
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX300-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 300mm 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 SAIJ100X300-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, letting you dial the effective travel back by up to 30 mm. This creates a 270-300 mm usable stroke window for precise end-position tuning during commissioning without swapping the hardware. It delivers substantial force, pushing 7068 N at 0.9 MPa.
Built with a SUS420J2 stainless steel rod and a PT tapered port, this unit includes a magnet for position sensing. The extruded aluminum barrel features sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX300-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 300 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. |
| ×300 | 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.
Fine-tune the 270-300 mm travel window on the fly to dial in exact end positions for precision assembly tasks without remounting hardware.
Quickly adapt the cylinder stroke during product size changes on a packaging line, using the rear screw to set new retract limits.
An adjustable stroke is ideal for machine setups requiring variable end stops or frequent product changeovers, avoiding the need for external stops. To match this ISO 15552 replacement, align the 100 mm bore, 300 mm stroke, PT port, and -S magnet.
Because the nominal stroke is 300 mm, the 25 mm rod and M20x1.5 thread carry side loads well, but long unsupported travel still requires an external guide. For load-holding without live air, select SAIL or BSAI instead, as this adjuster is not a lock. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
The rear adjuster screw lets you shorten the 300 mm nominal stroke by up to 30 mm, providing a 270-300 mm travel window for fine-tuning end positions.
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