
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX145-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 145mm 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 SAIJ63X145-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a 135-145 mm usable travel window from its 145 mm nominal stroke. It delivers a 0.5 MPa push force of 1559 N and a pull force of 1402 N, making it well-suited for mid-range automation tasks. The barrel is an extruded aluminum profile, not a tie-rod design, ensuring rigidity while keeping weight optimized.
This specific SKU features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance compared to standard carbon steel. It includes a built-in magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors, and uses PT tapered port threads. The rear adjuster acts purely as a mechanical stop for end-position tuning; it does not hold the load without live air pressure.
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX145-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 145 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. |
| ×145 | 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 135-145 mm end position during commissioning to perfect pressing or forming depth without swapping physical hardware.
Quickly adjust the travel stop on packaging lines when switching between slightly different product sizes that require varying stroke endpoints.
Use the rear screw to set a precise retraction point for a 63 mm bore assembly actuator, ensuring consistent part seating.
Select this 63 mm bore cylinder when your application requires 1559 N of push force at 0.5 MPa and benefits from precise end-position tuning without adding external stops. If you need less force, the 50 mm bore offers 982 N; if you need more, the 80 mm bore provides 2513 N. The adjustable 10 mm window is perfect for machine setup and product changeovers, whereas a fixed SAI cylinder lacks this commissioning flexibility. Because the stroke is under 300 mm, side-load concerns are minimal, but an external guide is still recommended for heavy lateral loads. For load-holding without live air, this cylinder is insufficient; consider the SAIL or BSAI series instead. It mounts via Basic, FA, LB, TC, FTC, TCM1, or TCM2 interfaces, omitting FB, CA, CB, and CR. It is dimensionally interchangeable with ISO 15552 cylinders.
Quick checklist
At 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 0.7 MPa, the push force increases to 2182 N.
The rear adjuster screw allows you to trim the effective stroke back by up to 10 mm, creating a 135-145 mm usable travel window. This stopper only sets the end position and decelerates the travel; it does not lock or hold the load without continuous air pressure.
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