
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX140-40 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 SAIJ80X140-40 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. This creates a usable stroke window of 100 to 140 mm, enabling precise end-position tuning at commissioning without adding external stops.
Equipped with an SUS420J2 stainless steel rod, it handles side loads effectively while offering good corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, and the PT tapered ports ensure a tight, leak-free pneumatic connection.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-40 |
|---|---|
| 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.
Perfect for dialing in the exact retract distance on packaging machines where material thickness varies, utilizing the 100 to 140 mm travel window.
Speeds up product line size transitions by allowing operators to fine-tune the stroke end position mechanically rather than swapping cylinders.
Provides 2513N of adjustable thrust at 0.5 MPa for pressing components, ensuring precise depth control without re-engineering the fixture.
The rear adjuster acts solely as a travel stop to set the retract position; it does not lock or hold the load without live air pressure. For load-holding requirements without continuous air, consider an external rod lock, or explore the SAIL or BSAI series.
This model is dimensionally interchangeable with ISO 15552 cylinders. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. Operating speed is 30-800 mm/s.
Quick checklist
It features a rear adjusting screw that lets you mechanically shorten the stroke by up to 40 mm. This provides a usable travel window of 100 to 140 mm, allowing you to set the exact retract end position during commissioning.
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