
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX175-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 175mm 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 SAIJ63X175-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 175 mm nominal travel by up to 40 mm. This creates a precise 135 to 175 mm usable window for perfect end-position tuning during commissioning without swapping hardware.
Delivering 2182 N of push force at 0.7 MPa, this bore size handles substantial workloads. It features a SUS420J2 stainless steel rod for superior corrosion resistance, a PT tapered port, and an integrated magnet compatible with CMSE reed and DMSE electronic sensors. Mounting options cover Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX175-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 175 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. |
| ×175 | 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.
Fine-tune the 135-175 mm travel window during product size changeovers without bolting on external stops or replacing the cylinder.
Dial in the exact retract end-position at commissioning using the rear adjuster screw to perfect process timing.
Leverage the 2182 N push force at 0.7 MPa and DMSE electronic sensors for robust, position-verified actuation.
Choose this 63 mm bore when a 50 mm bore (982 N push at 0.5 MPa) is too weak or an 80 mm bore (2513 N) is unnecessarily large. The 40 mm rear adjuster is ideal for variable end-stops and product changeover, offering setup flexibility that a fixed-stroke SAI cannot match. For any load-holding requirements without live air pressure, select a SAIL or BSAI cylinder instead, as the rear adjuster acts only as a travel stop. With a 175 mm stroke, side-load is minimal, but always ensure proper alignment. ISO 15552 replacement match: 63 mm bore, 175 mm stroke, 40 mm adjustment, PT port, -S magnet.
Quick checklist
At 0.5 MPa it 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 screw trims the effective stroke by up to 40 mm, giving the 175 mm nominal stroke a usable travel window of 135 to 175 mm. It functions as a stop to set end-deceleration, not as a lock.
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