature range of -20 °C to 80 °C, the component functions in any mounting position with an end-position impact energy of 0.4 J. 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 1638851. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.