
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X475-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 475mm 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 SAIJ200X475-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 445-475mm usable travel window by dialing the stroke back up to 30mm from its 475mm nominal length. Built with a robust 40mm carbon steel rod and a G3/4 PT tapered port, it delivers massive thrust up to 28274N at 0.9 MPa.
This adjustable-stroke design allows fine end-position tuning at commissioning without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for future CMSE or DMSE sensor integration. Remember that the rear adjuster acts strictly as a travel stop and deceleration point, meaning it will not hold the load without live air pressure.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X475-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 475 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. |
| ×475 | 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 445-475mm end position during heavy press commissioning without machining new external stoppers.
Quickly adapt a heavy-duty production line to accommodate varying product lengths by adjusting the rear stopper.
Set precise retraction limits on large automated machinery using the 30mm adjustment range instead of a fixed stroke.
If you need slightly less thrust, stepping down to a 160mm bore yields 14074N at 0.7 MPa. The adjustable travel is highly advantageous for machine setup and product changeover, providing a 445-475mm window without external stops. For load-holding without live pressure, select a SAIL or BSAI cylinder instead, as this SAIJ adjuster is a stop, not a lock. Because the 475mm stroke is long and unsupported, an external guide is required to manage side loads. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552.
Quick checklist
The rear adjuster allows you to shorten the effective stroke by up to 30mm, creating a usable travel window between 445mm and 475mm. This permits fine end-position tuning without replacing the cylinder.
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