
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X450-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 450mm 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 SAIJ200X450-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window from 420 to 450 mm. Built with an extruded aluminum barrel and a robust 40 mm carbon steel rod with an M36x2 thread, it delivers massive thrust up to 28274 N at 0.9 MPa, making it suitable for heavy-duty press applications. The PT tapered port thread ensures a reliable, leak-free connection.
This model includes adjustable air cushions at both ends to manage kinetic energy, but the rear stopper mechanism acts solely as a travel limiter rather than a load-holding lock. For applications requiring position retention without live air pressure, an external rod lock or an AirTAC BSAI clamp-lock cylinder is required. The integrated sensor grooves on both sides of the profile barrel accommodate CMSE reed or DMSE electronic solid-state switches if a magnet is specified later.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X450-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 450 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. |
| ×450 | 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 420-450 mm end-position for heavy stamping or forming tasks, allowing precise tuning during commissioning without adding external mechanical stops.
Adjust the retract distance on the fly to accommodate different pallet sizes on a packaging line, ensuring stops align perfectly with product changeovers.
If your application requires less thrust, stepping down to a 160 mm bore yields 14074 N at the same pressure, which might better suit standard material handling. The SAIJ200X450-30 is specifically selected over a fixed SAI cylinder when you need variable end-stops for machine setup or product changeover without physically swapping the actuator.
Because the 450 mm stroke exceeds 300 mm, the long unsupported rod is highly susceptible to side-loading damage and requires an external guide to prevent premature seal wear. The rear adjuster trims up to 30 mm of travel, but it will not hold the load pneumatically. Ensure your setup matches the ISO 15552 mounting interface using the available Basic, FA, LB, TC, FTC, TCM1, or TCM2 accessory set, noting that FB, CA, CB, and CR mounts are omitted from this adjustable series.
Quick checklist
The maximum thrust at 1.0 MPa is 3204 kgf.
The rear adjuster screw allows you to mechanically shorten the nominal 450 mm stroke by up to 30 mm, creating a usable travel window between 420 and 450 mm. This stopper limits the travel but does not lock the load without live air pressure.
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