
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 90mm stroke, G3/8 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 SAIJ63X90-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 1559 N push force at 0.5 MPa, making it a robust choice for medium-duty automation. The integrated rear stopper allows you to fine-tune the travel end position during commissioning without adding external stops.
This model has a 90 mm nominal stroke that can be dialed back by up to 10 mm, yielding a usable travel window of 80-90 mm. It features a G3/8 port, a 20 mm carbon steel rod with an M16x1.5 thread, and variable air cushions at both ends. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X90-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 90 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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. |
|---|---|
| 63 | Bore size in mm. |
| ×90 | 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 distance within the 80-90 mm window during machine commissioning to perfect product handling without swapping cylinders.
Quickly adjust the stroke end-stop on the fly when switching to a new product size on the line, minimizing downtime.
Use the 10 mm adjustment range to compensate for mechanical tolerances in clamping fixtures, ensuring consistent contact pressure.
Choose this 63 mm bore when a 50 mm bore (982 N push at 0.5 MPa) is too weak, but an 80 mm bore (2513 N) would be excessive overkill. The adjustable stroke is ideal for machine setups requiring precise end-position tuning on product changeovers, rather than relying on a fixed-stroke SAI cylinder. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider the SAIL or BSAI series. This model uses PT tapered ports and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
Quick checklist
At a standard 0.5 MPa operating pressure, this 63 mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N. At the maximum pressure of 1.0 MPa, it delivers up to 318 kgf.
The rear adjusting screw acts as a mechanical stopper that lets you shorten the effective travel from the 90 mm nominal stroke down to as little as 80 mm. This provides a usable 80-90 mm window for fine-tuning the end position at commissioning without altering the cylinder mount.
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