
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 270mm 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 SAIJ63X270-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 260-270 mm usable travel window, letting you dial back the 270 mm nominal stroke by up to 10 mm during commissioning without adding external stops. It delivers 1559 N of push thrust at 0.5 MPa, rising to 2805 N at 0.9 MPa.
This variant features a SUS420J2 stainless steel rod, PT tapered ports, and a magnet for CMSE or DMSE sensors. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position. It does not hold the load without live air pressure, so use a SAIL or BSAI cylinder if your application requires load-holding.
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX270-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 270 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. |
| ×270 | 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 a 260-270 mm window during machine commissioning without swapping out the entire cylinder.
Quickly adapt the stroke end-stop on a packaging line when introducing a slightly different product size that requires less travel.
Precisely set the retraction point for a 63 mm bore actuator pushing up to 1559 N at 0.5 MPa in automated assembly fixtures.
Select this 63 mm bore model when a standard 270 mm stroke needs precise end-position tuning at commissioning or during product changeover. If your setup requires less force, stepping down to a 50 mm bore yields 982 N of push thrust at 0.5 MPa. If you need heavier movement, an 80 mm bore provides 2513 N at the same pressure.
Because the 270 mm stroke is moderately long, ensure your mechanism handles side loads with an external guide rather than relying solely on the 20 mm rod and M16x1.5 thread. This SAIJ model is dimensionally interchangeable per ISO 15552 and uses the reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2. It omits FB, CA, CB, and CR mounts.
Quick checklist
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push thrust and 1402 N of pull thrust. At 0.9 MPa, the push force increases to 2805 N.
The rear adjuster acts as a mechanical stop that lets you shorten the 270 mm nominal stroke by up to 10 mm, creating a 260-270 mm travel window. It only sets the end position and does not function as a lock to hold the load without live air.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.