
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX170-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 170mm 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 SAIJ100X170-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 150-170 mm usable travel window, allowing you to dial back the nominal 170 mm stroke by up to 20 mm during commissioning.
This unit uses a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance compared to standard carbon steel. It features PT tapered port threads (G1/2) and includes variable air cushions at both ends to manage kinetic energy. The extruded aluminum barrel includes dual sensor grooves, compatible with AirTAC CMSE reed and DMSE electronic sensors when a magnet is specified.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX170-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 170 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. |
| ×170 | 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.
Quickly fine-tune the 150-170 mm travel window during product size changeovers on a packaging line without replacing the cylinder.
Dial in the exact retraction point during machine commissioning to accommodate varying material thicknesses in an assembly process.
Choose this adjustable model over a fixed-stroke SAI when your machine setup requires fine end-position tuning or product-size changeovers without swapping cylinders or adding external stops. If your application needs less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa; for higher force demands, a 125 mm bore offers 6136 N. The rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure. For true load-holding, consider the SAIL or BSAI series.
To replace an ISO 15552 cylinder, match the 100 mm bore, 170 mm stroke, 20 mm adjustment range, PT G1/2 port, and your required mounting style. The SAIJ series supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR brackets. Because the 170 mm stroke is below the 300 mm side-load threshold, standard mounting is sufficient, though long unsupported loads still need an external guide.
Quick checklist
At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw acts as an external stopper, allowing you to shorten the effective stroke by up to 20 mm. This creates a 150-170 mm usable travel window for fine-tuning the end position at commissioning without swapping the cylinder.
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