
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 900mm 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 SAIJ63X900-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 63 mm bore and a 900 mm nominal stroke, yielding a usable travel window of 800 to 900 mm. This built-in adjustability allows you to fine-tune the retract end position during commissioning or product changeovers without adding external stops. At 0.5 MPa, it generates 1559 N of push force and 1402 N of pull force.
This unit includes a magnetic piston (-S) for position sensing and uses a PT tapered port thread. The extruded aluminum barrel incorporates sensor grooves on both sides, accepting AirTAC CMSE reed and DMSE electronic solid-state switches. A variable air cushion at both ends manages deceleration, while the carbon steel rod and M16x1.5 rod thread provide a robust interface for your mechanical linkage.
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63X900-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 900 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. |
| ×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.
Dial in the 800 to 900 mm retract position precisely when switching a production line to accommodate different material lengths or packaging dimensions.
Pushes or sorts items across a wide conveyor belt using the full 900 mm travel, with the rear stopper allowing quick tweaks to the diverting endpoint.
Applies up to 1559 N of force at 0.5 MPa to seat components over a long distance, fine-tuning the final lower position without external mechanical jigs.
Choose this 63 mm bore when your application requires around 1559 N of thrust at 0.5 MPa; stepping down to a 50 mm bore drops push force to 982 N, while an 80 mm bore raises it to 2513 N. An adjustable stroke is ideal for machines that process varying product sizes, letting you dial in the exact 800 to 900 mm end-stop on the fly instead of swapping cylinders. If you need to hold a load in place without continuous live air pressure, note that this rear adjuster acts only as a travel stop, not a lock; you should explore an AirTAC SAIL or BSAI series cylinder instead.
Because the 900 mm stroke is long, the M16x1.5 rod and internal guides cannot compensate for excessive side loads. Always pair this cylinder with an external linear guide to prevent premature seal wear. For a true ISO 15552 dimensional replacement, match the 63 mm bore, 900 mm stroke, 100 mm adjustment, G3/8 port, PT thread, and -S magnet, selecting from the available Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting brackets.
Quick checklist
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. If you increase pressure to 0.7 MPa, the push force rises to 2182 N.
The rear adjuster screw lets you shorten the effective stroke by up to 100 mm from the nominal 900 mm, giving you an adjustable travel window of 800 to 900 mm. This stopper only sets the end position; it does not lock the load without live air.
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