
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX20-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 20mm 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 SAIJ80X20-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 10 to 20 mm usable travel window. The SUS304 stainless steel rod provides excellent corrosion resistance, and the PT tapered ports ensure a tight, reliable pneumatic connection.
This adjustable model lets you fine-tune the retract end position at commissioning without adding external stops. It uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. The rear adjuster acts purely as a travel stop for deceleration alongside the standard air cushions, not as a load-holding lock.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX20-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 20 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. |
| ×20 | 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 exact end positions for short-stroke clamping or pressing tasks during initial machine commissioning.
Quickly adjust the 10-20 mm travel window on automated lines when switching to a slightly different product size.
Fine-tune retract stops on assembly stations without physically swapping out the entire pneumatic cylinder.
Choose this 80 mm bore if your application requires higher force than the 50 mm bore (982 N at 0.5 MPa) but does not need the massive output of the 100 mm class (3927 N). The 10 mm adjustment range is perfect for dialing in exact end-stops during machine setup or product changeovers, offering flexibility a fixed-stroke SAI cannot match. For holding loads without live air pressure, use a SAIL or BSAI locking cylinder instead of relying on this adjuster. To match this ISO 15552 footprint, specify an 80 mm bore, 20 mm stroke, 10 mm adjustment, PT ports, and a SUS304 rod.
Quick checklist
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster acts as an external stop, allowing you to shorten the 20 mm nominal stroke by up to 10 mm, creating a 10 to 20 mm usable travel window without replacing the cylinder.
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