
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX135-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 135mm 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 SAIJ80X135-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 135 mm stroke by up to 100 mm. This yields a highly versatile usable travel window of 35 to 135 mm, letting you fine-tune the retract end-position at commissioning without swapping the barrel or adding external stops.
This SKU is built with a SUS420J2 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing. It works seamlessly with AirTAC CMSE reed and DMSE electronic sensors via the dual-side barrel grooves. The 25 mm rod and M20x1.5 thread handle side loads well, while the PT tapered ports and 36 mm cushions manage flow and deceleration.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX135-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 135 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. |
| ×135 | 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 from 35 to 135 mm during machine setup to accommodate new product lengths without machining new hard stops.
Rapidly adjust the stroke window on a packaging line to handle different carton sizes, using the rear screw to set the precise end-position.
Regulate the push distance of a 2513 N feed mechanism, relying on the 36 mm air cushions to decelerate the load smoothly at the variable end.
Choose this 80 mm bore when an application requires substantial thrust, such as 2513 N at 0.5 MPa, but demands extreme stroke flexibility. The 100 mm adjustment range is ideal for product-size changeovers on a single machine. If you need less force, the 50 mm bore offers 982 N; if you need more, the 100 mm bore provides 3927 N.
Remember that the rear adjuster acts only as a travel stop, not a lock; the cylinder cannot hold a load without live air, so use a SAIL or BSAI cylinder if load-holding is required. To match this ISO 15552 cylinder, specify 80 mm bore, 135 mm stroke, 100 mm adjust, PT ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mountings, and the -S magnet.
Quick checklist
At the maximum operating pressure of 1.0 MPa, it delivers 513 kgf.
The rear adjuster screw lets you shorten the effective stroke by up to 100 mm, creating a usable travel window of 35 to 135 mm. It acts as a mechanical stop to fine-tune the end position, but it is not a lock and requires live air to hold the load.
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