
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX220-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 220mm 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 SAIJ80X220-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end-of-travel position. It provides a usable travel window of 180-220 mm, letting you dial back the 220 mm nominal stroke by up to 40 mm during commissioning without adding external stops.
This variant includes a piston magnet for electronic DMSE or reed CMSE sensors that ride in the dual-side sensor grooves of the extruded aluminum barrel. It features a SUS420J2 stainless steel rod for enhanced corrosion resistance, PT tapered ports, and variable air cushions at both ends. The rear adjuster acts purely as a mechanical stop to set deceleration and cannot hold a load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX220-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 220 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. |
| ×220 | 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 180-220 mm travel window during initial commissioning to perfectly seat parts without machining custom spacers.
Quickly retract the end position by up to 40 mm on packaging lines when switching to a smaller product format.
Use the rear stopper screw to establish precise, repeatable retract positions for multi-stage assembly tooling.
Choose this adjustable-stroke model over a fixed SAI cylinder when your application requires variable end-stops or frequent product-size changeovers. If you need less force, stepping down to a 63 mm bore yields 2182 N at 0.7 MPa; if your process demands higher thrust, a 100 mm bore provides 5497 N. Because the 220 mm stroke is relatively long, use an external guide to prevent excessive side-loading on the 25 mm rod.
This SAIJ80X220-40-S is dimensionally interchangeable per ISO 15552. To match it exactly as a replacement, verify the 80 mm bore, 220 mm stroke, 40 mm adjustment range, PT G3/8 port, and the -S magnet option. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. For applications requiring true load-holding without live air, select the SAIL or BSAI series instead, as the SAIJ adjuster is not a brake.
Quick checklist
The rear adjuster screw lets you shorten the 220 mm nominal stroke by up to 40 mm, creating a 180-220 mm usable travel window. It functions as a mechanical stop to set the end position and does not lock the load in place without air pressure.
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