
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX100-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 100mm 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 SAIJ80X100-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. The integrated adjustment screw allows you to trim the 100 mm nominal stroke back by up to 30 mm, creating a precise 70-100 mm usable travel window for exact end-position tuning.
This adjustable stopper lets you fine-tune the retract position during commissioning or product changeovers without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. The rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX100-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 100 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. |
| ×100 | 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 distance within the 70-100 mm window during machine setup to accommodate different material thicknesses without changing hardware.
Quickly adjust the stroke stop on packaging lines when switching between different container sizes, reducing downtime and eliminating external stop blocks.
The 30 mm adjustment window is ideal for machines that process varying product sizes, allowing operators to dial in the exact retract distance on the fly instead of machining custom spacers. For a fixed end-position requirement, a standard SAI cylinder would suffice, but the SAIJ variant provides crucial flexibility.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 100 mm stroke, PT G3/8 port, and the specific 30 mm adjustment code. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the stroke is 100 mm, side-load stress is minimal, though the substantial 25 mm SUS304 rod naturally handles greater off-center loads than smaller bores. If the machine requires true load-holding without continuous air pressure, select an external rod lock or a SAIL pneumatic lock cylinder instead.
Quick checklist
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 100 mm nominal stroke by up to 30 mm, providing an effective 70-100 mm travel window. It only sets the end position and does not lock the load without live air.
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