
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX90-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 90mm 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 SAIJ100X90-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 70-90 mm, letting you dial in the exact retract end-position during commissioning without adding external stops.
This unit is built with a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and includes a magnet for position sensing. It uses PT tapered ports and runs at speeds of 30-800 mm/s. The extruded aluminum barrel features sensor grooves on both sides, compatible with AirTAC CMSE reed and DMSE electronic solid-state switches.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX90-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 90 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. |
| ×90 | 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 70-90 mm retract stop during product size changes without swapping the cylinder or repositioning external physical stops.
Dial in the exact end-of-stroke contact point during commissioning to compensate for mechanical tolerance stack-up in the fixture.
Choose this 100 mm bore when a smaller 80 mm unit (providing 2513 N at 0.5 MPa) lacks the necessary thrust, but a 125 mm bore is excessive. The 20 mm rear adjuster acts purely as a travel stop to fine-tune the 70-90 mm window; it is not a lock. For load-holding without live air pressure, select a SAIL or BSAI cylinder instead. As a dimensionally interchangeable ISO 15552 profile cylinder, it matches replacements by specifying 100 mm bore, 90 mm stroke, 20 mm adjust, PT port, and a -S magnet.
Quick checklist
The SAIJ100X90-20-S uses an external rear screw to mechanically shorten the stroke. With a 90 mm nominal stroke and a 20 mm adjustment code, the usable travel window is 70-90 mm. The adjuster is a stop, not a lock, so it only sets the end position.
At 0.9 MPa, the push force increases to 7068 N.
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