
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX950-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 950mm 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.
It features a SUS304 stainless steel rod and PT tapered port threads. The integrated rear stopper allows you to trim the effective travel, creating a precise 920-950mm usable window for exact end-position tuning.
Because the adjuster acts purely as a mechanical stop, it decelerates the retract stroke but does not lock the load without live air. For load-holding without pneumatic pressure, an external rod lock or a related SAIL cylinder is required. This bore size carries a 25mm rod with an M20x1.5 thread, providing substantial rigidity for heavy moving masses.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX950-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 950 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. |
| ×950 | 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 retract position within the 920-950mm window during initial machine commissioning without machining new stop blocks.
Quickly adapt a heavy-duty press or lift station to varying product lengths by turning the rear adjuster on the fly.
Provide a variable mechanical end-stop for large pallet positioning systems where the exact stopping distance needs occasional tweaking.
The 30mm adjustment range is ideal for fine-tuning machinery during commissioning or product changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder. To replace an existing ISO 15552 unit, match the 100mm bore, 950mm stroke, PT port threads, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
With a 950mm stroke, the unsupported piston rod is highly susceptible to side-loading and sagging. Even with the heavy 25mm rod, you must use an external guide rail to prevent premature seal wear and binding. Note that this cylinder operates without a magnet, so position sensing requires external limits rather than CMSE or DMSE switches.
Quick checklist
At the maximum operating pressure of 0.9 MPa, the push force increases to 7068N.
The rear mechanical adjuster allows you to shorten the 950mm nominal stroke by up to 30mm, giving an effective travel range of 920-950mm. The adjuster acts as a travel stop and does not function as a lock to hold the load without air pressure.
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