
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX140-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 140mm 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 SAIJ80X140-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster.
Equipped with a SUS304 stainless steel rod and PT tapered ports, this unit omits the FB, CA, CB, and CR mounts, utilizing a focused set of SAIJ attachments (Basic, FA, LB, TC, FTC, TCM1, TCM2). The rear adjuster acts purely as a travel stop for end-position tuning, meaning it will not hold a load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 140 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. |
| ×140 | 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 end-position for new packaging formats using the 40-140mm travel window, eliminating the need to physically swap cylinders during line transitions.
Fine-tune the retract distance on the fly for multi-stage machining operations, relying on the rear stopper to set precise physical limits.
Perfect the final positioning of a 2513N press motion during commissioning without fabricating custom external spacers or shims.
The generous 100mm adjustment window is ideal for adapting a single machine to multiple part sizes on the fly.
Because the 140mm stroke is relatively short, side-load risks are minimal, but the 25mm rod and M20x1.5 thread still provide excellent rigidity. For load-holding requirements without continuous air pressure, this cylinder is insufficient; you should specify an AirTAC SAIL or BSAI locking cylinder instead. This SKU is dimensionally interchangeable per ISO 15552 and lacks the -S magnet option, so it cannot host CMSE or DMSE sensors.
Quick checklist
The rear adjuster screw allows you to shorten the effective stroke by up to 100mm, creating a usable travel window between 40mm and 140mm. This stopper only sets the end position and does not lock the load without air pressure.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.