
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 750mm 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 SAIJ100X750-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 700-750 mm usable travel window, allowing you to dial back the nominal 750 mm stroke by up to 50 mm during commissioning. This bore delivers 3927 N of push force at 0.5 MPa, utilizing a robust 25 mm carbon steel rod and M20x1.5 rod thread to handle heavy loads.
The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. It uses a PT G1/2 port and achieves speeds of 30-800 mm/s. The rear adjuster acts purely as a mechanical stop for end-position tuning; it does not hold the load without live air pressure, so a SAIL or BSAI lock is needed for load-holding.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X750-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 750 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. |
| ×750 | 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.
Adjusts the retract distance by up to 50 mm to handle different package lengths on a sorting line without physically remounting the actuator.
Fine-tunes the 700-750 mm material push distance during machine setup to dial in exact indexing positions for heavy sheet feeding.
Sets precise mechanical end-stops for multi-format palletizing tools, allowing rapid 50 mm travel adjustments between production runs.
Choose this 100 mm bore when 80 mm (2513 N at 0.5 MPa) is insufficient for your dynamic load, but you want to avoid the larger 125 mm footprint. The 50 mm adjustment range is ideal for product changeovers on long-stroke lines, letting you fine-tune the retract end without swapping the cylinder or adding external stops. To match this ISO 15552 replacement, specify the 100 mm bore, 750 mm stroke, 50 mm adjust, PT G1/2 port, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set.
Because the 750 mm stroke is long, the unsupported 25 mm rod is susceptible to side-loading and sagging. An external guide rail is strongly recommended to prevent premature seal wear and binding. Since no -S magnet is specified, position sensing requires external bolt-on switches rather than the integrated CMSE or DMSE grooves.
Quick checklist
The rear adjuster lets you shorten the effective travel from the 750 mm nominal stroke down to 700 mm. It acts as a mechanical stop to fine-tune the retract position, but it is not a lock and will not hold the load without live air pressure.
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
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