
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 110mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ125X110-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 110 mm nominal stroke that can be dialed back by up to 30 mm, yielding an 80-110 mm usable travel window for fine end-position tuning at commissioning. Operating at 0.5 MPa, it delivers 6136 N of push force and 5734 N of pull force.
This variant includes a magnet for position sensing and uses a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance. The extruded aluminum barrel integrates sensor grooves on both sides for CMSE reed and DMSE electronic switches. The PT tapered port is G1/2, and the variable air cushion at both ends ensures smooth deceleration across its 30-500 mm/s speed range.
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX110-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 110 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 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 | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
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. |
|---|---|
| 125 | Bore size in mm. |
| ×110 | 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 80-110 mm travel window during product size transitions on a packaging line without swapping the cylinder or adding external stopper blocks.
Fine-tune the retract end-position precisely to accommodate varying material thicknesses or tooling offsets at machine commissioning.
Leverage the 6136 N push force at 0.5 MPa for clamping or pressing operations, using the rear screw to set the exact travel limit.
Select this 125 mm bore when an 80-110 mm adjustable stroke and roughly 6000 N of force are required, allowing you to dial in exact end stops during machine setup without adding external physical stops. If your application requires less force, stepping down to a 100 mm bore provides 3927 N of push at 0.5 MPa. For heavier loads, an 80 mm bore yields 2513 N.
Because the rear adjuster acts only as a travel stop and the air cushions provide deceleration, this cylinder cannot hold a load without live air pressure. For drop-prevention or load-holding requirements, consider the SAIL or BSAI series instead. As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders and supports a mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
Quick checklist
At a 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
The rear adjuster screw allows you to shorten the 110 mm nominal stroke by up to 30 mm, creating an 80-110 mm usable travel window. This stopper fine-tunes the end position but does not lock the load without live air pressure.
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