
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX210-50 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 SAIJ100X210-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 160-210 mm usable travel window, allowing you to dial back the nominal 210 mm stroke by up to 50 mm during commissioning.
This variant features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides. Mounting options cover Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX210-50 |
|---|---|
| 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 160-210 mm travel window during product size transitions to set new end positions without physically remounting cylinders.
Use the 50 mm rear adjustment screw to tune the retract end position precisely for multi-format packaging lines.
The 50 mm rear adjuster is selected when a process requires frequent product changeovers, letting you fine-tune the end position without adding external stops or swapping the cylinder. For applications needing to hold a load without live air pressure, this cylinder is insufficient as the adjuster is only a travel stop; consider SAIL or BSAI cylinders instead.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard footprint dimensions. To replace a unit, match the 100 mm bore, 210 mm stroke, 50 mm adjustment, PT G1/2 port, and the desired mounting. Because the stroke is 210 mm, ensure an external guide supports the load to prevent excessive side-loading on the 25 mm rod.
Quick checklist
At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster acts as a mechanical stop that shortens the retract stroke. For this model, it creates a 160-210 mm usable travel window, letting you fine-tune the end position without replacing the cylinder. The adjuster does not lock the load without live air.
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