
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX45-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 45mm 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 SAIJ100X45-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 5 to 45 mm, allowing you to dial back the 45 mm nominal stroke by up to 40 mm during commissioning.
This variant uses a SUS420J2 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel integrates sensor grooves on both sides, and the PT tapered port threads ensure a reliable, sealed connection.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX45-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 45 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. |
| ×45 | 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 5 to 45 mm travel distance during machine setup to accommodate different product sizes without swapping cylinders.
Trim the retract position by up to 40 mm on-site to perfect timing and avoid mechanical crashes during initial automation integration.
Choose this 100 mm bore cylinder when an application requires substantial thrust (3927 N at 0.5 MPa) alongside precise end-position tuning without adding external stops. If your setup needs less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa. The rear adjuster acts purely as a travel stop; it cannot hold the load without live air. For true load-holding, consider a SAIL or BSAI series cylinder.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 45 mm stroke, PT port thread, and -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Since the stroke is under 300 mm, side-load risks are minimal, but always ensure axial alignment.
Quick checklist
The maximum force at 1.0 MPa is 801 kgf.
The rear adjuster screw lets you shorten the 45 mm nominal stroke by up to 40 mm, creating a usable travel window of 5 to 45 mm. This allows fine-tuning of the end position without changing the cylinder itself.
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