
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 180mm 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 SAIJ63X180-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel anywhere within an 80 to 180 mm window. Delivering 1559 N of push force at 0.5 MPa, it handles robust actuation while allowing precise end-position tuning during commissioning. This model includes a magnet for position sensing and uses a SUS420J2 stainless steel rod for enhanced corrosion resistance.
The rear adjustment mechanism acts purely as a mechanical stop to set the retraction endpoint and relies on the integrated air cushion for end-of-stroke deceleration. It is not a locking device and will not hold a load without continuous air pressure. For load-holding requirements, consider the SAIL or BSAI series. This cylinder accepts PT tapered ports and operates at speeds between 30 and 800 mm/s.
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX180-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 180 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. |
| ×180 | 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 80 to 180 mm travel window on the fly to accommodate different package lengths on a packaging line without swapping cylinders.
Fine-tune the retraction end-position during initial commissioning to achieve precise mechanical alignment without adding external stops.
Use the 100 mm adjustment range to vary the push-off distance in automated assembly stations for flexible part ejection.
Choose this 63 mm bore if your application requires the 1559 N push force at 0.5 MPa but demands a highly variable end-stop, such as when accommodating multiple product sizes on a single line. If your setup only needs 982 N of push force, stepping down to the 50 mm bore saves space, while moving up to the 80 mm bore provides 2513 N for heavier loads. The integrated magnet allows seamless use of AirTAC CMSE reed and DMSE electronic sensors for exact position feedback.
Because this model features a 180 mm stroke, side-load stress is moderate, but always ensure external guiding for optimal seal longevity. When replacing an ISO 15552 cylinder, match the 63 mm bore, 180 mm nominal stroke, 100 mm adjuster, G3/8 PT ports, and the -S magnet. The SAIJ utilizes a specific mounting subset including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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. At 0.7 MPa, the push force increases to 2182 N.
The rear adjuster acts as a mechanical stop that allows you to shorten the nominal 180 mm stroke by up to 100 mm, providing a usable travel window of 80 to 180 mm. It requires live air to hold position and is not a lock.
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