
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX75-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 75mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ100X75-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 75 mm travel by up to 30 mm. This creates a highly versatile 45-75 mm usable travel window, perfect for fine-tuning end positions during commissioning without swapping out the physical actuator.
This specific configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance, PT tapered port threads, and operates without a piston magnet. The extruded aluminum barrel includes sensor grooves on both sides, and the adjustable rear stopper simply acts as a travel limit to set the deceleration point—it is not a locking mechanism and will not hold a load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX75-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Quickly adapt end positions for different product sizes on a packaging line by dialing in the 45-75 mm travel window without changing the cylinder.
Achieve exact insertion depths during assembly by using the rear stopper to fine-tune the final 30 mm of stroke at commissioning.
The adjustable stroke is ideal for machines requiring variable end-stops or frequent product-size changeovers, saving the cost of stocking multiple fixed-stroke SAI cylinders. If your process requires true load-holding without continuous air pressure, you would need to integrate an external rod lock or look at the SAIL or BSAI series instead.
For an exact ISO 15552 replacement match, verify the 100 mm bore, 75 mm stroke, 30 mm adjustment range, PT port threads, and the lack of a magnet. Because the nominal stroke is 75 mm, an external guide is not strictly necessary for side-load support, but always ensure the mounting configuration fits your frame using the available Basic, FA, LB, TC, FTC, TCM1, or TCM2 bracket options.
Quick checklist
If you increase the pressure to 0.7 MPa, the push force rises to 5497 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm from the nominal 75 mm, giving a usable travel range of 45 to 75 mm. This stopper sets the travel end and deceleration point but does not lock the load without live air pressure.
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