
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X250-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 250mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ200X250-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits a usable travel window of 150 to 250 mm. The extruded aluminum barrel includes sensor grooves on both sides for straightforward switch placement.
This heavy-duty actuator uses a PT tapered port and provides variable air cushioning at both ends to manage kinetic energy. The rear stopper mechanism allows precise end-position tuning during commissioning without adding external stops, while the robust M36x2 rod thread handles high side-load stresses effectively.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X250-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 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. |
|---|---|
| 200 | Bore size in mm. |
| ×250 | 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 150 to 250 mm travel window during heavy press setup to accommodate varying material thicknesses without swapping actuators.
Adjust the retract stopper on the fly during product size transitions on a high-force assembly line, saving downtime on mechanical reconfiguration.
Set precise retract end-positions for large mold ejection or clamping tasks where the exact full stroke length varies per batch.
Conversely, if fixed travel is sufficient, a standard SAI cylinder provides the same ISO 15552 mounting footprint without the adjustment hardware.
When specifying a replacement, match the 200 mm bore, 250 mm nominal stroke, 100 mm adjustment range, PT port thread, and carbon steel rod. Because the nominal stroke is 250 mm, external guiding is recommended to support the rod and prevent excessive side-loading. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider an SAIL or BSAI variant.
Quick checklist
At its maximum 1.0 MPa pressure, it delivers up to 3204 kgf.
The rear adjuster screw acts as a mechanical stop that allows you to shorten the effective travel from the 250 mm nominal stroke down to 150 mm. This creates a 150 to 250 mm usable window for fine-tuning end positions at commissioning, but it functions only as a stop and does not lock the load without continuous air pressure.
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