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 543991, is a double-acting drive unit featuring a 20 mm piston diameter, a 10 mm stroke, and a ball bearing cage guide with a yoke structural design. It incorporates elastic cushioning rings and pads with a fixed stop at both ends, a front adjustable end-position range of 37.5 mm, a rear range of 39.5 mm, and allows for position sensing via a proximity switch. Operating within a pressure range of 0.1 MPa to 0.8 MPa (1 bar to 8 bar) and a maximum speed of 0.8 m/s, the unit achieves a repetition accuracy of ±0.01 mm using compressed air as per ISO 8573-1:2010 [7:4:4]. Submit the exact part number, quantity, and application requirements for 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 543991. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.