
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 900mm 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 SAIJ100X900-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 825-900 mm, letting you dial back the 900 mm nominal stroke by up to 75 mm during commissioning. This bore delivers 3927 N of push force at 0.5 MPa, scaling up to 7068 N at 0.9 MPa. The integrated -S magnet works seamlessly with AirTAC CMSE reed and DMSE solid-state sensors housed in the dual-side barrel grooves.
Equipped with a 25 mm carbon steel rod and M20x1.5 rod thread, this unit handles robust side loads, though a 900 mm stroke still requires an external guide to prevent rod sag. The rear adjuster acts purely as a mechanical stop to set end positions and tune the air cushioning, so it will not hold a load without live air pressure. The mounting set covers Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X900-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 900 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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. |
|---|---|
| 100 | Bore size in mm. |
| ×900 | 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 tune the 825-900 mm travel window during product size transitions without swapping out the entire actuator.
Fine-tune the exact retract end-position during setup to dial in critical stops and optimize the variable air cushioning.
Leverage the 7068 N push force at 0.9 MPa to shift heavy pallets or transfer large assemblies along guided rails.
Select this 100 mm bore when an 80 mm bore (2513 N push at 0.5 MPa) is insufficient for moving heavy fixtures, but a 125 mm bore is oversized. The 75 mm adjustment range is ideal for product lines requiring frequent format changes, eliminating the need to physically swap cylinders to achieve a shorter end position. For applications needing true position holding without live air, consider the SAIL pneumatic lock or BSAI clamp-lock cylinders instead of relying on this adjuster.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 900 mm stroke, 75 mm adjustment, PT tapered port threads, and -S magnet option. Because the 900 mm stroke exceeds typical unsupported lengths, always pair it with an external guide rail to support the load and protect the rod seals from excessive wear.
Quick checklist
At 0.5 MPa it provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
A rear mechanical stopper lets you shorten the effective travel from 900 mm down to 825 mm. It sets the end position but does not lock the load without live air pressure.
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