
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX210-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 210mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ100X210-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 210 mm nominal stroke that can be dialed back by up to 75 mm, yielding a usable travel window of 135 to 210 mm.
This model uses a PT tapered port thread and omits the FB, CA, CB, and CR mounting options found on some standard cylinders, retaining a focused set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts. The rear adjuster acts purely as a mechanical stop to fine-tune end positions during commissioning; it does not hold the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX210-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 210 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 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. |
|---|---|
| 100 | Bore size in mm. |
| ×210 | 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 between 135 and 210 mm during machine commissioning without disassembling the pneumatic circuit.
Quickly adapt the stroke length on a packaging line to accommodate different carton sizes using the 75 mm rear stopper adjustment.
The 75 mm adjustment range is ideal for product changeovers, allowing operators to set variable end-stops on the fly without swapping the cylinder or adding external stops. For load-holding without continuous air pressure, consider an AirTAC SAIL or BSAI series cylinder instead.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 210 mm stroke, 75 mm adjustment, PT G1/2 port, and required mounting interface. Because the stroke is 210 mm, ensure adequate external guiding to prevent excessive side-loading on the rod and thread.
Quick checklist
At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the 210 mm nominal stroke down to 135 mm. This stopper only sets the end position and does not lock or hold the load without live air pressure.
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