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 556821 is an electromechanical linear axis featuring a ball screw with a 25 mm screw diameter, a size 220 profile, and an adjustable working stroke ranging from 50 mm to 2400 mm. Integrated with a recirculating ball bearing guide, this unit accommodates either a stepper or servo motor, achieves a max speed of 1.5 m/s, delivers a max acceleration of 15 m/s², and maintains a repetition accuracy of ±0.02 mm with a 100% duty cycle. It operates within an ambient temperature range of -10 °C to 60 °C, provides IP40 protection, adheres to VDMA24364 Zone III LABS conformity, and withstands maximum forces of 13000 N for both Fy and Fz with second moments of area Iy at 5570000 mm⁴ and Iz at 35200000 mm⁴ in any mounting position. Submit the exact part number, quantity, and application requirements for an RFQ 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 556821. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.