
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX700-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 700mm 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 SAIJ80X700-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from a 700 mm nominal stroke to a 625 mm minimum. This yields a 75 mm adjustment window for dialing in exact retract end positions during commissioning without adding external stops.
This SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and while this specific unit lacks a magnet, the shared design accommodates standard switches when needed. The rear adjuster acts purely as a travel stop to set the end position, meaning it cannot hold a load without continuous live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX700-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 700 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. |
| ×700 | 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 position within a 625-700 mm window during machine commissioning to accommodate varying material thicknesses without swapping cylinders.
Quickly adjust the rear stopper on automated packaging lines when switching between different package lengths, reducing downtime between production runs.
The adjustable rear stopper is ideal for machine setups requiring product changeovers, serving as a physical end-position boundary rather than a locking mechanism. If your sequence requires true load-holding without live air, consider the SAIL or BSAI series instead.
Because the 700 mm stroke creates a long unsupported rod extension, an external guide is strongly recommended to prevent side-load wear on the rod seals and barrel. When specifying an ISO 15552 replacement match, confirm the 80 mm bore, 700 mm nominal stroke, 75 mm adjustment range, PT port thread, and your required mounting accessory from the SAIJ set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Quick checklist
At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw lets you shorten the 700 mm nominal stroke by up to 75 mm, creating a usable travel window of 625 to 700 mm. The adjuster functions as a mechanical stop and does not lock the load without continuous air pressure.
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