
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX225-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 225mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
It features a SUS420J2 stainless steel rod and a built-in magnet for position sensing. The integrated rear stopper allows you to fine-tune the effective travel window anywhere between 195 and 225 mm without swapping hardware.
This 80mm bore pneumatic actuator uses a G3/8 port and includes variable air cushions at both ends to manage kinetic energy. The adjuster acts purely as a mechanical stop to set the retract end position and does not hold the load without live air pressure. For load-holding requirements without continuous air, consider an external rod lock or the AirTAC SAIL series.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 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. |
|---|---|
| 80 | Bore size in mm. |
| ×225 | 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 195-225mm travel window during format changes on a packaging line, using the rear screw to set new retract positions rapidly without changing the cylinder.
Trim up to 30mm of stroke during machine commissioning to perfect the alignment of a heavy press tool without adding external mechanical stops.
Handle multiple part sizes on a single conveyor station by adjusting the cylinder's retract end-stop on the fly to accommodate varying material widths.
The 30mm adjustment range is ideal for machine setups requiring variable end-stops during product changeovers, providing flexibility that a fixed-stroke SAI cylinder cannot offer. To match this ISO 15552 footprint exactly, specify the 225mm stroke, 30mm adjustment, PT tapered port threads, and the -S magnet option.
Because the 225mm stroke exceeds 300mm is false here, side-load concerns are moderate, but the 25mm rod diameter handles standard lateral forces well. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. The -S magnet works seamlessly with AirTAC CMSE reed switches and DMSE electronic sensors.
Quick checklist
At 0.7 MPa, the push force increases to 3518N.
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 225mm stroke by up to 30mm, creating a usable travel window of 195-225mm. It sets the end position but does not lock the load without live air pressure.
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