
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 350mm 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 SAIJ63X350-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 340-350 mm usable travel window, allowing you to trim the effective stroke by up to 10 mm during commissioning without swapping the cylinder. Equipped with a -S magnet, it supports CMSE reed and DMSE electronic sensors housed in the dual-side extruded aluminum barrel grooves.
This bore 63 unit delivers 1559 N of push force and 1402 N of pull force at 0.5 MPa. It uses a PT tapered port and features a SUS420J2 stainless steel rod (code A) for improved corrosion resistance. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX350-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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. |
| ×350 | 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 340-350 mm travel distance during machine commissioning to perfect product placement without adding external mechanical stops.
Quickly adjust the stroke by up to 10 mm on the rear screw to accommodate slightly different package sizes on a packaging line.
Leverage the built-in -S magnet with DMSE electronic sensors to confirm end-of-stroke arrival after fine-tuning the rear stopper.
Choose this 63 mm bore if you need 1559 N push force at 0.5 MPa; step down to a 50 mm bore for 982 N, or up to an 80 mm bore for 2513 N. An adjustable stroke is ideal for fine-tuning end positions during machine setup or product changeover, avoiding the need for fixed SAI cylinders or external stops. For a 350 mm stroke, ensure an external guide is used to prevent excessive side-loading on the piston rod.
To match this ISO 15552 dimensionally interchangeable cylinder, specify: 63 mm bore, 350 mm stroke, 10 mm adjustment, PT port, and a -S magnet. It supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR. If true load-holding is required without live air, use a SAIL or BSAI cylinder instead of relying on the rear stopper.
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 screw allows you to shorten the 350 mm nominal stroke by up to 10 mm, giving a usable travel window of 340-350 mm. The adjuster functions only as a mechanical stop and does not lock or hold the load without continuous air pressure.
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