
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX170-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 170mm 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 SAIJ80X170-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits fine-tuning of the end position. With a nominal 170 mm stroke and a 30 mm adjustment range, the usable travel window can be dialed back to 140 mm.
The unit incorporates a SUS304 stainless steel rod for corrosion resistance and uses PT tapered port threads. It supports a speed range of 30-800 mm/s and features adjustable air cushions at both ends to manage impact deceleration. The rear stopper sets the travel end, but does not hold the load without live air pressure; for load-holding without continuous supply, an external rod lock or a SAIL cylinder is required.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX170-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 170 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. |
| ×170 | 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 stop from 140 to 170 mm during product size changes without replacing the cylinder or adding external mechanical stops.
Fine-tune the final end position during commissioning to compensate for mechanical wear or sensor placement variations on the assembly line.
Adjust the pusher travel window on a conveyor sorting station to handle different package sizes on the fly.
If your process needs less force, stepping down to a 63 mm bore provides 1559 N, while stepping up to a 100 mm bore yields 3927 N. The adjustable stroke prevents the need to swap cylinders or add external stops when finalizing end positions.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 170 mm stroke, 30 mm adjustment, PT G3/8 ports, and mounting interface. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR. Because the stroke here is 170 mm, side-load risks are moderate, but any long unsupported load should still use an external guide.
Quick checklist
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke from its nominal 170 mm down to 140 mm. This creates a 140-170 mm travel window for fine-tuning without changing the cylinder itself.
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