
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 195mm 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 SAIJ63X195-75 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 1559 N push force at 0.5 MPa, making it suitable for mid-range industrial actuation. The integrated rear stopper allows you to trim the effective travel, providing a usable stroke window of 120-195 mm to accommodate varying product sizes without swapping hardware.
This specific configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads with a G3/8 connection. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to add CMSE reed or DMSE electronic switches later if positioning feedback becomes necessary.
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX195-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 195 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. |
| ×195 | 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 120-195 mm travel window during format changes on a packaging line, using the rear screw to set new end positions without replacing the cylinder.
Fine-tune the final retract position at startup to prevent mechanical crashes, relying on the 75 mm adjustment range to find the exact operating point.
Handle multiple part sizes on a single conveyor station by adjusting the stroke limit on the fly to accommodate different workpiece depths.
Selecting this 63 mm bore cylinder makes sense when your machine setup requires frequent product changeovers and you need a variable end-stop rather than a fixed 195 mm stroke. If your application demands less force, stepping down to a 50 mm bore yields 982 N of push force at 0.5 MPa; stepping up to an 80 mm bore provides 2513 N. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air—consider an AirTAC SAIL or BSAI locking cylinder if dead-air load holding is required.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 195 mm nominal stroke, 75 mm adjustment range, PT G3/8 port, and your chosen mounting style. SAIJ supports a specific subset of mounts: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 195 mm stroke is under the 300 mm threshold, side-load stress is moderate, but the 20 mm rod diameter still requires external guidance for heavy lateral loads.
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 lets you shorten the 195 mm nominal stroke by up to 75 mm, creating a usable travel window of 120-195 mm. It only sets the end position and does not lock the load without live air pressure.
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.