Airtac SAIJ125 Adjustable Cylinder SAIJ125AX280-75S

Select this 125 mm bore model when an application requires high thrust combined with variable end-stop positioning, such as accommodating multiple product sizes on a single machine line. If you need less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, but the SAIJ125X280-75-S provides the necessary power for heavier payloads. The adjustable stroke is ideal for fine-tuning the retract position at setup, whereas a fixed SAI cylinder locks you into a single 280 mm travel. For load-holding without continuous air pressure, this cylinder is insufficient; the rear adjuster only decelerates the travel end, so you should consider an SAIL air-released lock, a BSAI clamp-lock, or an external rod lock.

Because the nominal stroke is 280 mm, which is below the 1500 mm maximum standard stroke for this bore, it is a standard length. However, any stroke of 300 mm or more generally requires an external guide to prevent excessive side loading on the piston rod. This model uses a 32 mm diameter rod with an M27x2 thread, which provides substantial rigidity, but long unsupported strokes still necessitate proper guiding. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR, while maintaining dimensional interchangeability per ISO 15552.