
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX55-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 55mm 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.
The AirTAC SAIJ80X55-30-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. This model includes a magnet for position sensing and uses an SUS420J2 stainless steel rod for improved corrosion resistance.
Equipped with PT tapered G3/8 ports, it operates at speeds of 30-800mm/s. The rear adjuster acts purely as a travel stop for fine-tuning and deceleration alongside the standard air cushions; it does not hold the load without live air. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX55-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 55 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. |
| ×55 | 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 25 to 55mm end-stop during format changes on packaging lines without swapping hardware.
Fine-tune the retract stroke at machine commissioning to achieve precise mechanical alignment.
Provides adaptable travel limits for assembly stations handling parts with slight dimensional variances.
Choose this 80mm bore when an application requires higher thrust than a 63mm cylinder (which provides 1559N at 0.5 MPa) but has limited space or needs a shorter stroke. The adjustable 25-55mm window is perfect for product-size changeovers on a line. If you need true load-holding without continuous air pressure, use an SAIL or BSAI cylinder instead, as this adjuster is only a stop.
For an exact ISO 15552 replacement, match the 80mm bore, 55mm stroke, 30mm adjustment, PT G3/8 port, and the -S magnet requirement. The integrated magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches.
Quick checklist
At 0.7 MPa, the push force increases to 3518N.
The rear adjuster allows you to mechanically shorten the effective stroke by up to 30mm. This creates a usable travel window of 25 to 55mm, enabling precise end-position tuning without changing the cylinder.
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