
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX135-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 135mm 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 SAIJ100X135-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 135 mm travel by up to 40 mm for a usable window of 95-135 mm.
This unit features a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads with a G1/2 connection. The extruded aluminum barrel includes sensor grooves on both sides, and because no magnet is specified, position sensing would require adding a -S variant to use with AirTAC CMSE or DMSE switches.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX135-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 135 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. |
| ×135 | 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.
Dial in the exact 95 to 135 mm retract distance during setup without machining new hard stops or changing the cylinder.
Quickly adapt the end-of-stroke position on a line running mixed product sizes by turning the rear adjustment screw.
The adjustable 95-135 mm travel window is ideal for fine-tuning retract end positions during machine commissioning or product changeovers without swapping the entire cylinder or adding external stops. While the 135 mm stroke is relatively short, if your application extends beyond 300 mm, you should incorporate an external guide to manage side loads.
For an exact ISO 15552 replacement, match the 100 mm bore, 135 mm stroke, 40 mm adjustment code, PT port threads, and your required mounting option from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider the SAIL or BSAI series.
Quick checklist
At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster acts as an external stopper that lets you shorten the effective stroke from its nominal 135 mm down to 95 mm. It only sets the travel end and does not lock the load without continuous air pressure.
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