
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX30-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 30mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ200X30-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a massive 15708 N push force at 0.5 MPa and uses a 40 mm SUS420J2 stainless steel piston rod with an M36x2 thread. By turning the rear stopper screw, you can trim the 30 mm nominal stroke back by up to 20 mm, creating a 10-30 mm usable travel window for precise mechanical synchronization.
This adjustable-stroke design allows you to fine-tune the retract end position at commissioning without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for CMSE and DMSE switches. It uses PT tapered G3/4 ports and offers a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB and CA options.
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX30-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 30 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 | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
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. |
| ×30 | 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 10-30 mm travel window during heavy press commissioning to accommodate material thickness variations without swapping cylinders.
Quickly adjust the retract end-stop on a packaging line when switching to a different product size, using the 20 mm adjustment range to save setup time.
Fine-tune the clamping position on large assemblies by trimming the stroke back from 30 mm, ensuring precise alignment using the 15708 N of available force.
Choose this 200 mm bore model when your application requires the highest thrust class, delivering 15708 N of push force at just 0.5 MPa. If you do not need this much power, stepping down to a 160 mm bore yields 10053 N, which may be more efficient. The SAIJ200X30-20 is specifically selected when a fixed 30 mm stroke is too rigid and you need a 10-30 mm variable end-stop window to dial in the exact position during machine setup or product changeover.
Because the rear adjuster acts only as a travel stop and the air cushions handle deceleration, this cylinder does not hold the load without live air. For load-holding requirements without continuous pressure, consider an external rod lock or the AirTAC SAIL or BSAI series. As a true ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders without claiming brand equivalence.
Quick checklist
At a 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 3204 kgf.
The rear stopper screw lets you mechanically shorten the 30 mm nominal stroke by up to 20 mm, providing a 10-30 mm usable travel window. This allows you to set the exact retract end position at commissioning without adding external stops.
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