
The AirTAC SAIJ125 Adjustable Cylinder SAIJ125X95-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 95mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ125X95-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 65 to 95 mm, allowing you to dial back the 95 mm nominal stroke by up to 30 mm during commissioning.
It features a carbon steel piston rod and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE electronic switches if a magnet is added later. The rear adjuster acts purely as a mechanical stop to set the end position and does not hold the load without live air pressure.
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X95-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 95 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 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 | 5734 N | 5734 N |
| 0.7 MPa | 8027 N | — |
| Max (@1.0 MPa) | 1169 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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. |
|---|---|
| 125 | Bore size in mm. |
| ×95 | 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.
Quickly modify the effective stroke from 95 mm down to 65 mm to accommodate varying package lengths on a packaging line without changing hardware.
Fine-tune the retract end position during initial commissioning to prevent mechanical interference, avoiding the need to fabricate external spacers.
The adjustable stroke is ideal for production lines running multiple product sizes, letting operators fine-tune the end position without swapping the cylinder or adding external stops. For applications requiring the cylinder to hold a load safely without continuous air pressure, use an AirTAC SAIL pilot-lock or BSAI clamp-lock cylinder instead of relying on the rear stopper. To replace an ISO 15552 cylinder, match the 125 mm bore, 95 mm stroke, 30 mm adjustment, PT G1/2 port, and your required mounting hardware.
Quick checklist
The rear adjuster screw lets you shorten the effective travel from the 95 mm nominal stroke down to 65 mm. This provides a 30 mm tuning window to set the exact retract end position without replacing the cylinder.
At 0.7 MPa, the push force increases to 8590 N.
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