
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 325mm 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 SAIJ80X325-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 325 mm travel that can be dialed back by up to 100 mm, yielding a precise 225-325 mm usable window for commissioning without external stops. Delivering 2513 N of push force at 0.5 MPa, it handles substantial pneumatic workloads.
This unit utilizes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and features PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. Air cushions at both ends manage deceleration, but note the adjuster is a stop, not a load lock.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 325 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×325 | 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 between 225 and 325 mm during machine setup, accommodating different product sizes without physically replacing the actuator.
Quickly adjust the stroke length on a packaging line to handle varying carton widths, using the rear screw to fine-tune the final stopping position.
Leverage the 2513 N push force at 0.5 MPa to seat components precisely over a long travel distance, relying on the adjuster to prevent over-travel.
Choose this 80 mm bore when an application requires more force than a 63 mm cylinder (which provides 1559 N push at 0.5 MPa) but less bulk than a 100 mm option. The 100 mm adjustment range is perfect for product changeovers on a packaging line, allowing variable end-stops without swapping the cylinder. For fixed-position tasks, a standard SAI cylinder suffices.
Because the 325 mm stroke is relatively long, the 25 mm rod should be guided externally to prevent excessive side-loading and premature seal wear. This SAIJ model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. It will not hold a load without live air; for dead-air holding, use an external rod lock, a SAIL, or a BSAI clamp-lock cylinder.
Quick checklist
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective stroke from its 325 mm nominal length down to as little as 225 mm. This creates a flexible 225-325 mm travel window for fine-tuning end positions without adding external stops.
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