
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX375-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 375mm 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 SAIJ100X375-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, designed to provide exact end-position tuning without the need for external stops. By integrating a 100mm adjustment mechanism with its 375mm nominal stroke, this model delivers a highly versatile usable travel window of 275 to 375mm. This built-in flexibility is ideal for machine setups requiring frequent product changeovers or precise positioning.
This specific configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance in demanding environments. It utilizes PT tapered port threads to ensure a reliable, leak-free pneumatic connection. The extruded aluminum barrel includes sensor grooves on both sides, allowing for the straightforward installation of CMSE reed or DMSE electronic sensors if position feedback is later required. Furthermore, the SAIJ mounting set supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 configurations, intentionally omitting FB, CA, CB, and CR options to streamline the adjustable stopper design.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX375-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 375 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. |
| ×375 | 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.
Leverage the 275-375mm adjustable travel window to rapidly switch end-stops for varying product lengths on a single conveyor line without changing cylinders.
Fine-tune the exact retract position during machine setup to align tooling perfectly, using the rear stopper instead of adding shims or external hard stops.
If your setup requires less force, stepping down to an 80mm bore yields 4523N at the same pressure; conversely, moving to a 125mm bore provides 11045N for heavier loads. The 100mm adjustment range allows you to dial back the travel by up to 100mm during commissioning, avoiding the need to physically swap out a fixed-stroke SAI cylinder for every new product size.
Because this unit features a 375mm stroke, it is critical to manage side loads by incorporating an external guide to prevent excessive wear on the rod and cylinder seals. Remember that the rear adjuster functions strictly as a travel stop and does not hold the load in the absence of live air pressure. For applications requiring true load-holding without continuous air supply, consider an AirTAC SAIL pneumatic lock cylinder, a BSAI clamp-lock model, or an external rod lock. To match this ISO 15552 dimensionally interchangeable cylinder, specify a 100mm bore, 375mm stroke, 100mm adjustment, PT G1/2 ports, and the SUS420J2 rod material.
Quick checklist
The cylinder has a nominal stroke of 375mm with a 100mm adjustment range, allowing you to set the effective travel anywhere within a 275 to 375mm window using the rear adjuster.
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