
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X425-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 425mm 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 SAIJ200X425-10-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 425 mm nominal stroke that can be fine-tuned down by up to 10 mm, yielding a precise 415-425 mm usable travel window for heavy-duty commissioning.
This pneumatic actuator features a carbon steel piston rod and PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and because this SKU includes the -S magnet, it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact position detection. The rear stopper allows you to dial in the retract end-position without adding external stops, though it acts only as a travel limiter and does not hold the load without live air pressure.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X425-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 425 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. |
| ×425 | 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 415-425 mm retract position during heavy press setup, ensuring perfect alignment without machining new hard stops.
Adjust the end-of-stroke position on a conveyor diverter when switching between large pallet sizes, using the 10 mm trim to fine-tune the stopping point.
Provide 15708 N of clamping force at 0.5 MPa on heavy machinery, using the rear screw to set the precise final resting position of the tooling.
Because the 425 mm stroke is substantial, an external guide is strongly recommended to prevent excessive side-loading on the 40 mm carbon steel rod.
Choose the SAIJ adjustable format over a fixed-stroke SAI cylinder when you need variable end-stops for product-size changeovers. For load-holding without continuous air pressure, note that the rear adjuster and air cushions are not brakes; you would need to specify a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead. To match this ISO 15552 dimensionally interchangeable cylinder, specify: 200 mm bore, 425 mm stroke, 10 mm adjustment, PT port thread, and the -S magnet option.
Quick checklist
It features a rear adjusting screw that acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 10 mm. This creates a 415-425 mm travel window for fine-tuning the retract position at commissioning without swapping the cylinder.
At the maximum 1.0 MPa pressure, the push force reaches 3204 kgf.
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